Getting Started

Introduction

The Rossum API allows you to programmatically access and manage your organization's Rossum data and account information. The API allows you to do the following programmatically:

• Manage your organization, users, workspaces and queues
• Configure captured data: select extracted fields
• Integrate Rossum with other systems: import, export, extensions

On this page, you will find an introduction to the API usage from a developer perspective, and a reference to all the API objects and methods.

Developer Resources

There are several other key resources related to implementing, integrating and extending the Rossum platform:

• Refer to the Rossum Developer Portal for guides, tutorials, news and a community Q&A section.
• Subscribe to the rossum-api-announcements group to stay up to date on the API and platform updates.
• For managing and configuring your account, use the elisctl command-line tool. (Setup instructions.)
• For a management overview of Rossum implementation options, see the Rossum Integration Whitepaper.
• If you are an RPA developer, refer to our UiPath or BluePrism guides.

Quick API Tutorial

For a quick tutorial on how to authenticate, upload a document and export extracted data, see the sections below. If you want to skip this quick tutorial, continue directly to the Overview section.

It is a good idea to go through the introduction to the Rossum platform on the Developer Portal first to make sure you are up to speed on the basic Rossum concepts.

If in trouble, feel free to contact us at support@rossum.ai.

Install curl tool

Test curl is installed properly

curl https://api.elis.rossum.ai/v1

{"organizations":"https://api.elis.rossum.ai/v1/organizations","workspaces":"htt
ps://api.elis.rossum.ai/v1/workspaces","schemas":"https://api.elis.rossum.ai/v1/
schemas","connectors":"https://api.elis.rossum.ai/v1/connectors","inboxes":"http
s://api.elis.rossum.ai/v1/inboxes","queues":"https://api.elis.rossum.ai/v1/queue
s","documents":"https://api.elis.rossum.ai/v1/documents","users":"https://api.el
is.rossum.ai/v1/users","groups":"https://api.elis.rossum.ai/v1/groups","annotati
ons":"https://api.elis.rossum.ai/v1/annotations","pages":"https://api.elis.rossu
m.ai/v1/pages"}

All code samples included in this API documentation use curl, the command line data transfer tool. On MS Windows 10, MacOS X and most Linux distributions, curl should already be pre-installed. If not, please download it from curl.haxx.se).

Optionally use jq tool to pretty-print JSON output

curl https://api.elis.rossum.ai/v1 | jq

{
  "organizations": "https://api.elis.rossum.ai/v1/organizations",
  "workspaces": "https://api.elis.rossum.ai/v1/workspaces",
  "schemas": "https://api.elis.rossum.ai/v1/schemas",
  "connectors": "https://api.elis.rossum.ai/v1/connectors",
  "inboxes": "https://api.elis.rossum.ai/v1/inboxes",
  "queues": "https://api.elis.rossum.ai/v1/queues",
  "documents": "https://api.elis.rossum.ai/v1/documents",
  "users": "https://api.elis.rossum.ai/v1/users",
  "groups": "https://api.elis.rossum.ai/v1/groups",
  "annotations": "https://api.elis.rossum.ai/v1/annotations",
  "pages": "https://api.elis.rossum.ai/v1/pages"
}

You may also want to install jq tool to make curl output human-readable.

Use the API on Windows

This API documentation is written for usage in command line interpreters running on UNIX based operation systems (Linux and Mac). Windows users may need to use the following substitutions when working with API:

Character used in this documentation	Meaning/usage	Substitute character for Windows users
'	single quotes	"
"	double quotes	"" or \"
\	continue the command on the next line	^

Example of API call on UNIX-based OS

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' -H 'Content-Type: application/json' \
  -d '{"target_queue": "https://api.elis.rossum.ai/v1/queues/8236", "target_status": "to_review"}' \
  'https://api.elis.rossum.ai/v1/annotations/315777/copy'

Examples of API call on Windows

curl -H "Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03" -H "Content-Type: application/json" ^
  -d "{""target_queue"": ""https://api.elis.rossum.ai/v1/queues/8236"", ""target_status"": ""to_review""}" ^
  "https://api.elis.rossum.ai/v1/annotations/315777/copy"


curl -H "Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03" -H "Content-Type: application/json" ^
  -d "{\"target_queue\": \"https://api.elis.rossum.ai/v1/queues/8236\", \"target_status\": \"to_review\"}" ^
  "https://api.elis.rossum.ai/v1/annotations/315777/copy"

Create an account

In order to interact with the API, you need an account. If you do not have one, you can create one via our self-service portal.

Login to the account

Fill-in your username and password (login credentials to work with API are the same as those to log into your account.). Trigger login endpoint to obtain a key (token), that can be used in subsequent calls.

curl -s -H 'Content-Type: application/json' \
  -d '{"username": "east-west-trading-co@elis.rossum.ai", "password": "aCo2ohghBo8Oghai"}' \
  'https://api.elis.rossum.ai/v1/auth/login'
{"key": "db313f24f5738c8e04635e036ec8a45cdd6d6b03"}

This key will be valid for a default expire time (currently 162 hours) or until you log out from the sessions.

Upload a document

In order to upload a document (PDF or image) through the API, you need to obtain the id of a queue first.

curl -s -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03'
  'https://api.elis.rossum.ai/v1/queues?page_size=1' | jq -r .results[0].url
https://api.elis.rossum.ai/v1/queues/8199

Then you can upload document to the queue. Alternatively, you can send documents to a queue-related inbox. See upload for more information about importing files.

curl -s -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  -F content=@document.pdf 'https://api.elis.rossum.ai/v1/queues/8199/upload' | jq -r .results[0].annotation
https://api.elis.rossum.ai/v1/annotations/319668

Wait for document to be ready and review extracted data

As soon as a document is uploaded, it will show up in the queue and the data extraction will begin. It may take a few seconds to several minutes to process a document. You can check status of the annotation and wait until its status is changed to to_review.

curl -s -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/annotations/319668' | jq .status
"to_review"

After that, you can open the Rossum web interface elis.rossum.ai to review and confirm extracted data.

Download reviewed data

Now you can export extracted data using the export endpoint of the queue. You can select XML, CSV or JSON format. For CSV, use URL like:

curl -s -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/queues/8199/export?status=exported&format=csv&id=319668'
Invoice number,Invoice Date,PO Number,Due date,Vendor name,Vendor ID,Customer name,Customer ID,Total amount,
2183760194,2018-06-08,PO2231233,2018-06-08,Alza.cz a.s.,02231233,Rossum,05222322,500.00

Logout

Finally you can dispose token safely using logout endpoint:

curl -s -X POST -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/auth/logout'
{"detail":"Successfully logged out."}

Overview

HTTP and REST

The Rossum API is organized around REST. Our API has predictable, resource-oriented URLs, and uses HTTP response codes to indicate API errors. We use built-in HTTP features, like HTTP authentication and HTTP verbs, which are understood by off-the-shelf HTTP clients.

HTTP Verbs

Call the API using the following standard HTTP methods:

• GET to retrieve an object or multiple objects in a specific category
• POST to create an object
• PUT to modify entire object
• PATCH to modify fields of the object
• DELETE to delete an object

We support cross-origin resource sharing, allowing you to interact securely with our API from a client-side web application. JSON is returned by API responses, including errors (except when another format is requested, e.g. XML).

Authentication

Most of the API endpoints require user to be authenticated. To login to the Rossum API, post an object with username and password fields. Login returns new authentication key to be used in token authentication.

User may delete a token using logout endpoint or automatically after a configured time (default expire time is 162 hours). Default expire time can be lowered using max_token_lifetime_s field. When token expires, 401 status is returned. Users are expected to re-login to obtain a new token.

Login

Login user using username and password

curl -H 'Content-Type: application/json' \
  -d '{"username": "east-west-trading-co@elis.rossum.ai", "password": "aCo2ohghBo8Oghai"}' \
  'https://api.elis.rossum.ai/v1/auth/login'

{
  "key": "db313f24f5738c8e04635e036ec8a45cdd6d6b03"
}

POST /v1/auth/login

Use token key in requests

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/organizations/406'

Login user expiring after 1 hour

curl -H 'Content-Type: application/json' \
  -d '{"username": "east-west-trading-co@elis.rossum.ai", "password": "aCo2ohghBo8Oghai", "max_token_lifetime_s": 3600}' \
  'https://api.elis.rossum.ai/v1/auth/login'

{
  "key": "ltcg2p2w7o9vxju313f04rq7lcc4xu2bwso423b3"
}

Response

Status: 200

Returns object with "key", which is an actual authentication token.

Logout

Logout user

curl -X POST -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/auth/logout'

{
  "detail": "Successfully logged out."
}

POST /v1/auth/logout

Logout user, discard auth token.

Response

Status: 200

Pagination

All object list operations are paged by default, so you may need several API calls to obtain all objects of given type.

Parameter	Default	Maximum	Description
page_size	20	100 (*)	Number of results per page
page	1		Page of results

(*) Maximum page size of annotation list is 1000 for CSV export, 100 for other formats.

Filters and ordering

List queues of workspace 7540, with locale en_US and order results by name.

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/queues?workspace=7540&locale=en_US&ordering=name'

Lists may be filtered using various attributes. Multiple attributes are combined with AND, which results in more specific response. Please refer to the particular object description.

All filter parameters that refers to object expect only id (instead of URL) of the object.

Ordering of results may be enforced by the ordering parameter and one or more keys delimited by a comma. Preceding key with a minus sign - enforces descending order.

Metadata

Example metadata in a document object

{
  "id": 319768,
  "url": "https://api.elis.rossum.ai/v1/documents/319768",
  "s3_name": "05feca6b90d13e389c31c8fdeb7fea26",
  "annotations": [
    "https://api.elis.rossum.ai/v1/annotations/319668"
  ],
  "mime_type": "application/pdf",
  "arrived_at": "2019-02-11T19:22:33.993427Z",
  "original_file_name": "document.pdf",
  "content": "https://api.elis.rossum.ai/v1/documents/319768/content",
  "metadata": {
    "customer-id": "f205ec8a-5597-4dbb-8d66-5a53ea96cdea",
    "source": 9581,
    "authors": ["Joe Smith", "Peter Doe"]
  }
}

When working with API objects, it may be useful to attach some information to the object (e.g. customer id to a document). You can store custom JSON object in a metadata section available in most objects.

List of objects with metadata support: organization, workspace, user, queue, schema, connector, inbox, document, annotation, page.

Total metadata size may be up to 1 kB per object.

Versioning

API Version is part of the URL, e.g. https://api.elis.rossum.ai/v1/users.

To allow API progress, we consider addition of a field in a JSON object to be a backward-compatible operation that may be introduced at any time. Clients are expected to deal with such changes.

In order to be notified about future API changes and improvements, please subscribe to the rossum-api-announcements group.

Dates

All dates fields are represented as ISO 8601 formatted strings, e.g. 2018-06-01T21:36:42.223415Z. All returned dates are in UTC timezone.

Errors

Our API uses conventional HTTP response codes to indicate the success or failure of an API request.

Code	Status	Meaning
400	Bad Request	Invalid input data or error from connector.
401	Unauthorized	The username/password is invalid or token is invalid (e.g. expired).
403	Forbidden	Insufficient permission, missing authentication, invalid CSRF token and similar issues.
404	Not Found	Entity not found (e.g. already deleted).
405	Method Not Allowed	You tried to access an endpoint with an invalid method.
409	Conflict	Trying to change annotation not currently assigned or assigned to another user.
413	Payload Too Large	for too large payload (especially for files uploaded).
500	Internal Server Error	We had a problem with the server. Try again later.
503	Service Unavailable	We're temporarily offline for maintenance. Please try again later.

Import and Export

Documents may be imported into Rossum using the REST API and email gateway. Supported file formats are PDF, PNG, and JPEG.

In order to get the best results from Rossum the documents should be in A4 format of at least 150 DPI (in case of scans/photos).

Upload

You can upload a document to the queue using upload endpoint with one or more files to be uploaded. You can also specify additional field values in upload endpoint. As soon as a document is uploaded, data extraction is started.

Upload endpoint supports basic authentication to enable easy integration with third-party systems.

Import by Email

It is also possible to send documents by email using a properly configured inbox that is associated with a queue. Users then only need to know the email address to forward emails to.

For every incoming email, Rossum extracts PDF documents and images, stores them in the queue and starts data extraction process.

Small images (up to 100x100 pixels) are ignored, see inbox for reference.

Export

In order to export extracted and confirmed data you can call export endpoint. You can specify status, time-range filters and annotation id list to limit returned results.

Upload endpoint supports basic authentication to enable easy integration with third-party systems.

Auto-split of document

It is possible to process a single PDF file that contains several invoices. Just insert a special separator page between the documents. You can print this page and insert it between documents while scanning.

Rossum will recognize a QR code on the page and split the PDF into individual documents automatically. Produced documents are imported to the queue, while the original document is set to a split state.

Automation

All imported documents are processed by the data extraction process to obtain values of fields specified in the schema. Extracted values are then available for validation in the UI.

Using per-queue automation settings, it is possible to skip manual UI validation step and automatically proceed with the export of the document.

Currently, there are three levels of automation:

• No automation: User has to review all documents in the UI to validate extracted data (default).

• Partial automation: User only reviews documents with low data extraction confidence ("eye" icon is displayed for one or more fields) or validation errors.

• Full automation: All documents with no validation errors are exported.
  
  An error triggered by a schema field constraint or connector validation blocks auto-export even in full-automation level. In such case, non-required fields with validation errors are cleared and validation is performed again. In case the error persists, the document must be reviewed manually, otherwise it is exported.

Sources of field validation

Low-confidence fields are marked in the UI by an "eye" icon, we consider them to be not validated. On the API level they have an empty validation_sources list.

Validation of a field may be introduced by various sources: data extraction confidence above a threshold, computation of various checksums (e.g. VAT rate, net amount and gross amount) or a human review. These validations are recorded in the validation_source list. The data extraction confidence threshold may be adjusted, see validation sources for details.

AI Confidence Scores

While there are multiple ways to automatically pre-validate fields, the most prominent one is score-based validation based on AI Core Engine confidence scores.

The confidence score predicted for each AI-extractd field is stored in the rir_confidence attribute. The score is a number between 0 and 1, and is calibrated in such a way that it corresponds to the probability of a given value to be correct. In other words, a field with score 0.80 is expected to be correct 4 out of 5 times.

The value of the score_threshold (can be set on queue, or individually per datapoint in schema; default is 0.975) attribute represents the minimum score that triggers automatic validation. Because of the score meaning, this directly corresponds to the achieved accuracy. For example, if a score threshold for validation is set at 0.975, that gives an expected error rate of 2.5% for that field.

Usage report

In order to obtain an overview of the Rossum usage, you can download Excel file with basic Rossum statistics.

The statistics contains following attributes:

• Username (may be empty in case document was not modified by any user)
• Workspace name
• Queue name
• Imported: count of all documents that were imported during the time period
• Deleted: count of documents that were deleted during the time period
• Exported: count of documents that were successfully exported during the time period
• Net time: total time spent by a user validating the successfully exported documents

Download usage statistics (January 2019).

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/manage/usage-report?from=2019-01-01&to=2019-01-31'

Excel file (xlsx) may be downloaded from https://api.elis.rossum.ai/manage/usage-report.

You may specify date range using from and to parameters (inclusive). If not specified, a report for last 12 months is generated.

New API

A new API, which contains more information, is being introduced. Eventually, it will replace the original https://api.elis.rossum.ai/manage/usage-report usage report.

Download usage report (December 2019 - February 2020).

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' -H 'Content-Type: application/json' \
  'https://api.elis.rossum.ai/v1/annotations/usage-report' -d '{"filter": {"begin_date": "2019-12-01", "end_date": "2020-01-31"}}'

Request

POST /v1/annotations/usage-report

Attribute	Type	Description
filter	object	Filters to be applied on documents used for the computation of usage report
filter.users	list[URL]	Filter documents modified by the specified users (not applied to imported_count)
filter.queues	list[URL]	Filter documents from the specified queues
filter.begin_date	datetime	Filter documents that has date (arrived_at for imported_count, modified_at for deleted_count, or exported_at for the rest) greater than specified.
filter.end_date	datetime	Filter documents that has date (arrived_at for imported_count, modified_at for deleted_count, or exported_at for the rest) lower than specified.
exported_on_time_threshold_s	float	Threshold (in seconds) under which are documents denoted as on_time.
group_by	list[string]	List of attributes by which the series should be grouped. Possible values: user, workspace, queue, month, week, day.

{
  "filter": {
    "users": [
      "https://api.elis.rossum.ai/v1/users/173"
    ],
    "queues": [
      "https://api.elis.rossum.ai/v1/queues/8199"
    ],
    "begin_date": "2019-12-01",
    "end_date": "2020-01-31"
  },
  "exported_on_time_threshold_s": 86400,
  "group_by": [
    "user",
    "workspace",
    "queue",
    "month"
  ]
}

Response

Status: 200

{
  "series": [
    {
      "begin_date": "2019-12-01",
      "end_date": "2020-01-01",
      "queue": "https://api.elis.rossum.ai/v1/queues/8199",
      "workspace": "https://api.elis.rossum.ai/v1/workspaces/7540",
      "values": {
        "imported_count": 2,
        "deleted_count": null,
        "exported_count": null,
        "turnaround_avg_s": null,
        "corrections_per_document_avg": null,
        "exported_on_time_count": null,
        "exported_late_count": null,
        "time_per_document_avg_s": null,
        "time_and_corrections_per_field": []
      }
    },
    {
      "begin_date": "2020-01-01",
      "end_date": "2020-02-01",
      "queue": "https://api.elis.rossum.ai/v1/queues/8199",
      "workspace": "https://api.elis.rossum.ai/v1/workspaces/7540",
      "user": "https://api.elis.rossum.ai/v1/users/173",
      "values": {
        "imported_count": null,
        "deleted_count": 2,
        "exported_count": 2,
        "turnaround_avg_s": 1341000,
        "corrections_per_document_avg": 1.0,
        "exported_on_time_count": 1,
        "exported_late_count": 1,
        "time_per_document_avg_s": 70.0,
        "time_and_corrections_per_field": [
          {
            "schema_id": "date_due",
            "label": "Date due",
            "total_count": 1,
            "corrected_ratio": 0.0,
            "time_spent_avg_s": 0.0
          },
          ...
        ]
      }
    },
    ...
  ],
  "totals": {
    "imported_count": 7,
    "deleted_count": 2,
    "exported_count": 3,
    "turnaround_avg_s": 894000,
    "corrections_per_document_avg": 1.0,
    "exported_on_time_count": 2,
    "exported_late_count": 1,
    "time_per_document_avg_s": 70.0
  }
}

The response consists of two parts: totalsand series.

Totals

Totals contain summary information for the whole period (between begin_date and end_date).

Attribute	Type	Description
imported_count	int	Count of documents that were uploaded to Rossum
deleted_count	int	Count of documents that were deleted
exported_count	int	Count of documents that were successfully exported
turnaround_avg_s	float	Average time (in seconds) that spends a document in Rossum (computed as time exported_at - arrived_at)
corrections_per_document_avg	float	Average count of corrections on documents
exported_on_time_count	int	Number of documents of which turnaround was under exported_on_time_threshold
exported_late_count	int	Number of documents of which turnaround was above exported_on_time_threshold
time_per_document_avg_s	float	Average time (in seconds) that users spent validating documents

Series

Series contain information grouped by fields defined in group_by. The data (see above) are wrapped in values object, and accompanied by the values of of attributes that were used for grouping.

Attribute	Type	Description
user	URL	User, who modified documents within the group
workspace	URL	Workspace, in which are the documents within the group
queue	URL	Queue, in which are the documents within the group
begin_date	date	Start date, of the documents within the group
end_date	date	Final date, of the documents within the group
values	object	Contains the data of totals and time_and_corrections_per_field list (for details see below).

In addition to the totals data, series contain time_and_corrections_per_field list that provides detailed data about statistics on each field.

Series details

The detail object contains statistics grouped per field (schema_id).

Attribute	Type	Description
schema_id	string	Reference mapping of the data object to the schema tree
label	string	Label of the data object (taken from schema).
total_count	int	Number of data objects
corrected_ratio	float [0;1]	Ratio of data objects that must have been corrected after automatic extraction.
time_spent_avg_s	float	Average time (in seconds) spent on validating the data objects

Document Schema

Every queue has an associated schema that specifies which fields will be extracted from documents as well as the structure of the data sent to connector and exported from the platform.

Rossum schema supports single datapoints (datapoint), lists of datapoints of the same type (multivalue) or tuples (tuple). At the topmost level, each schema consists of sections, which may either directly contain actual data (datapoints) or use nested multivalues and tuples as containers for single datapoints.

But while schema may theoretically consist of an arbitrary number of nested containers, the Rossum UI supports only certain particular combinations of datapoint types. The supported shapes are:

• simple: atomic datapoints of type number, string, date or enum
• list: simple datapoint within a multivalue
• tabular: simple datapoint within a "multivalue tuple" (a multivalue list containing a tuple for every row)

Schema content

Schema content consists of a list of section objects.

Common attributes

The following attributes are common for all schema objects:

Attribute	Type	Description	Required
category	string	Category of an object, one of section, multivalue, tuple or datapoint.	yes
id	string	Unique identifier of an object.	yes
label	string	User-friendly label for an object, shown in the user interface	yes
hidden	boolean	If set to true, the object is not visible in the user interface, but remains stored in the database and may be exported. Default is false.	no

Section

Example of a section

{
    "category": "section",
    "id": "amounts_section",
    "label": "Amounts",
    "children": [...],
    "icon": ""
}

Section represents a logical part of the document, such as amounts or vendor info. It is allowed only at the top level. Schema allows multiple sections, and there should be at least one section in the schema.

Attribute	Type	Description	Required
children	list[object]	Specifies objects grouped under a given section. It can contain multivalue or datapoint objects.	yes
icon	string	The icon that appears on the left panel in the UI for a given section (not yet supported on UI).

Datapoint

A datapoint represents a single value, typically a field of a document or some global document information. Fields common to all datapoint types:

Attribute	Type	Description	Required
type	string	Data type of the object, must be one of the following: string, number, date, enum, button	yes
can_export	boolean	If set to false, datapoint is not exported through export endpoint. Default is true.
can_collapse	boolean	If set to true, tabular (multivalue-tuple) datapoint may be collapsed in the UI. Default is false.
rir_field_names	list[string]	List of references used to initialize an object value. See below for the description.
default_value	string	Default value used either for fields that do not use hints from DE API predictions (i.e. rir_field_names are not specified), or DE API does not return any data for the field.
constraints	object	A map of various constraints for the field. See Value constraints.
width	integer	Width of the column (in characters). Default widths are: number: 8, string: 20, date: 10, enum: 20. Only supported for table datapoints.
stretch	boolean	If total width of columns doesn’t fill up the screen, datapoints with stretch set to true will be expanded proportionally to other stretching columns. Only supported for table datapoints.
width_chars	integer	Deprecated. Use width and stretch properties instead.
score_threshold	float [0;1]	Threshold used to automatically validate field content based on AI confidence scores. If not set, queue.default_score_threshold is used.

rir_field_names attribute allows to specify source of initial value of the object. List items may be:

• one of extracted field types to use DE API prediction value and/or
• upload:id to identify a value specified while uploading the document

If more list items in rir_field_names are specified, the first available value will be used.

String type

Example string datapoint

{
    "category": "datapoint",
    "id": "invoice_id",
    "label": "Invoice ID",
    "type": "string",
    "default_value": null,
    "rir_field_names": ["invoice_id"],
    "constraints": {
        "length": {
            "exact": null,
            "max": 16,
            "min": null
        },
        "regexp": {
            "pattern": ""
        },
        "required": false
    }
}

String datapoint does not have any special attribute.

Date type

Example date datapoint

{
  "id": "item_delivered",
  "type": "date",
  "label": "Item Delivered",
  "format": "MM/DD/YYYY",
  "category": "datapoint"
}

Attributes specific to Date datapoint:

Attribute	Type	Description	Required
format	string	Enforces a format for date datapoint on the UI. See Date format below for more details. Default is YYYY-MM-DD.

Date format supported: available tokens

Example date formats:

• D/M/YYYY: e.g. 23/1/2019
• MM/DD/YYYY: e.g. 01/23/2019
• YYYY-MM-DD: e.g. 2019-01-23 (ISO date format)

Number type

Example number datapoint

{
  "id": "item_quantity",
  "type": "number",
  "label": "Quantity",
  "format": "#,##0.#",
  "category": "datapoint",
}

Attributes specific to Number datapoint:

Attribute	Type	Description	Required
format	string	Available choices are # ##0,#, # ##0.#, #,##0.#, # ##0, #,##0 and null. Default is # ##0.#.

Enum type

Example enum datapoint with options

{
  "id": "document_type",
  "type": "enum",
  "label": "Document type",
  "hidden": false,
  "category": "datapoint",
  "options": [
    {
      "label": "Invoice Received",
      "value": "21"
    },
    {
      "label": "Invoice Sent",
      "value": "22"
    },
    {
      "label": "Receipt",
      "value": "23"
    }
  ],
  "default_value": "21",
  "rir_field_names": []
}

Attributes specific to Enum datapoint:

Attribute	Type	Description	Required
options	object	See object description below.	yes

Every option consists of an object with keys:

Attribute	Type	Description	Required
value	string	Value of the option.	yes
label	string	User-friendly label for the option, shown in the UI.	yes

Enum datapoint value is matched in a case insensitive mode, e.g. EUR currency value returned by the AI Core Engine is matched successfully against {"value": "eur", "label": "Euro"} option.

Button type

Specifies a button shown in Rossum UI. For more details please refer to custom UI extension.

Example button datapoint

{
  "id": "show_email",
  "type": "button",
  "category": "datapoint",
  "popup_url": "http://example.com/show_customer_data",
}

Despite being a datapoint object, button currently cannot hold any value. Therefore, the set of available Button datapoint attributes is limited to:

Attribute	Type	Description	Required
type	string	Data type of the object, must be one of the following: string, number, date, enum, button	yes
can_export	boolean	If set to false, datapoint is not exported through export endpoint. Default is true.
can_collapse	boolean	If set to true, tabular (multivalue-tuple) datapoint may be collapsed in the UI. Default is false.
popup_url	string	URL of a popup window to be opened when button is pressed.	yes

Value constraints

Example value constraints

{
  "id": "invoice_id",
  "type": "string",
  "label": "Invoice ID",
  "category": "datapoint",
  "constraints": {
    "length": {
      "max": 32,
      "min": 5
    },
    "required": false
  },
  "default_value": null,
  "rir_field_names": [
    "invoice_id"
  ]
}

Constraints limit allowed values. When constraints is not satisfied, annotation is considered invalid and cannot be exported.

Attribute	Type	Description	Required
length	object	Defines minimum, maximum or exact length for the datapoint value. By default, minimum and maximum are 0 and infinity, respectively. Supported attributes: min, max and exact
regexp	object	When specified, content must match a regular expression. Supported attributes: pattern
required	boolean	Specifies if the datapoint is required by the schema. Default value is true.

Multivalue

Example of a multivalue:

{
  "category": "multivalue",
  "id": "line_item",
  "label": "Line Item",
  "children": {
    ...
  },
  "min_occurrences": null,
  "max_occurrences": null
}

Example of a multivalue with grid row-types specification:

{
  "category": "multivalue",
  "id": "line_item",
  "label": "Line Item",
  "children": {
    ...
  },
  "grid": {
    "row_types": [
      "header", "data", "footer"
    ],
    "default_row_type": "data",
    "row_types_to_extract": [
      "data"
    ]
  },
  "min_occurrences": null,
  "max_occurrences": null
}

Multivalue is list of datapoints or tuples of the same type. It represents a container for data with multiple occurrences (such as line items) and can contain only objects with the same id.

Attribute	Type	Description	Required
children	object	Object specifying type of children. It can contain only objects with categories tuple or datapoint.	yes
min_occurrences	integer	Minimum number of occurrences of nested objects. If condition of min_occurrences is violated corresponding fields should be manually reviewed. Minimum required value for the field is 0. If not specified, it is set to 0 by default.
max_occurrences	integer	Maximum number of occurrences of nested objects. All additional rows above max_occurrences are removed by extraction process. Minimum required value for the field is 1. If not specified, it is set to infinity by default.
grid	object	Configure magic-grid feature properties, see below.

Multivalue grid object

Multivalue grid object allows to specify a row type for each row of the grid. For data representation of actual grid data rows see Grid object description.

Attribute	Type	Description	Default	Required
row_types	list[string]	List of allowed row type values.	["data"]	yes
default_row_type	string	Row type to be used by default	data	yes
row_types_to_extract	string	Types of rows to be extracted to related table	data	yes

For example to distinguish two header types and a footer in the validation interface, following row types may be used: header, subsection_header, data and footer.

Currently, data extraction classifies every row as either data or header (additional row types may be introduced in the future). We remove rows returned by data extraction that are not in row_types list (e.g. header by default) and are on the top/bottom of the table. When they are in the middle of the table, we mark them as skipped (null).

There are three visual modes, based on row_types quantity:

• More than two row types defined: User selects row types freely to any non-default row type. Clearing row type resets to a default row type. We support up to 6 colors to easily distinguish row types visually.
• Two row types defined (header and default): User only marks header and skipped rows. Clearing row type resets to a default row type.
• One row type defined: User is only able to mark row as skipped (null value in data). This is also a default behavior when no grid row types configuration is specified in the schema.

Tuple

Example of a tuple:

{
  "category": "tuple",
  "id": "tax_details",
  "label": "Tax Details",
  "children": [
    ...
  ],
  "rir_field_names": [
    "tax_details"
  ]
}

Container representing tabular data with related values, such as tax details. A tuple must be nested within a multivalue object, but unlike multivalue, it may consist of objects with different ids.

Attribute	Type	Description	Required
children	list[object]	Array specifying objects that belong to a given tuple. It can contain only objects with category datapoint.	yes
rir_field_names	list[string]	List of names used to initialize content from DE API predictions. If specified, the value of the first extracted field from the array is used, otherwise, no DE API initialization is done for the object.

Updating Schema

When project evolves, it is a common practice to enhance or change the extracted field set. This is done by updating the schema object.

By design, Rossum supports multiple schema versions at the same time. However, each document annotation is related to only one of those schemas. If the schema is updated, all related document annotations are updated accordingly. See preserving data on schema change below for limitations of schema updates.

In addition, every queue is linked to a schema, which is used for all newly imported documents.

When updating a schema, there are two possible approaches:

• Update the schema object (PUT/PATCH). All related annotations will be updated to match current schema shape (even exported and deleted documents).
• Create a new schema object (POST) and link it to the queue. In such case, only newly created objects will use the current schema. All previously created objects will remain in the shape of their linked schema.

Use case 1 - Initial setting of a schema

• Situation: User is initially setting up the schema. This might be an iterative process.
• Recommendation: Edit the existing schema by updating schema (PUT) or updating part of a schema (PATCH).

Use case 2 - Updating attributes of a field (label, constraints, options, etc.)

• Situation: User is updating field, e.g. changing label, number format, constraints, enum options, hidden flag, etc.
• Recommendation: Edit existing schema (see Use case 1).

Use case 3 - Adding new field to a schema, even for already imported documents.

• Situation: User is extending a production schema by adding a new field. Moreover, user would like to see all annotations (to_review, postponed, exported, deleted, etc. states) in the look of the newly extended schema.
• Recommendation: Edit existing schema (see Use case 1). Data of already created annotations will be transformed to the shape of the updated schema. New fields of annotations in to_review and postponed state that are linked to extracted fields types will be filled by AI Core Engine, if available. New fields for already exported or deleted annotations (also purged, exporting and failed_export) will be filled with empty or default values.

Use case 4 - Adding new field to schema, only for newly imported documents

• Situation: User is extending a production schema by adding a new field. However, with the intention that the user does not want to see the newly added field on previously created annotations.
• Recommendation: Create a new schema object (POST) and link it to the queue. Annotation data of previously created annotations will be preserved according to the original schema. This approach is recommended if there is an organizational need to keep different field sets before and after the schema update.

Use case 5 - Deleting schema field, even for already imported documents.

• Situation: User is changing a production schema by removing a field that was used previously. However, user would like to see all annotations (to_review, postponed, exported, deleted, etc. states) in the look of the newly extended schema. There is no need to see the original fields in already exported annotations.
• Recommendation: Edit existing schema (see Use case 1).

Use case 6 - Deleting schema field, only for newly imported documents

• Situation: User is changing a production schema by removing a field that was used previously. However, with the intention that the user will still be able to see the removed fields on previously created annotations.
• Recommendation: Create a new schema object (see Use case 4). Annotation data of previously created annotations will be preserved according to the original schema. This approach is recommended if there is an organizational need to retrieve the data in the original state.

Preserving data on schema change

In order to transfer annotation field values properly during the schema update, a datapoint's category and schema_id must be preserved.

Supported operations that preserve fields values are:

• adding a new datapoint (filled from Data Extractor, if available)
• reordering datapoints on the same level
• moving datapoints from section to another section
• moving datapoints to and from a tuple
• reordering datapoints inside a tuple
• making datapoint a multivalue (original datapoint is the only value in a new multivalue container)
• making datapoint non-multivalue (only first datapoint value is preserved)

Extracted field types

DE API currently automatically extracts the following fields at the all endpoint, subject to ongoing expansion.

Identifiers

Example of a schema with different identifiers:

[
  {
    "category": "section",
    "children": [
      {
        "category": "datapoint",
        "constraints": {
          "required": false
        },
        "default_value": null,
        "id": "invoice_id",
        "label": "Invoice number",
        "rir_field_names": [
          "invoice_id"
        ],
        "type": "string"
      },
      {
        "category": "datapoint",
        "constraints": {
          "required": false
        },
        "default_value": null,
        "format": "D/M/YYYY",
        "id": "date_issue",
        "label": "Issue date",
        "rir_field_names": [
          "date_issue"
        ],
        "type": "date"
      },
      {
        "category": "datapoint",
        "constraints": {
          "required": false
        },
        "default_value": null,
        "id": "terms",
        "label": "Terms",
        "rir_field_names": [
          "terms"
        ],
        "type": "string"
      }
    ],
    "icon": null,
    "id": "invoice_info_section",
    "label": "Basic information"
  }
]

Attr. rir_field_names	Field label	Description
account_num	Bank Account	Bank account number
bank_num	Sort Code	Sort code. Numerical code of the bank.
bic	BIC/SWIFT	Bank BIC or SWIFT code.
const_sym	Constant Symbol	Statistical code on payment order.
customer_id	Customer Number	The number by which the customer is registered in the system of the supplier.
date_due	Date Due	The due date of the invoice.
date_issue	Issue Date	Date of issue of the document.
date_uzp	Tax Point Date	The date of taxable event.
iban	IBAN	Bank account number in IBAN format.
invoice_id	Invoice Identifier	Invoice number.
order_id	Order Number	Purchase order identification.
recipient_address	Recipient Address	Address of the customer.
recipient_dic	Recipient Tax Number	Tax identification number of the customer.
recipient_ic	Recipient Company ID	Company identification number of the customer.
recipient_name	Recipient Name	Name of the customer.
recipient_vat_id	Recipient VAT Number	Customer VAT Number
sender_address	Supplier Address	Address of the supplier.
sender_dic	Supplier Tax Number	Tax identification number of the supplier.
sender_ic	Supplier Company ID	Business/organization identification number of the supplier.
sender_name	Supplier Name	Name of the supplier.
sender_vat_id	Supplier VAT Number	VAT identification number of the supplier.
spec_sym	Specific Symbol	Payee id on the payment order, or similar.
terms	Terms	Payment terms as written on the document (eg. "45 days", "upon receipt").
var_sym	Payment reference	In some countries used by the supplier to match the payment received against the invoice.

Document attributes

Attr. rir_field_names	Field label	Description
currency	Currency	The currency which the invoice is to be paid in. Possible values: CZK, DKK, EUR, GBP, NOK, SEK, USD or other. May be also in lowercase.
invoice_type	Invoice Type	Possible values: credit_note, debit_note, tax_invoice (most typical), proforma, receipt or other.
language	Language	The language which the document was written in. Possible values: ces, deu, eng, fra, slk or other.

Amounts

Attr. rir_field_names	Field label	Description
amount_due	Amount Due	Final amount including tax to be paid after deducting all discounts and advances.
amount_rounding	Amount Rounding	Remainder after rounding amount_total.
amount_total	Total Amount	Subtotal over all items, including tax.
amount_paid	Amount paid	Amount paid already.
amount_total_base	Tax Base Total	Base amount for tax calculation.
amount_total_tax	Tax Total	Total tax amount.

Typical relations (may depend on local laws):

amount_total = amount_total_base + amount_total_tax
amount_rounding = amount_total - round(amount_total)
amount_due = amount_total - amount_paid + amount_rounding

All amounts are in the main currency of the invoice (as identified in the currency response field). Amounts in other currencies are generally excluded.

Tax details table

Tax details table and breakdown by tax rates.

Attr. rir_field_names	Field label	Description
tax_detail_base	Tax Base	Sum of tax bases for items with the same tax rate.
tax_detail_rate	Tax Rate	One of the tax rates in the tax breakdown.
tax_detail_tax	Tax Amount	Sum of taxes for items with the same tax rate.
tax_detail_total	Tax Total	Total amount including tax for all items with the same tax rate.

Line items table

Example of a line items table:

    {
    "category": "section",
    "children": [
      {
        "category": "multivalue",
        "children": {
          "category": "tuple",
          "children": [
            {
              "category": "datapoint",
              "constraints": {
                "required": false
              },
              "default_value": null,
              "id": "item_id",
              "label": "Item Id",
              "rir_field_names": [
                "table_column_code"
              ],
              "type": "string",
              "width": 20
            },
            {
              "category": "datapoint",
              "constraints": {
                "required": true
              },
              "default_value": null,
              "id": "item_desc",
              "label": "Description",
              "rir_field_names": [
                "table_column_description"
              ],
              "type": "string",
              "stretch": true
            },
            {
              "category": "datapoint",
              "constraints": {
                "required": false
              },
              "default_value": null,
              "format": "# ##0.#",
              "id": "item_quantity",
              "label": "Quantity",
              "rir_field_names": [
                "table_column_quantity"
              ],
              "type": "number",
              "width": 15
            },
            {
              "category": "datapoint",
              "constraints": {
                "required": false
              },
              "default_value": null,
              "format": "# ##0.#",
              "id": "item_net_unit_price",
              "label": "Unit price w/o tax",
              "rir_field_names": [
                "table_column_amount_base"
              ],
              "type": "number"
            },
            {
              "category": "datapoint",
              "constraints": {
                "required": false
              },
              "default_value": null,
              "format": "# ##0.#",
              "id": "item_vat_rate",
              "label": "Tax rate",
              "rir_field_names": [
                "table_column_rate"
              ],
              "type": "number"
            },
            {
              "category": "datapoint",
              "constraints": {
                "required": false
              },
              "default_value": null,
              "format": "# ##0.#",
              "id": "item_amount_total",
              "label": "Price w tax",
              "rir_field_names": [
                "table_column_amount_total"
              ],
              "type": "number"
            }
          ],
          "id": "line_item",
          "label": "Line item",
          "rir_field_names": []
        },
        "default_value": null,
        "id": "line_items",
        "label": "Line item",
        "max_occurrences": null,
        "min_occurrences": null
      }
    ],
    "icon": null,
    "id": "line_items_section",
    "label": "Line items"
  }

DE API currently automatically extracts line item table content and recognizes row and column types as detailed below. Invoice line items come in a wide variety of different shapes and forms. The current implementation can deal with (or learn) most layouts, with borders or not, different spacings, header rows, etc. We currently make two further assumptions:

• The table generally follows a grid structure - that is, columns and rows may be represented as rectangle spans. In practice, this means that we may currently cut off text that overlaps from one cell to the next column. We are also not optimizing for table rows that are wrapped to multiple physical lines.
• The table contains just a flat structure of line items, without subsection headers, nested tables, etc.

We plan to gradually remove both assumptions in the future.

Attribute rir_field_names	Field label	Description
table_column_code	Item Code/Id	Can be the SKU, EAN, a custom code (string of letters/numbers) or even just the line number.
table_column_description	Item Description	Line item description. Can be multi-line with details.
table_column_quantity	Item Quantity	Quantity of the item.
table_column_uom	Item Unit of Measure	Unit of measure of the item (kg, container, piece, gallon, ...).
table_column_rate	Item Rate	Tax rate for the line item.
table_column_tax	Item Tax	Tax amount for the line. Rule of thumb: tax = rate * amount_base.
table_column_amount_base	Amount Base	Unit price without tax. (This is the primary unit price extracted.)
table_column_amount	Amount	Unit price with tax. Rule of thumb: amount = amount_base + tax.
table_column_amount_total_base	Amount Total Base	The total amount to be paid for all the items excluding the tax. Rule of thumb: amount_total_base = amount_base * quantity.
table_column_amount_total	Amount Total	The total amount to be paid for all the items including the tax. Rule of thumb: amount_total = amount * quantity.
table_column_other	Other	Unrecognized data type.

Document Lifecycle

Each document is submitted to Rossum within a given queue. Then it goes through a variety of states as it is processed, and eventually exported.

State	Description
importing	Document is being processed by the AI Core Engine for data extraction; initial state of the document.
failed_import	Import failed e.g. due to a malformed document file.
to_review	Initial extraction step is done and the document is waiting for user validation.
reviewing	Document is undergoing validation in the user interface.
exporting	Document is validated and is now awaiting the completion of connector save call. See connector extension for more information on this status.
exported	Document is validated and successfully passed all hooks; this is the typical terminal state of a document.
failed_export	When the connector returned an error.
postponed	Operator has chosen to postpone the document instead of exporting it.
deleted	When the document was deleted by the user.
purged	Only metadata was preserved after a deletion.

Extensions

The Rossum platform may be extended via third-party, externally running services. These extensions may either call the Rossum API, or can register to receive callbacks from the Rossum platform on various occassions. Currently we support two modes of callback: Connector and Webhook.

See the Building Your Own Extension set of guides in Rossum's developer portal for an introduction to Rossum extensions.

Connector Extension

The connector component is aimed at two main usecases: applying custom business rules during extraction, and direct integration of Rossum with downstream systems. The connector component receives two types of callbacks - an on-the-fly validation callback on every update of captured data, and an on-export save callback when the document capture is finalized.

The custom business rules take use chiefly of the on-the-fly validation callback. The connector can auto-validate and transform both the initial AI-based extractions and each user operator edit within the validation screen; based on the input, it can push user-visible messages and value updates back to Rossum. This allows for both simple tweaks (like verifying that two amounts sum together or transforming decimal points to thousand separators) and complex functionality like intelligent PO match.

The integration with downstream systems on the other hand relies mainly on the save callback. At the same moment a document is exported from Rossum, it can be imported to a downstream system. Since there are typically constraints on the captured data, these constraints can be enforced even within the validation callback.

Implement a connector

Connectors are designed to be implemented using a push-model using common HTTPS protocol. When annotation data is changed, or when data export is triggered, specific connector endpoint is called with annotation data as a request payload. The connector must be deployed with a public IP address so that the Rossum platform can call its hooks; for testing, a middleware like ngrok or serveo may come useful.

Example of a valid no-op (empty) validate response

{"messages": [], "updated_datapoints": []}

Example of a valid no-op (empty) save response

{}

The connector API consists of two hooks, validate and save, described below. A connector must always implement both hooks (though they may not necessarily perform a function in a particular connector - see the right column for an empty reply example), the platform raises an error if it is not able to run a hook.

Setup a connector

The next step after implementing the first version of a connector is configuring it in the Rossum platform.

In Rossum, a connector object defines service_url and params for construction of HTTPS requests and authorization_token that is passed in every request to authenticate the caller as the actual Rossum server. It may also uniquely identify the organization when multiple Rossum organizations share the same connector server.

To set-up a connector for a queue, create a connector object using either our API or the elisctl tool – follow these instructions. A connector object may be associated with one or more queues. One queue can only have one connector object associated with it.

Connector API

Example data sent to connector (validate, save)

{
  "meta": {
    "document_url": "https://api.elis.rossum.ai/v1/documents/6780",
    "arrived_at": "2019-01-30T07:55:13.208304Z",
    "original_file": "https://api.elis.rossum.ai/v1/original/bf0db41937df8525aa7f3f9b18a562f3",
    "original_filename": "Invoice.pdf",
    "queue_name": "Invoices",
    "workspace_name": "EU",
    "organization_name": "East West Trading Co",
    "annotation": "https://api.elis.rossum.ai/v1/annotations/4710",
    "queue": "https://api.elis.rossum.ai/v1/queues/63",
    "workspace": "https://api.elis.rossum.ai/v1/workspaces/62",
    "organization": "https://api.elis.rossum.ai/v1/organizations/1",
    "modifier": "https://api.elis.rossum.ai/v1/users/27",
    "updated_datapoint_ids": ["197468"],
    "modifier_metadata": {},
    "queue_metadata": {},
    "annotation_metadata": {},
    "rir_poll_id": "54f6b9ecfa751789f71ddf12"
  },
  "content": [
    {
      "id": "197466",
      "category": "section",
      "schema_id": "invoice_info_section",
      "children": [
        {
          "id": "197467",
          "category": "datapoint",
          "schema_id": "invoice_number",
          "page": 1,
          "position": [916, 168, 1190, 222],
          "rir_position": [916, 168, 1190, 222],
          "rir_confidence": 0.97657,
          "value": "FV103828806S",
          "validation_sources": ["score"],
          "type": "string"
        },
        {
          "id": "197468",
          "category": "datapoint",
          "schema_id": "date_due",
          "page": 1,
          "position": [938, 618, 1000, 654],
          "rir_position": [940, 618, 1020, 655],
          "rir_confidence": 0.98279,
          "value": "12/22/2018",
          "validation_sources": ["score"],
          "type": "date"
        },
        {
          "id": "197469",
          "category": "datapoint",
          "schema_id": "amount_due",
          "page": 1,
          "position": [1134, 1050, 1190, 1080],
          "rir_position": [1134, 1050, 1190, 1080],
          "rir_confidence": 0.74237,
          "value": "55.20",
          "validation_sources": ["human"],
          "type": "number"
        }
      ]
    },
    {
      "id": "197500",
      "category": "section",
      "schema_id": "line_items_section",
      "children": [
        {
          "id": "197501",
          "category": "multivalue",
          "schema_id": "line_items",
          "children": [
            {
              "id": "198139",
              "category": "tuple",
              "schema_id": "line_item",
              "children": [
                {
                  "id": "198140",
                  "category": "datapoint",
                  "schema_id": "item_desc",
                  "page": 1,
                  "position": [173, 883, 395, 904],
                  "rir_position": null,
                  "rir_confidence": null,
                  "value": "Red Rose",
                  "validation_sources": [],
                  "type": "string"
                },
                {
                  "id": "198142",
                  "category": "datapoint",
                  "schema_id": "item_net_unit_price",
                  "page": 1,
                  "position": [714, 846, 768, 870],
                  "rir_position": null,
                  "rir_confidence": null,
                  "value": "1532.02",
                  "validation_sources": ["human"],
                  "type": "number"
                }
              ]
            }
          ]
        }
      ]
    }
  ]
}

All connector endpoints, representing hooks at particular points in the document lifetime, are simple verbs that receive a JSON POSTed and potentially expect a JSON returned in turn.

The authorization token is passed as an Authorization HTTP header: Authorization: secret_key {authorization_token}

Errors

If a connector does not implement an endpoint, it may return HTTP status 404. An endpoint may fail, returning either HTTP 4xx or HTTP 5xx; for some hooks (like validate and save), this may trigger a user interface message; either the error key of a JSON response is used, or the response body itself in case it is not JSON. The connector hook save can be called in asynchronous (default) as well as synchronous mode (useful for embedded mode).

Data format

The received JSON object contains two keys, meta carrying the metadata and content carrying endpoint-specific content.

The metadata identify the concerned document, containing attributes:

Key	Type	Description
document_url	URL	document URL
arrived_at	timestamp	A time of document arrival in Rossum (ISO 8601)
original_file	URL	Permanent URL for the document original file
original_filename	string	Filename of the document on arrival in Rossum
queue_name	string	Name of the document's queue
workspace_name	string	Name of the document's workspace
organization_name	string	Name of the document's organization
annotation	URL	Annotation URL
queue	URL	Document's queue URL
workspace	URL	Document's workspace URL
organization	URL	Document's organization URL
modifier	URL	Modifier URL
modifier_metadata	object	Client data of the modifier, see metadata
queue_metadata	object	Client data of the queue, see metadata
annotation_metadata	object	Client data of the annotation, see metadata
rir_poll_id	string	Internal extractor processing id
updated_datapoint_ids	list[string]	Ids of objects that were recently modified by user

A common class of content is the annotation tree, which is a JSON object that can contain nested datapoint objects, and matches the schema datapoint tree.

Intermediate nodes have the following structure:

Key	Type	Description
id	integer	A unique id of the given node
schema_id	string	Reference mapping the node to the schema tree
category	string	One of section, multivalue, tuple
children	list	A list of other nodes

Datapoint (leaf) nodes structure contains actual data:

Key	Type	Description
id	integer	A unique id of the given node
schema_id	string	Reference mapping the node to the schema tree
category	string	datapoint
type	string	One of string, date or number, as specified in the schema
value	string	The datapoint value, string represented but normalizes, to that they are machine readable: ISO format for dates, a decimal for numbers
page	integer	A 1-based integer index of the page, optional
position	list[float]	List of four floats describing the x1, y1, x2, y2 bounding box coordinates
rir_position	list[float]	Bounding box of the value as detected by the data extractor. Format is the same as for position.
rir_confidence	float	Confidence (estimated probability) that this field was extracted correctly.

Document lifecycle with a connector

If an asynchronous connector is deployed to a queue, a document status will change from reviewing to exporting and subsequently
to exported or failed_export. If no connector extension is deployed to a queue or if the attribute asynchronous is set to
false, a document status will change from reviewing to exported (or failed_export) directly.

Hook: validate

This hook is called after the document processing has finished, when operator opens a document
in the Rossum verification interface and then everytime after operator updates a field. After the processing is finished, the initial validate hook is marked with initial=true URL parameter. For the other calls, only /validate without the parameter is called.

The request path is fixed to /validate and cannot be changed.

It may:

• validate the given annotation tree and return a list of messages commenting on it (e.g. pointing out errors or showing matched suppliers).
• update the annotation tree by returning a list of replace, add and remove operations

Both the messages and the updated data are shown in the verification interface. Moreover, the messages may block export in the case of errors.

This hook should be fast as it is part of an interactive workflow.

Receives an annotation tree as content.

Example of validate response

{
  "messages": [
    {
      "content": "Invalid invoice number format",
      "id": "197467",
      "type": "error"
    }
  ],
  "operations": [
    {
      "op": "replace",
      "id": "198143",
      "value": {
        "content": {
          "value": "John",
          "position": [103, 110, 121, 122],
          "page": 1
        },
        "hidden": false,
        "options": [],
        "validation_sources": ["human"]
      }
    },
    {
      "op": "remove",
      "id": "884061"
    },
    {
      "op": "add",
      "id": "884060",
      "value": [
        {
          "schema_id": "item_description",
          "content": {
            "page": 1,
            "position": [162, 852, 371, 875],
            "value": "Bottle"
          }
        }
      ]
    }
  ],
  "updated_datapoints": [
    {
      "id": "198142",
      "value": "1532.00"
    }
  ]
}

Returns a JSON object with the following lists: messages, operations and updated_datapoints.

Key messages (required)

The message object contains attributes:

Key	Type	Description
id	integer	Optional unique id of the concerned datapoint; omit for a document-wide issues
type	enum	One of: error, warning or info.
content	string	A descriptive message to be shown to the user

For example, you may use error for fatals like a missing required field, whereas info is suitable to decorate a supplier company id with its name as looked up in the suppliers database.

Key operations (optional)

Allows to specify a sequence of operations that should be performed on particular datapoint objects.

To replace a datapoint value (or other supported attribute), use replace operation:

Key	Type	Description
op	string	Type of operation: replace
id	integer	Datapoint id
value	object	Updated data, format is the same as in Anotation Data. Only value, position, page, validation_sources, hidden and options attributes may be updated.

Please note that section, multivalue and tuple may not be updated.

To add a new row into a multivalue, use add operation:

Key	Type	Description
op	string	Type of operation: add
id	integer	Multivalue id (parent of new datapoint)
value	list[object]	Added row data. List of objects, format of the object is the same as in Anotation Data. schema_id attribute is required, only value, position, page, validation_sources, hidden and options attributes may be set.

The row will be appended to the current list of rows. Please note that only multivalue children datapoints may be added.

To remove a row from a multivalue, use remove operation:

Key	Type	Description
op	string	Type of operation: remove
id	integer	Datapoint id

Please note that only multivalue children datapoints may be removed.

Key updated_datapoints (optional, deprecated)

We also support a simplified version of updates using updated_datapoints response key. It only supports updates (no add or remove operations) and is now deprecated. The updated datapoint object contains attributes:

Key	Type	Description
id	string	A unique id of the concerned datapoint, currently only datapoints of category datapoint can be updated
value	string	New value of the datapoint. Value is formatted according to the datapoint type (e.g. date is string representation of ISO 8601 format).
hidden	boolean	Toggle for hiding/showing of the datapoint, see datapoint
options	list[object]	Options of the datapoint -- valid only for type=enum, see enum options
position	list[float]	New position of the datapoint, list of four numbers.

Validate endpoint should always return 200 OK status.

An error message returned from the connector prevents user from exporting the document.

Hook: save

This hook is called when the invoice transitions from the reviewing state. Connector may process the final document annotation and save it to the target system. It receives an annotation tree as content. The request path is fixed to /save and cannot be changed.

The save hook is called asynchronously (unless synchronous mode is set in related connector object. Timeout of the save hook endpoint is 60 seconds.

The request should return an empty response with 204 No Content status for success.

For graceful failure with error message return 422 Unprocessable Entity or 500 Internal Server Error status with response with same format as in validate hook. If the hook fails with an HTTP error, the document transitions to the failed_export state - it is then available to the operators for manual review and requeuing to the to_review state in the user interface. Requeuing may be done also programmatically via the API using a PATCH call to set to_review annotation status. Patching annotation status to exporting state triggers an export retry.

Webhook Extension

Webhooks are a more lightweight mechanism, used to send simple one-way notifications about specific events, typically associated with object lifecycle, to external components. A webhook is notified when a defined type of webhook event occurs.

For description how to create and manage webhooks, see the Webhook API.

Validating payloads from Rossum

For authorization of payloads, the shared secret method is used. When a secret token is set in webhook.config.secret, Rossum uses it to create a hash signature with each payload. This hash signature is passed along with each request in the headers as X-Elis-Signature.

The goal is to compute a hash using webhook.config.secret and the request body, and ensure that the signature produced by Rossum is the same. Rossum uses HMAC SHA1 signature.

Example of webhook receiver, which verifies the validity of Rossum request

import hashlib
import hmac

from flask import Flask, request, abort

app = Flask(__name__)

SECRET_KEY = "<Your secret key stored in webhook.config.secret>"  # never store this in code

@app.route("/test_webhook", methods=["POST"])
def test_webhook():
    digest = hmac.new(SECRET_KEY.encode(), request.data, hashlib.sha1).hexdigest()
    try:
        prefix, signature = request.headers["X-Elis-Signature"].split("=")
    except ValueError:
        abort(401, "Incorrect header format")

    if not (prefix == "sha1" and hmac.compare_digest(signature, digest)):
        abort(401, "Authorization failed.")
    return 

Webhook Events

Event	Actions	Description
annotation_status	changed	Hook is notified, whenever a status change occurs.

Annotation status data format

Example data sent from Rossum webhook to the address in webhook.config.url

{
  "action": "changed",
  "event": "annotation_status",
  "annotation": {
    "document": "https://api.elis.rossum.ai/v1/documents/314621",
    "id": 314521,
    "queue": "https://api.elis.rossum.ai/v1/queues/8236",
    "schema": "https://api.elis.rossum.ai/v1/schemas/223",
    "pages": [
      "https://api.elis.rossum.ai/v1/pages/551518"
    ],
    "modifier": null,
    "modified_at": null,
    "confirmed_at": null,
    "exported_at": null,
    "assigned_at": null,
    "status": "to_review",
    "previous_status": "importing",
    "rir_poll_id": "54f6b91cfb751289e71ddf12",
    "messages": null,
    "url": "https://api.elis.rossum.ai/v1/annotations/314521",
    "content": "https://api.elis.rossum.ai/v1/annotations/314521/content",
    "time_spent": 0,
    "metadata": {}
  },
  "document": {
    "id": 314621,
    "url": "https://api.elis.rossum.ai/v1/documents/314621",
    "s3_name": "272c2f41ae84a4f19a422cb432a490bb",
    "mime_type": "application/pdf",
    "arrived_at": "2019-02-06T23:04:00.933658Z",
    "original_file_name": "test_invoice_1.pdf",
    "content": "https://api.elis.rossum.ai/v1/documents/314621/content",
    "metadata": {}
  }
}

Key	Type	Description
action	string	Type of action that occurred in the event
event	string	Type of event that occurred
document	object	document object (attribute annotations is excluded)
annotation	object	annotation object (enriched with attribute previous_status)

Custom UI Extension

Sometimes users might want to extend the behavior of UI validation view with something special. That should be the goal of custom UI extensions.

Buttons

Currently, there are two different ways of using a custom button:

1. Popup Button - opens a specific URL in the web browser
2. Validate Button - triggers a standard validate call to connector

If you would like to read more about how to create a button, see the Button schema.

Popup Button

Popup Button opens a website completely managed by the user in a separate tab. It runs in parallel to the validation interface session in the app. Such website can be used for any interface that will assist operators in the reviewing process.

Example Use Cases of Popup Button:

1. opening an email linked to the annotated document
2. creating a new item in external database according to extracted data

Communication with the Validation Interface

Although it is completely possible to query our API from within your popup, direct way of communication with the validation interface may be desired for the sake of simplicity. Such communication uses standard browser API of window.postMessage.

You will need to use window.addEventListeners in order to receive messages from the validation interface:

Once the listener is in place, you can post one of supported message types:

• GET_DATAPOINTS - returns the same tree structure you’d get by requesting annotation data

• FINISH - informs the Rossum app that the popup process is ready to be closed. After this message is posted, popup will be closed and Rossum app will trigger a validate call.

Providing message type to postMessage lets Rossum interface know what operation user requests and determines the type of the answer which could be used to match appropriate response.

Validate button

If popup_url key is missing in button's schema, clicking the button will trigger a standard validate call to connector. In such call, updated_datapoint_ids will contain the ID of the pressed button.

Note: if you’re missing some annotation data that you’d like to receive in a similar way, do contact our support team. We’re collecting feedback to further expand this list.

Embedded Mode

In some use-cases, it is desirable to use only the per-annotation validation view of the Rossum application. Rossum may be integrated with other systems using so-called embedded mode.

In embedded mode, special URL is constructed and then used in iframe or popup browser window to show Rossum annotation view. Some view navigation widgets are hidden (such as home, postpone and delete buttons), so that user is only allowed to update and confirm all field values.

Embedded mode workflow

The host application first uploads a document using standard Rossum API. During this process, an annotation object is created. It is possible to obtain a status of the annotation object and wait for the status to became to_review (ready for checking) using annotation endpoint.

As soon as importing of the annotation object has finished, an authenticated user may call start_embedded endpoint to obtain a URL that is to be included in iframe or popup browser window of the host application. Parameters of the call are return_url and cancel_url that are used to redirect to in a browser when user finishes the annotation.

The URL contains security token that is used by embedded Rossum application to access Rossum API. When the checking of the document has finished, user clicks on done button and host application is notified about finished annotation through save endpoint of the connector HTTP API. By default, this call is made asynchronously, which causes a lag (up to a few seconds) between the click on done button and the call to save endpoint. However, it is possible to switch the calls to synchronous mode by switching the connector asynchronous toggle to false (see connector for reference).

API Reference

For introduction to the Rossum API, see Overview

Most of the API endpoints require user to be authenticated, see Authentication for details.

Organization

Example organization object

{
  "id": 406,
  "url": "https://api.elis.rossum.ai/v1/organizations/406",
  "name": "East West Trading Co",
  "workspaces": [
    "https://api.elis.rossum.ai/v1/workspaces/7540"
  ],
  "users": [
    "https://api.elis.rossum.ai/v1/users/10775"
  ],
  "ui_settings": {},
  "metadata": {}
}

Organization is a basic unit that contains all objects that are required to fully use Rossum platform.

Attribute	Type	Default	Description	Read-only
id	integer		Id of the organization	true
name	string		Name of the organization (not visible in UI)
url	URL		URL of the organization	true
workspaces	list[URL]		List of workspaces objects in the organization	true
users	list[URL]		List of users in the organization	true
ui_settings	object	{}	Organization-wide frontend UI settings (e.g. locales). Rossum internal.
metadata	object	{}	Client data, see metadata.

Create new organization

curl -s -X POST -H 'Content-Type: application/json' \
  -d '{"template_name": "UK Demo Template", "organization_name": "East West Trading Co", "user_fullname": "John Doe", "user_email": "john@east-west-trading.com", "user_password": "owo1aiG9ua9Aihai", "user_ui_settings": { "locale": "en" }, "create_key": "13156106d6f185df24648ac7ff20f64f1c5c06c144927be217189e26f8262c4a"}' \
  'https://api.elis.rossum.ai/v1/organizations/create'

{
  "organization": {
    "id": 105,
    "url": "https://api.elis.rossum.ai/v1/organizations/105",
    "name": "East West Trading Co",
    "workspaces": [
      "https://api.elis.rossum.ai/v1/workspaces/160"
    ],
    "users": [
      "https://api.elis.rossum.ai/v1/users/173"
    ],
    "ui_settings": {},
    "metadata": {}
  }
}

POST /v1/organizations/create

Create new organization and related objects (workspace, queue, user, schema, inbox).

Attribute	Type	Description
template_name	enum	Template to use for new organization (see below)
organization_name	string	Name of the organization. Will be also used as a base for inbox e-mail address.
user_fullname	string	Full user name
user_email	EMAIL	Valid email of the user (also used as Rossum login)
user_password	string	Initial user password
user_ui_settings	object	Initial UI settings, default: {"locale": "en"}
create_key	string	A key that allows to create an organization

You need a create_key in order to create an organization. Please contact support@rossum.ai to obtain one.

Selected template_name affects default schema and extracted fields. Available templates:

Template name	Description
EU Demo Template	VAT invoices with EU-style bank information
US Demo Template	Tax invoices in the US and internationally
UK Demo Template	Also best for India, Canada and Australia
CZ Demo Template	Czech standard invoices
Empty Organization Template	Empty organization, suitable for further customization

Response

Status: 200

Returns object with organization key and organization object value.

List all organizations

List all organizations

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/organizations'

{
  "pagination": {
    "total": 1,
    "total_pages": 1,
    "next": null,
    "previous": null
  },
  "results": [
    {
      "id": 406,
      "url": "https://api.elis.rossum.ai/v1/organizations/406",
      "name": "East West Trading Co",
      "workspaces": [
        "https://api.elis.rossum.ai/v1/workspaces/7540"
      ],
      "users": [
        "https://api.elis.rossum.ai/v1/users/10775"
      ],
      "ui_settings": {},
      "metadata": {}
    }
  ]
}

GET /v1/organizations

Retrieve all organization objects.

Supported filters: id, name

Supported ordering: id, name

Response

Status: 200

Returns paginated response with a list of organization objects. Usually, there would only be one organization.

Retrieve a organization

Get organization object 406

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/organizations/406'

{
  "id": 406,
  "url": "https://api.elis.rossum.ai/v1/organizations/406",
  "name": "East West Trading Co",
  "workspaces": [
    "https://api.elis.rossum.ai/v1/workspaces/7540"
  ],
  "users": [
    "https://api.elis.rossum.ai/v1/users/10775"
  ],
  "ui_settings": {},
  "metadata": {}
}

GET /v1/organizations/{id}

Get an organization object.

Response

Status: 200

Returns organization object.

User

Example user object

{
  "id": 10775,
  "url": "https://api.elis.rossum.ai/v1/users/10775",
  "first_name": "John",
  "last_name": "Doe",
  "email": "john-doe@east-west-trading.com",
  "date_joined": "2018-09-19T13:44:56.000000Z",
  "username": "john-doe@east-west-trading.com",
  "groups": [
    "https://api.elis.rossum.ai/v1/groups/3"
  ],
  "organization": "https://api.elis.rossum.ai/v1/organizations/406",
  "queues": [
    "https://api.elis.rossum.ai/v1/queues/8199"
  ],
  "is_active": true,
  "last_login": "2019-02-07T16:20:18.652253Z",
  "ui_settings": {},
  "metadata": {}
}

A user object represents individual user of Rossum. Every user is assigned to an organization.

A user can be assigned user role (permission groups): viewer, annotator, manager, admin.

User may be assigned to one or more queues and can only access annotations from the assigned queues. This restriction is not applied to admin users, who may access annotations from all queues.

Users cannot be deleted, but can be disabled (set is_active to false). Field email cannot be changed through the API (due to security reasons).

Attribute	Type	Default	Description	Read-only
id	integer		Id of the user	true
url	URL		URL of the user	true
first_name	string		First name of the user
last_name	string		Last name of the user
email	string		Email of the user	true
date_joined	datetime		Date of user join
username	string		Username of a user
groups	list[URL]	[]	List of user role (permission groups)
organization	URL		Related organization
queues	list[URL]	[]	List of queues user is assigned to.
is_active	bool	true	Whether user is enabled or disabled
last_login	datetime		Date of last login
ui_settings	object	{}	User-related frontend UI settings (e.g. locales). Rossum internal.
metadata	object	{}	Client data, see metadata.

List all users

List all users in the organization.

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/users'

{
  "pagination": {
    "total": 1,
    "total_pages": 1,
    "next": null,
    "previous": null
  },
  "results": [
    {
      "id": 10775,
      "url": "https://api.elis.rossum.ai/v1/users/10775",
      "first_name": "John",
      "last_name": "Doe",
      "email": "john-doe@east-west-trading.com",
      "date_joined": "2018-09-19T13:44:56.000000Z",
      "username": "john-doe@east-west-trading.com",
      ...
    }
  ]
}

GET /v1/users

Retrieve all user objects.

Supported filters: id, organization, username, first_name, last_name, email, is_active, last_login, groups, queues

Supported ordering: id, username, first_name, last_name, email, last_login, date_joined

Response

Status: 200

Returns paginated response with a list of user objects.

Create new user

Create new user in organization 406

curl -s -X POST -H 'Content-Type: application/json' -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  -d '{"organization": "https://api.elis.rossum.ai/v1/organizations/406", "username": "jane@east-west-trading.com", "email": "jane@east-west-trading.com", "queues": ["https://api.elis.rossum.ai/v1/queues/8236"], "groups": ["https://api.elis.rossum.ai/v1/groups/2"]}' \
  'https://api.elis.rossum.ai/v1/users'

{
  "id": 10997,
  "url": "https://api.elis.rossum.ai/v1/users/10997",
  "first_name": "",
  "last_name": "",
  "email": "jane@east-west-trading.com",
  "date_joined": "2019-02-09T22:16:38.969904Z",
  "username": "jane@east-west-trading.com",
  "groups": [
    "https://api.elis.rossum.ai/v1/groups/2"
  ],
  "organization": "https://api.elis.rossum.ai/v1/organizations/406",
  "queues": [
    "https://api.elis.rossum.ai/v1/queues/8236"
  ],
  "is_active": true,
  "last_login": null,
  "ui_settings": {}
}

POST /v1/users

Create a new user object.

Response

Status: 201

Returns created user object.

Retrieve a user

Get user object 10997

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/users/10997'

{
  "id": 10997,
  "url": "https://api.elis.rossum.ai/v1/users/10997",
  "first_name": "Jane",
  "last_name": "Bond",
  "email": "jane@east-west-trading.com",
  "date_joined": "2019-02-09T22:16:38.969904Z",
  "username": "jane@east-west-trading.com",
  ...
}

GET /v1/users/{id}

Get a user object.

Response

Status: 200

Returns user object.

Update a user

Update user object 10997

curl -s -X PUT -H 'Content-Type: application/json' -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  -d '{"organization": "https://api.elis.rossum.ai/v1/organizations/406", "username": "jane@east-west-trading.com", "queues": ["https://api.elis.rossum.ai/v1/queues/8236"], "groups": ["https://api.elis.rossum.ai/v1/groups/2"], "first_name": "Jane"}' \
  'https://api.elis.rossum.ai/v1/users/10997'

{
  "id": 10997,
  "url": "https://api.elis.rossum.ai/v1/users/10997",
  "first_name": "Jane",
  "last_name": "",
  "email": "jane@east-west-trading.com",
  ...
}

PUT /v1/users/{id}

Update user object.

Response

Status: 200

Returns updated user object.

Update part of a user

Update first_name of user object 10997

curl -X PATCH -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' -H 'Content-Type: application/json' \
  -d '{"first_name": "Emma"}' \
  'https://api.elis.rossum.ai/v1/users/10997'

{
  "id": 10997,
  "url": "https://api.elis.rossum.ai/v1/users/10997",
  "first_name": "Emma",
  "last_name": "",
  ...
}

PATCH /v1/users/{id}

Update part of user object.

Response

Status: 200

Returns updated user object.

Password

Due to security reasons, user passwords cannot be set directly using the standard CRUD operations. Instead, the following endpoints can be used for resetting and changing passwords.

Change password

Change password of user object 10997

curl -X POST -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' -H 'Content-Type: application/json' \
  -d '{"new_password1": "new_password", "new_password2": "new_password", "old_password": "old_password"}' \
  'https://api.elis.rossum.ai/v1/auth/password/change'

{
  "id": 10997,
  "url": "https://api.elis.rossum.ai/v1/users/10997",
  ...
}

POST /v1/auth/password/change

Change password of current user.

Response

Status: 200

Returns user object.

Reset password

Reset password of a user with username jane@east-west-trading.com

curl -X POST -H 'Content-Type: application/json' \
  -d '{"username": "jane@east-west-trading.com"}' \
  'https://api.elis.rossum.ai/v1/auth/password/reset'

{"detail": "Password reset e-mail has been sent."}

POST /v1/auth/password/reset

Reset password to a users specified by their usernames. The users are sent an email with a verification URL leading to web form, where they can set their password.

Response

Status: 200

User Role

Example role object

{
  "id": 3,
  "url": "https://api.elis.rossum.ai/v1/groups/3",
  "name": "admin"
}

User role is a group of permissions that are assigned to the user. Permissions are assigned to individual operations on objects.

Attribute	Type	Default	Description	Read-only
id	integer		Id of the user role	true
url	URL		URL of the user role	true
name	string		Name oft the user role	true

There are three pre-defined roles:

Role	Description
viewer	Read-only user, cannot change any API object. May be useful for automated data export or auditor access.
annotator	User that is allowed to change annotation, its datapoints and import a document.
manager	In addition to permissions of annotator the user is also allowed to access usage-reports.
admin	User can modify API objects to set-up organization (e.g. workspaces, queues, schemas)

User can only access annotations from queues it is assigned to, with the exception of admin role that can access any queue.

Permissions assigned to the role cannot be changed through the API.

List all user roles

List all user roles (groups)

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/groups'

{
  "pagination": {
    "total": 3,
    "total_pages": 1,
    "next": null,
    "previous": null
  },
  "results": [
    {
      "url": "https://api.elis.rossum.ai/v1/groups/1",
      "name": "viewer"
    },
    {
      "url": "https://api.elis.rossum.ai/v1/groups/2",
      "name": "annotator"
    },
    {
      "url": "https://api.elis.rossum.ai/v1/groups/3",
      "name": "admin"
    }
  ]
}

GET /v1/groups

Retrieve all organization objects.

Supported filters: name

Supported ordering: name

Response

Status: 200

Returns paginated response with a list of group objects.

Retrieve a user role

Get group object 2

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/groups/2'

{
  "url": "https://api.elis.rossum.ai/v1/groups/2",
  "name": "annotator"
}

GET /v1/groups/{id}

Get a user role object.

Response

Status: 200

Returns group object.

Workspace

Example workspace object

{
  "id": 7540,
  "name": "East West Trading Co",
  "url": "https://api.elis.rossum.ai/v1/workspaces/7540",
  "autopilot": true,
  "organization": "https://api.elis.rossum.ai/v1/organizations/406",
  "queues": [
    "https://api.elis.rossum.ai/v1/queues/8199",
    "https://api.elis.rossum.ai/v1/queues/8236"
  ],
  "metadata": {}
}

A workspace object is a container of queue objects.

Attribute	Type	Default	Description	Read-only
id	integer		Id of the workspace	true
name	string		Name of the workspace
url	URL		URL of the workspace	true
autopilot	bool	false	Whether to automatically confirm datapoints (hide eyes) from previously seen annotations
organization	URL		Related organization
queues	list[URL]	[]	List of queues that belongs to the workspace	true
metadata	object	{}	Client data, see metadata.

List all workspaces

List all workspaces

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/workspaces'

{
  "pagination": {
    "total": 1,
    "total_pages": 1,
    "next": null,
    "previous": null
  },
  "results": [
    {
      "id": 7540,
      "name": "East West Trading Co",
      "url": "https://api.elis.rossum.ai/v1/workspaces/7540",
      "autopilot": true,
      "organization": "https://api.elis.rossum.ai/v1/organizations/406",
      "queues": [
        "https://api.elis.rossum.ai/v1/queues/8199",
        "https://api.elis.rossum.ai/v1/queues/8236"
      ],
      "metadata": {}
    }
  ]
}

GET /v1/workspaces

Retrieve all workspace objects.

Supported filters: id, name, organization, autopilot

Supported ordering: id, name

Response

Status: 200

Returns paginated response with a list of workspace objects.

Create a new workspace

Create new workspace in organization 406 named Test Workspace

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' -H 'Content-Type: application/json' \
  -d '{"name": "Test Workspace", "organization": "https://api.elis.rossum.ai/v1/organizations/406"}' \
  'https://api.elis.rossum.ai/v1/workspaces'

{
  "id": 7694,
  "name": "Test Workspace",
  "url": "https://api.elis.rossum.ai/v1/workspaces/7694",
  "autopilot": false,
  "organization": "https://api.elis.rossum.ai/v1/organizations/406",
  "queues": [],
  "metadata": {}
}

POST /v1/workspaces

Create a new workspace object.

Response

Status: 201

Returns created workspace object.

Retrieve a workspace

Get workspace object 7694

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/workspaces/7694'

{
  "id": 7694,
  "name": "Test Workspace",
  "url": "https://api.elis.rossum.ai/v1/workspaces/7694",
  "autopilot": false,
  "organization": "https://api.elis.rossum.ai/v1/organizations/406",
  "queues": [],
  "metadata": {}
}

GET /v1/workspaces/{id}

Get an workspace object.

Response

Status: 200

Returns workspace object.

Update a workspace

Update workspace object 7694

curl -X PUT -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' -H 'Content-Type: application/json' \
  -d '{"name": "My Workspace", "organization": "https://api.elis.rossum.ai/v1/organizations/406"}' \
  'https://api.elis.rossum.ai/v1/workspaces/7694'

{
  "id": 7694,
  "name": "My Workspace",
  "url": "https://api.elis.rossum.ai/v1/workspaces/7694",
  "autopilot": false,
  "organization": "https://api.elis.rossum.ai/v1/organizations/406",
  "queues": [],
  "metadata": {}
}

PUT /v1/workspaces/{id}

Update workspace object.

Response

Status: 200

Returns updated workspace object.

Update part of a workspace

Update name of workspace object 7694

curl -X PATCH -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' -H 'Content-Type: application/json' \
  -d '{"name": "Important Workspace"}' \
  'https://api.elis.rossum.ai/v1/workspaces/7694'

{
  "id": 7694,
  "name": "Important Workspace",
  "url": "https://api.elis.rossum.ai/v1/workspaces/7694",
  "autopilot": false,
  "organization": "https://api.elis.rossum.ai/v1/organizations/406",
  "queues": [],
  "metadata": {}
}

PATCH /v1/workspaces/{id}

Update part of workspace object.

Response

Status: 200

Returns updated workspace object.

Delete a workspace

Delete workspace 7694

curl -X DELETE -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/workspaces/7694'

DELETE /v1/workspaces/{id}

Delete workspace object.

Response

Status: 204

Queue

Example queue object

{
  "id": 8198,
  "name": "Received invoices",
  "url": "https://api.elis.rossum.ai/v1/queues/8198",
  "workspace": "https://api.elis.rossum.ai/v1/workspaces/7540",
  "connector": null,
  "webhooks": [],
  "schema": "https://api.elis.rossum.ai/v1/schemas/31336",
  "inbox": "https://api.elis.rossum.ai/v1/inboxes/1229",
  "users": [
    "https://api.elis.rossum.ai/v1/users/10775"
  ],
  "session_timeout": "01:00:00",
  "rir_url": "https://all.rir.rossum.ai",
  "rir_params": null,
  "counts": {
    "importing": 0,
    "split": 0,
    "failed_import": 0,
    "to_review": 2,
    "reviewing": 0,
    "exporting": 0,
    "postponed": 0,
    "failed_export": 0,
    "exported": 0,
    "deleted": 0,
    "purged": 0
  },
  "default_score_threshold": null,
  "automation_enabled": false,
  "automation_level": "never",
  "preserve_annotation_schema": false,
  "locale": "en_US",
  "metadata": {},
  "settings": {"columns": [{"schema_id": "tags"}]},
}

A queue object represents a basic organization unit of annotations. Annotations are imported to a queue either through a REST API upload endpoint or by sending an email to a related inbox. Export is also performed on a queue using export endpoint.

Queue also specifies a schema for annotations and a connector.

Annotators and viewers only see queues they are assigned to.

Attribute	Type	Default	Description	Read-only
id	integer		Id of the queue	true
name	string		Name of the queue
url	URL		URL of the queue	true
workspace	URL		Workspace in which the queue should be placed
connector	URL	null	Connector associated with the queue
webhooks	list[URL]	[]	Webhooks associated with the queue
schema	URL		Schema which will be applied to annotations in this queue
inbox	URL	null	Inbox for import to this queue
users	list[URL]	[]	Users associated with this queue
session_timeout	timedelta	1 hour	Time before annotation will be returned from revieving status to to_review
rir_url	URL	null	URL representing the particular AI Core Engine variant used for document processing. Usually https://all.rir.rossum.ai, will vary for custom model training users.
rir_params	string	null	URL parameters to be passed to the AI Core Engine, see below
counts	object		Count of annotations per status	true
default_score_threshold	float [0;1]	null	Threshold used to automatically validate field content based on AI confidence scores. If not set, global default 0.975 is used.
automation_enabled	bool	false	Toggle for switching automation on/off
automation_level	string	never	Set level of automation, see Automation level.
preserve_annotation_schema	bool	false (true since February 1, 2020)	Whether to preserve annotation.schema (not updating to the queue.schema whenever queue.schema is replaced)
locale	string	en_GB	Typical originating region of documents processed in this queue specified in the locale format, see below.
metadata	object	{}	Client data, see metadata.
settings	object	{}	Queue settings object contains schema ids list to be shown on a dashboard.

More specific AI Core Engine parameters influencing the extraction may be set using rir_params field. So far, these parameters are publicly available:

• effective_page_count (int): Limits the extraction to the first effective_page_count pages of the document.

  • Useful to prevent data extraction from additional pages of unrelated, but included documents.
  • Default: total number of pages in the document.

• tables (boolean): Allows disabling line item data extraction.

  • Useful to speed up data extraction when line item details are not required, especially on long documents with large tables.
  • Default: true (line items are being extracted).

The locale field is a hint for the AI Core Engine on how to resolve some ambiguous cases during data extraction, concerning e.g. date formats or decimal separators that may depend on the locale. For example, in US the typical date format is mm/dd/yyyy whilst in Europe it is dd.mm.yyyy. A date such as "12. 6. 2018" will be extracted as Jun 12 when locale is en_GB, while the same date will be extracted as Dec 6 when locale is en_US.

Automation level

With queue attribute automation_level you can set at which circumstances should be annotation auto-exported after the AI-based data extraction, without validation in the UI (skipping the to_review and reviewing state).

Attribute can have following options:

Automation level	Description
always	Auto-export all documents with no validation errors. When there is an error triggered for a non-required field, such values are deleted and export is re-tried.
confident	Auto-export documents with at least one validation source and no validation errors.
never	Annotation is not automatically exported and must be validated in UI manually.

Import a document

Upload file using a form (multipart/form-data)

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  -F content=@document.pdf \
  'https://api.elis.rossum.ai/v1/queues/8236/upload'

Upload file in a request body

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  -H 'Content-Disposition: attachment; filename=document.pdf' --data-binary @file.pdf \
  'https://api.elis.rossum.ai/v1/queues/8236/upload'

Upload file in a request body with a filename in URL

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  --data-binary @file.pdf \
  'https://api.elis.rossum.ai/v1/queues/8236/upload/document.pdf'

Upload multiple files using multipart/form-data

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  -F content=@document1.pdf -F content=@document2.pdf \
  'https://api.elis.rossum.ai/v1/queues/8236/upload'

Upload file using basic authentication

curl -u 'east-west-trading-co@elis.rossum.ai:secret' \
  -F content=@document.pdf \
  'https://api.elis.rossum.ai/v1/queues/8236/upload'

Upload file with additional field values

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  -F content=@document.pdf \
  -F values='{"upload:organization_unit":"Sales"}' \
  'https://api.elis.rossum.ai/v1/queues/8236/upload'

POST /v1/queues/{id}/upload

POST /v1/queues/{id}/upload/{filename}

Uploads a document to the queue (starting in the importing state). This creates a document object and an empty annotation object.

The file can be sent as a part of multipart/form-data or, alternatively, in the request body. Multiple files upload is supported, the total size of the data uploaded may not exceed 40 MB.

You can also specify additional values passed using values form field. It may be used to initialize datapoint values by setting the value of rir_field_names in the schema.

For example upload:organization_unit field may be referenced in a schema like this:

   {
     "category": "datapoint",
     "id": "organization_unit",
     "label": "Org unit",
     "type": "string",
     "rir_field_names": ["upload:organization_unit"]
     ...
   }

Upload endpoint also supports basic authentication to enable easy integration with third-party systems.

Response

Status: 200

Response contains a list of annotations and documents created. Top-level keys annotation and document are obsolete and should be ignored.

Example upload response

{
  "results": [
    {
      "annotation": "https://api.elis.rossum.ai/v1/annotations/315509",
      "document": "https://api.elis.rossum.ai/v1/documents/315609"
    },
    {
      "annotation": "https://api.elis.rossum.ai/v1/annotations/315510",
      "document": "https://api.elis.rossum.ai/v1/documents/315610"
    }
  ],
  "annotation": "https://api.elis.rossum.ai/v1/annotations/315509",
  "document": "https://api.elis.rossum.ai/v1/documents/315609"
}

Export annotations

Download CSV file with selected columns from annotations 315777 and 315778.

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/queues/8236/export?format=csv&columns=meta_file_name,invoice_id,date_issue,sender_name,amount_total&id=315777,315778'

meta_file_name,Invoice number,Invoice Date,Sender Name,Total amount
template_invoice.pdf,12345,2017-06-01,"Peter, Paul and Merry",900.00
quora.pdf,2183760194,2018-08-06,"Quora, Inc",500.00

Download CSV file with prepend_columns and append_columns from annotations 315777 and 315778.

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/queues/8236/export?format=csv&prepend_columns=meta_file_name&append_columns=meta_url&id=315777,315778'

meta_file_name,Invoice number,Invoice Date,Sender Name,Total amount,meta_url
template_invoice.pdf,12345,2017-06-01,"Peter, Paul and Merry",900.00,https://api.elis.rossum.ai/v1/annotations/315777
quora.pdf,2183760194,2018-08-06,"Quora, Inc",500.00,https://api.elis.rossum.ai/v1/annotations/315778

Download CSV file for a specific page when downloading large amounts of data.

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/queues/8236/export?format=csv&status=exported&page=1&page_size=1000'

Download XML file with all exported annotations

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/queues/8236/export?format=xml&status=exported'

<?xml version="1.0" encoding="utf-8"?>
<export>
  <results>
    <annotation url="https://api.elis.rossum.ai/v1/annotations/315777">
      <status>exported</status>
      <arrived_at>2019-10-13T21:33:01.509886Z</arrived_at>
      <exported_at>2019-10-13T12:00:01.000133Z</exported_at>
      <document url="https://api.elis.rossum.ai/v1/documents/315877">
        <file_name>template_invoice.pdf</file_name>
        <file>https://api.elis.rossum.ai/v1/documents/315877/content</file>
      </document>
      <modifier/>
      <schema url="https://api.elis.rossum.ai/v1/schemas/31336"/>
      <metadata/>
      <content>
        <section schema_id="invoice_details_section">
          <datapoint schema_id="invoice_id" type="string" rir_confidence="0.99">12345</datapoint>
          ...
        </section>
      </content>
    </annotation>
  </results>
  <pagination>
    <next/>
    <previous/>
    <total>1</total>
    <total_pages>1</total_pages>
  </pagination>
</export>

Download JSON file with all exported annotations that were imported on October 13th 2019.

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/queues/8236/export?format=json&status=exported&arrived_at_after=2019-10-13&arrived_at_before=2019-10-14'

{
  "pagination": {
    "total": 5,
    "total_pages": 1,
    "next": null,
    "previous": null
  },
  "results": [
    {
      "url": "https://api.elis.rossum.ai/v1/annotations/315777",
      "status": "exported",
      "arrived_at": "2019-10-13T21:33:01.509886Z",
      "exported_at": "2019-10-14T12:00:01.000133Z",
      "document": {
        "url": "https://api.elis.rossum.ai/v1/documents/315877",
        "file_name": "template_invoice.pdf",
        "file": "https://api.elis.rossum.ai/v1/documents/315877/content"
      },
      "modifier": null,
      "schema": {
        "url": "https://api.elis.rossum.ai/v1/schemas/31336"
      },
      "metadata": {},
      "content": [
        {
          "category": "section",
          "schema_id": "invoice_details_section",
          "children": [
            {
              "category": "datapoint",
              "schema_id": "invoice_id",
              "value": "12345",
              "type": "string",
              "rir_confidence": 0.99
            },
            ...
          ]
        }
      ]
    }
  ]
}

GET /v1/queues/{id}/export

Export annotations from the queue in XML, CSV or JSON format.

Output format is negotiated by Accept header or format parameter. Supported formats are: csv, xml, xlsx and json.

Filters

Filters may be specified to limit annotations to be exported, all filters applicable to the annotation list are supported. Multiple filter attributes are combined with AND, which results in more specific response.

The most common filters are either list of ids or specifying a time period:

Attribute	Description
id	Id of annotation to be exported, multiple ids may be separated by a comma.
status	Annotation status
modifier	User id
arrived_at_before	ISO 8601 timestamp (e.g. arrived_at_before=2019-11-15)
arrived_at_after	ISO 8601 timestamp (e.g. arrived_at_after=2019-11-14)
exported_at_before	ISO 8601 timestamp (e.g. exported_at_before=2019-11-14 22:00:00)
exported_at_after	ISO 8601 timestamp (e.g. exported_at_after=2019-11-14 12:00:00)
page_size	Number of the documents to be exported. To be used together with page attribute. See pagination.
page	Number of a page to be exported when using pagination. Useful for exports

of large amounts of data. To be used together with the page_size attribute.

Response

Status: 200

Returns paginated response that contains annotation data in one of the following format.

CSV

Columns included in CSV output are defined by columns, prepend_columns and append_columns URL parameters. prepend_columns parameter defines columns at the beginning of the row while append_columns at the end. All stated parameters are specified by datapoint schema ids and meta-columns. Default is to export all fields defined in a schema.

Supported meta-columns are: meta_arrived_at, meta_file, meta_file_name, meta_status, meta_url.

XLSX

XLSX export behaves exactly same as CSV export, including URL parameters. The only difference is output format.

XML

XML format is described by XML Schema Definition queues_export.xsd.

JSON

JSON format uses format similar to the XML format above.

List all queues

List all queues in workspace 7540 ordered by name

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/queues?workspace=7540&ordering=name'

{
  "pagination": {
    "total": 2,
    "total_pages": 1,
    "next": null,
    "previous": null
  },
  "results": [
    {
      "id": 8199,
      "name": "Receipts",
      "url": "https://api.elis.rossum.ai/v1/queues/8199",
      "workspace": "https://api.elis.rossum.ai/v1/workspaces/7540",
      ...
    },
    {
      "id": 8198,
      "name": "Received invoices",
      "url": "https://api.elis.rossum.ai/v1/queues/8198",
      "workspace": "https://api.elis.rossum.ai/v1/workspaces/7540",
      ...
    }
  ]
}

GET /v1/queues

Retrieve all queue objects.

Supported ordering: id, name, workspace, connector, webhooks, schema, inbox, locale

Filters

Attribute	Description
id	Id of a queue
name	Name of a queue
workspace	Id of a workspace
inbox	Id of an inbox
connector	Id of a connector
webhooks	Ids of webhooks
locale	Queue object locale

Response

Status: 200

Returns paginated response with a list of queue objects.

Create new queue

Create new queue in workspace 7540 named Test Queue

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' -H 'Content-Type: application/json' \
  -d '{"name": "Test Queue", "workspace": "https://api.elis.rossum.ai/v1/workspaces/7540", "schema": "https://api.elis.rossum.ai/v1/schemas/31336"}' \
  'https://api.elis.rossum.ai/v1/queues'

{
  "id": 8236,
  "name": "Test Queue",
  "url": "https://api.elis.rossum.ai/v1/queues/8236",
  "workspace": "https://api.elis.rossum.ai/v1/workspaces/7540",
  ...
}

POST /v1/queues

Create a new queue object.

Response

Status: 201

Returns created queue object.

Retrieve a queue

Get queue object 8198

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/queues/8198'

{
  "id": 8198,
  "name": "Received invoices",
  "url": "https://api.elis.rossum.ai/v1/queues/8198",
  "workspace": "https://api.elis.rossum.ai/v1/workspaces/7540",
  ...
}

GET /v1/queues/{id}

Get a queue object.

Response

Status: 200

Returns queue object.

Update a queue

Update queue object 8236

curl -X PUT -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' -H 'Content-Type: application/json' \
  -d '{"name": "My Queue", "workspace": "https://api.elis.rossum.ai/v1/workspaces/7540", "schema": "https://api.elis.rossum.ai/v1/schemas/31336"}' \
  'https://api.elis.rossum.ai/v1/queues/8236'

{
  "id": 8236,
  "name": "My Queue",
  "url": "https://api.elis.rossum.ai/v1/queues/8236",
  "workspace": "https://api.elis.rossum.ai/v1/workspaces/7540",
  ...
}

PUT /v1/queues/{id}

Update queue object.

Response

Status: 200

Returns updated queue object.

Update part of a queue

Update name of queue object 8236

curl -X PATCH -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' -H 'Content-Type: application/json' \
  -d '{"name": "New Queue"}' \
  'https://api.elis.rossum.ai/v1/queues/8236'

{
  "id": 8236,
  "name": "New Queue",
  "url": "https://api.elis.rossum.ai/v1/queues/8236",
  "workspace": "https://api.elis.rossum.ai/v1/workspaces/7540",
  ...
}

PATCH /v1/queues/{id}

Update part of queue object.

Response

Status: 200

Returns updated queue object.

Delete a queue

Delete queue 8236

curl -X DELETE -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/queues/8236'

DELETE /v1/queues/{id}

Delete queue object.

Response

Status: 204

Assign annotation

POST /v1/queues/{id}/next

Assign calling user an available annotation from the queue.

This endpoint is INTERNAL and may change in the future.

Inbox

Example inbox object

{
  "id": 1234,
  "name": "Receipts",
  "url": "https://api.elis.rossum.ai/v1/inboxes/1234",
  "queues": [
    "https://api.elis.rossum.ai/v1/queues/8199"
  ],
  "email": "east-west-trading-co-a34f3a@elis.rossum.ai",
  "email_prefix": "east-west-trading-co",
  "bounce_email_to": "bounces@east-west.com",
  "bounce_unprocessable_attachments": false,
  "bounce_deleted_annotations": false,
  "metadata": {}
}

An inbox object enables email ingestion to a related queue. We enforce email domain to match Rossum domain (e.g. elis.rossum.ai). email_prefix may be used to construct unique email address.

Attribute	Type	Default	Description	Read-only
id	integer		Id of the inbox	true
name	string		Name of the inbox (not visible in UI)
url	URL		URL of the inbox	true
queues	list[URL]		List of queues that receive documents from inbox. Usually there is one inbox per queue.
email	EMAIL		Rossum email address (e.g. east-west-trading-co-a34f3a@elis.rossum.ai)
email_prefix	string		Rossum email address prefix (e.g. east-west-trading-co)
bounce_email_to	EMAIL		Email address to send notifications to (e.g. about failed import).
bounce_unprocessable_attachments	bool	false	Whether return back unprocessable attachments (e.g. MS Word docx) or just silently ignore them.
bounce_postponed_annotations	bool	false	Whether to send notification when annotation is postponed.
bounce_deleted_annotations	bool	false	Whether to send notification when annotation is deleted.
metadata	object	{}	Client data, see metadata.

List all inboxes

List all inboxes

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/inboxes'

{
  "pagination": {
    "total": 2,
    "total_pages": 1,
    "next": null,
    "previous": null
  },
  "results": [
    {
      "id": 1234,
      "name": "Receipts",
      "url": "https://api.elis.rossum.ai/v1/inboxes/1234",
      "queues": [
        "https://api.elis.rossum.ai/v1/queues/8199"
      ],
      "email": "east-west-trading-co-recepits@elis.rossum.ai",
      "email_prefix": "east-west-trading-co-recepits",
      "bounce_email_to": "bounces@east-west.com",
      "bounce_unprocessable_attachments": false,
      "bounce_deleted_annotations": false,
      "metadata": {}
    },
    {
      "id": 1244,
      "name": "Beta Inbox",
      "url": "https://api.elis.rossum.ai/v1/inboxes/1244",
      "queues": [
        "https://api.elis.rossum.ai/v1/queues/8236"
      ],
      "email": "east-west-trading-co-beta@elis.rossum.ai",
      "email_prefix": "east-west-trading-co-beta",
      "bounce_email_to": "bill@east-west.com",
      "bounce_unprocessable_attachments": false,
      "bounce_deleted_annotations": false,
      "metadata": {}
    }
  ]
}

GET /v1/inboxes

Retrieve all inbox objects.

Supported filters: id, name, email, email_prefix, bounce_email_to, bounce_unprocessable_attachments, bounce_postponed_annotations, bounce_deleted_annotations

Supported ordering: id, name, email, email_prefix, bounce_email_to

Response

Status: 200

Returns paginated response with a list of inbox objects.

Create a new inbox

Create new inbox related to queue 8236 named Test Inbox

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' -H 'Content-Type: application/json' \
  -d '{"name": "Test Inbox", "email_prefix": "east-west-trading-co-test", "bounce_email_to": "joe@east-west-trading.com", "queues": ["https://api.elis.rossum.ai/v1/queues/8236"]}' \
  'https://api.elis.rossum.ai/v1/inboxes'

{
  "id": 1244,
  "name": "Test Inbox",
  "url": "https://api.elis.rossum.ai/v1/inboxes/1244",
  "queues": [
    "https://api.elis.rossum.ai/v1/queues/8236"
  ],
  "email": "east-west-trading-co-test-b21e3a@elis.rossum.ai",
  "email_prefix": "east-west-trading-co-test",
  "bounce_email_to": "joe@east-west-trading.com",
  "bounce_unprocessable_attachments": false,
  "bounce_postponed_annotations": false,
  "bounce_deleted_annotations": false,
  "metadata": {}
}

POST /v1/inboxes

Create a new inbox object.

Response

Status: 201

Returns created inbox object.

Retrieve a inbox

Get inbox object 1244

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/inboxes/1244'

{
  "id": 1244,
  "name": "Test Inbox",
  "url": "https://api.elis.rossum.ai/v1/inboxes/1244",
  "queues": [
    "https://api.elis.rossum.ai/v1/queues/8236"
  ],
  "email": "east-west-trading-co-beta@elis.rossum.ai",
  ...
}

GET /v1/inboxes/{id}

Get an inbox object.

Response

Status: 200

Returns inbox object.

Update a inbox

Update inbox object 1244

curl -X PUT -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' -H 'Content-Type: application/json' \
  -d '{"name": "Shiny Inbox", "email": "east-west-trading-co-test@elis.rossum.ai", "bounce_email_to": "jack@east-west-trading.com", "queues": ["https://api.elis.rossum.ai/v1/queues/8236"]}' \
  'https://api.elis.rossum.ai/v1/inboxes/1244'

{
  "id": 1244,
  "name": "Shiny Inbox",
  "url": "https://api.elis.rossum.ai/v1/inboxes/1244",
  "queues": [
    "https://api.elis.rossum.ai/v1/queues/8236"
  ],
  "email": "east-west-trading-co-test@elis.rossum.ai",
  "bounce_email_to": "jack@east-west-trading.com",
  ...
}

PUT /v1/inboxes/{id}

Update inbox object.

Response

Status: 200

Returns updated inbox object.

Update part of a inbox

Update email of inbox object 1244

curl -X PATCH -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' -H 'Content-Type: application/json' \
  -d '{"name": "Common Inbox"}' \
  'https://api.elis.rossum.ai/v1/inboxes/1244'

{
  "id": 1244,
  "name": "Common Inbox",
  ...
}

PATCH /v1/inboxes/{id}

Update part of inbox object.

Response

Status: 200

Returns updated inbox object.

Delete a inbox

Delete inbox 1244

curl -X DELETE -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/inboxes/1244'

DELETE /v1/inboxes/{id}

Delete inbox object.

Response

Status: 204

Connector

Example connector object

{
  "id": 1500,
  "name": "MyQ Connector",
  "queues": [
    "https://api.elis.rossum.ai/v1/queues/8199"
  ],
  "url": "https://api.elis.rossum.ai/v1/connectors/1500",
  "service_url": "https://myq.east-west-trading.com",
  "params": "strict=true",
  "authorization_token": "wuNg0OenyaeK4eenOovi7aiF",
  "asynchronous": true,
  "metadata": {}
}

A connector is an extension of Rossum that allows to validate and modify data during validation and also export data to an external system. A connector object is used to configure external or internal endpoint of such an extension service. For more information see Extensions.

Attribute	Type	Default	Description	Read-only
id	integer		Id of the connector	true
name	string		Name of the connector (not visible in UI)
url	URL		URL of the connector	true
queues	list[URL]		List of queues that use connector object.
service_url	URL		URL of the connector endpoint
params	string		Query params appended to the service_url
authorization_token	string		Token sent to connector in Authorization: secret_key {authorization_token} header to ensure connector was contacted by Rossum (displayed only to admin user).
asynchronous	bool	true	Affects exporting: when true, confirm endpoint returns immediately and connector's save endpoint is called asynchronously later on.
metadata	object	{}	Client data, see metadata.

List all connectors

List all connectors

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/connectors'

{
  "pagination": {
    "total": 1,
    "total_pages": 1,
    "next": null,
    "previous": null
  },
  "results": [
    {
      "id": 1500,
      "name": "MyQ Connector",
      "queues": [
        "https://api.elis.rossum.ai/v1/queues/8199"
      ],
      "url": "https://api.elis.rossum.ai/v1/connectors/1500",
      "service_url": "https://myq.east-west-trading.com",
      "params": "strict=true",
      "authorization_token": "wuNg0OenyaeK4eenOovi7aiF",
      "asynchronous": true,
      "metadata": {}
    }
  ]
}

GET /v1/connectors

Retrieve all connector objects.

Supported filters: id, name, service_url

Supported ordering: id, name, service_url

Response

Status: 200

Returns paginated response with a list of connector objects.

Create a new connector

Create new connector related to queue 8199 with endpoint URL https://myq.east-west-trading.com

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' -H 'Content-Type: application/json' \
  -d '{"name": "MyQ Connector", "queues": ["https://api.elis.rossum.ai/v1/queues/8199"], "service_url": "https://myq.east-west-trading.com", "authorization_token":"wuNg0OenyaeK4eenOovi7aiF"}' \
  'https://api.elis.rossum.ai/v1/connectors'

{
  "id": 1500,
  "name": "MyQ Connector",
  "queues": [
    "https://api.elis.rossum.ai/v1/queues/8199"
  ],
  "url": "https://api.elis.rossum.ai/v1/connectors/1500",
  "service_url": "https://myq.east-west-trading.com",
  "params": null,
  "authorization_token": "wuNg0OenyaeK4eenOovi7aiF",
  "asynchronous": true,
  "metadata": {}
}

POST /v1/connectors

Create a new connector object.

Response

Status: 201

Returns created connector object.

Retrieve a connector

Get connector object 1500

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/connectors/1500'

{
  "id": 1500,
  "name": "MyQ Connector",
  "queues": [
    "https://api.elis.rossum.ai/v1/queues/8199"
  ],
  "url": "https://api.elis.rossum.ai/v1/connectors/1500",
  "service_url": "https://myq.east-west-trading.com",
  "params": null,
  "authorization_token": "wuNg0OenyaeK4eenOovi7aiF",
  "asynchronous": true,
  "metadata": {}
}

GET /v1/connectors/{id}

Get an connector object.

Response

Status: 200

Returns connector object.

Update a connector

Update connector object 1500

curl -X PUT -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' -H 'Content-Type: application/json' \
  -d '{"name": "MyQ Connector (stg)", "queues": ["https://api.elis.rossum.ai/v1/queues/8199"], "service_url": "https://myq.stg.east-west-trading.com", "authorization_token":"wuNg0OenyaeK4eenOovi7aiF"} \
  'https://api.elis.rossum.ai/v1/connectors/1500'

{
  "id": 1500,
  "name": "MyQ Connector (stg)",
  "queues": [
    "https://api.elis.rossum.ai/v1/queues/8199"
  ],
  "url": "https://api.elis.rossum.ai/v1/connectors/1500",
  "service_url": "https://myq.stg.east-west-trading.com",
  "params": null,
  "authorization_token": "wuNg0OenyaeK4eenOovi7aiF",
  "asynchronous": true,
  "metadata": {}
}

PUT /v1/connectors/{id}

Update connector object.

Response

Status: 200

Returns updated connector object.

Update part of a connector

Update connector URL of connector object 1500

curl -X PATCH -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' -H 'Content-Type: application/json' \
  -d '{"service_url": "https://myq.stg2.east-west-trading.com"}' \
  'https://api.elis.rossum.ai/v1/connectors/1500'

{
  "id": 1500,
  "name": "MyQ Connector",
  "queues": [
    "https://api.elis.rossum.ai/v1/queues/8199"
  ],
  "url": "https://api.elis.rossum.ai/v1/connectors/1500",
  "service_url": "https://myq.stg2.east-west-trading.com",
  "params": null,
  "authorization_token": "wuNg0OenyaeK4eenOovi7aiF",
  "asynchronous": true,
  "metadata": {}
}

PATCH /v1/connectors/{id}

Update part of connector object.

Response

Status: 200

Returns updated connector object.

Delete a connector

Delete connector 1500

curl -X DELETE -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/connectors/1500'

DELETE /v1/connectors/{id}

Delete connector object.

Response

Status: 204

Webhook

Example webhook object

{
  "id": 1500,
  "url": "https://api.elis.rossum.ai/v1/webhooks/1500",
  "name": "Change of Status",
  "metadata": {},
  "queues": [
     "https://api.elis.rossum.ai/v1/queues/8199",
     "https://api.elis.rossum.ai/v1/queues/8191"
  ],
  "active": true,
  "events": [
    "annotation_status"
  ],
  "config": {
    "url": "https://myq.east-west-trading.com/api/hook1?strict=true",
    "secret": "secret-token",
    "insecure_ssl": false
  }
}

A webhook is an extension of Rossum that is notified when some event occurs. A webhook object is used to configure external or internal endpoint of such an extension service. For more information see Extensions.

Attribute	Type	Default	Description	Read-only
id	integer		Id of the webhook	true
name	string		Name of the webhook (not visible in UI)
url	URL		URL of the webhook	true
queues	list[URL]		List of queues that use webhook object.
active	bool		If set to true the webhook is notified.
events	list[string]		List of events, when the hook should be notified. For the list of events see Webhook events.
metadata	object	{}	Client data, see metadata.
config	object		Configuration of the webhook.

Config attribute

Attribute	Type	Default	Description	Read-only
url	URL		URL of the webhook endpoint
secret	string		(optional) If set, it is used to create a hash signature with each payload. For more information see Validating payloads from Rossum
insecure_ssl	bool	false	Disable SSL certificate verification (only use for testing purposes).

List all webhooks

List all webhooks

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/webhooks'

{
  "pagination": {
    "total": 1,
    "total_pages": 1,
    "next": null,
    "previous": null
  },
  "results": [
    {
      "id": 1500,
      "url": "https://api.elis.rossum.ai/v1/webhooks/1500",
      "name": "Some Webhook",
      "metadata": {},
      "queues": [
        "https://api.elis.rossum.ai/v1/queues/8199",
        "https://api.elis.rossum.ai/v1/queues/8191"
      ],
      "active": true,
      "events": [
        "annotation_status"
      ],
      "config": {
        "url": "https://myq.east-west-trading.com/api/hook1?strict=true"
      }
    }
  ]
}

GET /v1/webhooks

Retrieve all webhook objects.

Supported filters: id, name, queues, active, config_url

Supported ordering: id, name, active, config_url, events

Response

Status: 200

Returns paginated response with a list of webhook objects.

Create a new webhook

Create new webhook related to queue 8199 with endpoint URL https://myq.east-west-trading.com

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' -H 'Content-Type: application/json' \
  -d '{"name": "MyQ Webhook", "queues": ["https://api.elis.rossum.ai/v1/queues/8199"], "config": {"url": "https://myq.east-west-trading.com"}, "events": []}' \
  'https://api.elis.rossum.ai/v1/webhooks'

{
  "id": 1501,
  "url": "https://api.elis.rossum.ai/v1/webhooks/1501",
  "name": "MyQ Webhook",
  "metadata": {},
  "queues": [
     "https://api.elis.rossum.ai/v1/queues/8199"
  ],
  "active": true,
  "events": [],
  "config": {
    "url": "https://myq.east-west-trading.com"
  }
}

POST /v1/webhooks

Create a new webhook object.

Response

Status: 201

Returns created webhook object.

Retrieve a webhook

Get webhook object 1500

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/webhooks/1500'

{
  "id": 1500,
  "url": "https://api.elis.rossum.ai/v1/webhooks/1500",
  "name": "Some Webhook",
  "metadata": {},
  "queues": [
     "https://api.elis.rossum.ai/v1/queues/8199",
     "https://api.elis.rossum.ai/v1/queues/8191"
  ],
  "active": true,
  "events": [
    "annotation_status"
  ],
  "config": {
    "url": "https://myq.east-west-trading.com/api/hook1?strict=true"
  }
}

GET /v1/webhooks/{id}

Get an webhook object.

Response

Status: 200

Returns webhook object.

Update a webhook

Update webhook object 1500

curl -X PUT -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' -H 'Content-Type: application/json' \
  -d '{"name": "MyQ Webhook (stg)", "queues": ["https://api.elis.rossum.ai/v1/queues/8199"], "config": {"url": "https://myq.stg.east-west-trading.com"}, "events": []} \
  'https://api.elis.rossum.ai/v1/webhooks/1500'

{
  "id": 1500,
  "url": "https://api.elis.rossum.ai/v1/webhooks/1500",
  "name": "MyQ Webhook (stg)",
  "metadata": {},
  "queues": [
     "https://api.elis.rossum.ai/v1/queues/8199"
  ],
  "active": true,
  "events": [],
  "config": {
    "url": "https://myq.stg.east-west-trading.com"
  }
}

PUT /v1/webhooks/{id}

Update webhook object.

Response

Status: 200

Returns updated webhook object.

Update part of a webhook

Update webhook URL of webhook object 1500

curl -X PATCH -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' -H 'Content-Type: application/json' \
  -d '{"config": {"url": "https://myq.stg2.east-west-trading.com"}}' \
  'https://api.elis.rossum.ai/v1/webhooks/1500'

{
  "id": 1500,
  "url": "https://api.elis.rossum.ai/v1/webhooks/1500",
  "name": "Some Webhook",
  "metadata": {},
  "queues": [
     "https://api.elis.rossum.ai/v1/queues/8199",
     "https://api.elis.rossum.ai/v1/queues/8191"
  ],
  "active": true,
  "events": [
    "annotation_status"
  ],
  "config": {
    "url": "https://myq.stg2.east-west-trading.com"
  }
}

PATCH /v1/webhooks/{id}

Update part of webhook object.

Response

Status: 200

Returns updated webhook object.

Delete a webhook

Delete webhook 1500

curl -X DELETE -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/webhooks/1500'

DELETE /v1/webhooks/{id}

Delete webhook object.

Response

Status: 204

Schema

Example schema object

{
  "id": 31336,
  "name": "Basic Schema",
  "queues": [
    "https://api.elis.rossum.ai/v1/queues/8236"
  ],
  "url": "https://api.elis.rossum.ai/v1/schemas/31336",
  "content": [
    {
      "category": "section",
      "id": "invoice_details_section",
      "label": "Invoice details",
      "children": [
        {
          "category": "datapoint",
          "id": "invoice_id",
          "label": "Invoice number",
          "type": "string",
          "rir_field_names": [
            "invoice_id"
          ],
          "constraints": {
            "required": false
          },
          "default_value": null
        }
        ...
      ]
    },
    ...
  ],
  "metadata": {}
}

A schema object specifies the set of datapoints that are extracted from the document. For more information see Document Schema.

Attribute	Type	Default	Description	Read-only
id	integer		Id of the schema	true
name	string		Name of the schema (not visible in UI)
url	URL		URL of the schema	true
queues	list[URL]		List of queues that use schema object.	true
content	list[object]		List of sections (top-level schema objects, see Document Schema for description of schema)
metadata	object	{}	Client data, see metadata.

Validate a schema

Validate content of schema object 33725

curl -X PUT -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' -H 'Content-Type: application/json' \
  -d '{"content":[{"category":"section","id":"invoice_details_section","label":"Invoice details","icon": null,"children":[{"category":"datapoint","id":"invoice_id","label":"Invoice number","type":"string","rir_field_names":["invoice_id"]}]}]}' \
  'https://api.elis.rossum.ai/v1/schemas/33725'

POST /v1/schemas/validate

Validate schema object, check for errors.

Response

Status: 200 or 400

Returns 400 and error description in case of validation failure.

List all schemas

List all schemas

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/schemas'

{
  "pagination": {
    "total": 2,
    "total_pages": 1,
    "next": null,
    "previous": null
  },
  "results": [
    {
      "id": 31336,
      "url": "https://api.elis.rossum.ai/v1/schemas/31336"
    },
    {
      "id": 33725,
      "url": "https://api.elis.rossum.ai/v1/schemas/33725"
    }
  ]
}

GET /v1/schemas

Retrieve all schema objects.

Supported filters: id, name

Supported ordering: id

Response

Status: 200

Returns paginated response with a list of schema objects.

Create a new schema

Create new empty schema

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' -H 'Content-Type: application/json' \
  -d '{"name": "Test Schema", "content": []}' \
  'https://api.elis.rossum.ai/v1/schemas'

{
  "id": 33725,
  "name": "Test Schema",
  "queues": [],
  "url": "https://api.elis.rossum.ai/v1/schemas/33725",
  "content": [],
  "metadata": {}
}

POST /v1/schemas

Create a new schema object.

Response

Status: 201

Returns created schema object.

Create schema from template organization

Create new schema object from template organization, see available templates in organization.

Create new schema object from template organization

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' -H 'Content-Type: application/json' \
  -d '{"name": "Test Schema", "template_name": "EU Demo Template"}' \
  'https://api.elis.rossum.ai/v1/schemas/from_template'

{
  "name": "Test Schema",
  "id": 33726,
  "queues": [],
  "url": "https://api.elis.rossum.ai/v1/schemas/33726",
  "content": [
    {
        "id": "invoice_info_section",
        "icon": null,
        "label": "Basic information",
        "category": "section",
        "children": [
              ...
  ],
  "metadata": {}
}

POST /v1/schemas/from_template

Create a new schema object.

Response

Status: 201

Returns created schema object.

Retrieve a schema

Get schema object 31336

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/schemas/31336'

{
  "id": 31336,
  "name": "Basic schema",
  "queues": [
    "https://api.elis.rossum.ai/v1/queues/8236"
  ],
  "url": "https://api.elis.rossum.ai/v1/schemas/31336",
  "content": [
    {
      "category": "section",
      "id": "invoice_details_section",
      "label": "Invoice details",
      "children": [
        {
          "category": "datapoint",
          "id": "invoice_id",
          "label": "Invoice number",
          "type": "string",
          "rir_field_names": [
            "invoice_id"
          ],
          "constraints": {
            "required": false
          },
          "default_value": null
        },
        ...
      ]
    },
    ...
  ]
}

GET /v1/schemas/{id}

Get a schema object.

Response

Status: 200

Returns schema object.

Update a schema

Update content of schema object 33725

curl -X PUT -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' -H 'Content-Type: application/json' \
  -d '{"name":"Test Schema","content":[{"category":"section","id":"invoice_details_section","label":"Invoice details","icon": null,"children":[{"category":"datapoint","id":"invoice_id","label":"Invoice number","type":"string","rir_field_names":["invoice_id"]}]}]}' \
  'https://api.elis.rossum.ai/v1/schemas/33725'

{
  "id": 33725,
  "name": "Test Schema",
  "queues": [],
  "url": "https://api.elis.rossum.ai/v1/schemas/33725",
  "content": [
    {
      "category": "section",
      "id": "invoice_details_section",
      "label": "Invoice details",
      "children": [
        {
          "category": "datapoint",
          "id": "invoice_id",
          "label": "Invoice number",
          "type": "string",
          "rir_field_names": [
            "invoice_id"
          ],
          "default_value": null
        }
      ],
      "icon": null
    }
  ],
  "metadata": {}
}

PUT /v1/schemas/{id}

Update schema object. See Updating schema for more details about consequences of schema update.

Response

Status: 200

Returns updated schema object.

Update part of a schema

Update schema object 31336

curl -X PATCH -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' -H 'Content-Type: application/json' \
  -d '{"content": []}' \
  'https://api.elis.rossum.ai/v1/schemas/31336'

{
  "id": 31336,
  "name": "Test Schema",
  "queues": [
    "https://api.elis.rossum.ai/v1/queues/8236"
  ],
  "url": "https://api.elis.rossum.ai/v1/schemas/31336",
  "content": [],
  "metadata": {}
}

PATCH /v1/schemas/{id}

Update part of schema object. See Updating schema for more details about consequences of schema update.

Response

Status: 200

Returns updated schema object.

Delete a schema

Delete schema 31336

curl -X DELETE -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/schemas/31336'

DELETE /v1/schemas/{id}

Delete schema object.

Response

Status: 204

Document

Example document object

{
  "id": 314628,
  "url": "https://api.elis.rossum.ai/v1/documents/314628",
  "s3_name": "272c2f01ae84a4e19a421cb432e490bb",
  "annotations": [
    "https://api.elis.rossum.ai/v1/annotations/314528"
  ],
  "mime_type": "application/pdf",
  "arrived_at": "2019-10-13T23:04:00.933658Z",
  "original_file_name": "test_invoice_1.pdf",
  "content": "https://api.elis.rossum.ai/v1/documents/314628/content",
  "metadata": {}
}

A document object contains information about one input file (PDF or image). It cannot be created through the API, you need to use queue upload endpoint.

Attribute	Type	Default	Description	Read-only
id	integer		Id of the document	true
url	URL		URL of the document	true
s3_name	string		Internal	true
annotations	list[URL]		List of annotations related to the document. Usually there is only one annotation.
mime_type	string		MIME type of the document (e.g. application/pdf)	true
arrived_at	datetime		Timestamp of document upload or incoming email attachment extraction.	true
original_file_name	string		File name of the attachment or upload.	true
content	URL		Link to the document raw content (e.g. PDF file)
metadata	object	{}	Client data, see metadata.

List all documents

List all documents

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/documents'

{
  "pagination": {
    "total": 2,
    "total_pages": 1,
    "next": null,
    "previous": null
  },
  "results": [
    {
      "id": 314628,
      "url": "https://api.elis.rossum.ai/v1/documents/314628",
      "s3_name": "272c2f01ae84a4e19a421cb432e490bb",
      "annotations": [
        "https://api.elis.rossum.ai/v1/annotations/314528"
      ],
      "mime_type": "application/pdf",
      "arrived_at": "2019-10-13T23:04:00.933658Z",
      "original_file_name": "test_invoice_1.pdf",
      "content": "https://api.elis.rossum.ai/v1/documents/314628/content",
      "metadata": {}
    },
    {
      "id": 315609,
      "url": "https://api.elis.rossum.ai/v1/documents/315609",
      "s3_name": "8e506763caa2bc03f09cba3bf4817f84",
      "annotations": [
        "https://api.elis.rossum.ai/v1/annotations/315509"
      ],
      "mime_type": "image/png",
      "arrived_at": "2019-10-13T16:16:30.726217Z",
      "original_file_name": "test_invoice_2.png",
      "content": "https://api.elis.rossum.ai/v1/documents/315609/content",
      "metadata": {}
    }
  ]
}

GET /v1/documents

Retrieve all document objects.

Supported filters: id, arrived_at, original_file_name

Supported ordering: id, arrived_at, original_file_name, s3_name, mime_type

Response

Status: 200

Returns paginated response with a list of document objects.

Retrieve a document

Get document object 314628

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/documents/314628'

{
  "id": 314628,
  "url": "https://api.elis.rossum.ai/v1/documents/314628",
  "s3_name": "272c2f01ae84a4e19a421cb432e490bb",
  "annotations": [
    "https://api.elis.rossum.ai/v1/annotations/314528"
  ],
  "mime_type": "application/pdf",
  "arrived_at": "2019-10-13T23:04:00.933658Z",
  "original_file_name": "test_invoice_1.pdf",
  "content": "https://api.elis.rossum.ai/v1/documents/314628/content",
  "metadata": {}
}

GET /v1/documents/{id}

Get a document object.

Response

Status: 200

Returns document object.

Permanent URL

Download document original from a permanent URL

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/original/272c2f01ae84a4e19a421cb432e490bb'

GET /v1/original/272c2f01ae84a4e19a421cb432e490bb

Get original document content (e.g. PDF file).

Response

Status: 200

Returns original document file.

Delete a document

Delete document 314628

curl -X DELETE -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/documents/314628'

DELETE /v1/documents/{id}

Delete a document object from the database. It also deletes the related annotation and page objects.

Never call this internal API, mark the annotation as deleted instead.

Response

Status: 204

Annotation

Example annotation object

{
  "document": "https://api.elis.rossum.ai/v1/documents/314628",
  "id": 314528,
  "queue": "https://api.elis.rossum.ai/v1/queues/8199",
  "schema": "https://api.elis.rossum.ai/v1/schemas/95",
  "pages": [
    "https://api.elis.rossum.ai/v1/pages/558598"
  ],
  "modifier": null,
  "modified_at": null,
  "confirmed_at": null,
  "exported_at": null,
  "assigned_at": null,
  "status": "to_review",
  "rir_poll_id": "54f6b9ecfa751789f71ddf12",
  "messages": null,
  "url": "https://api.elis.rossum.ai/v1/annotations/314528",
  "content": "https://api.elis.rossum.ai/v1/annotations/314528/content",
  "time_spent": 0,
  "metadata": {}
}

An annotation object contains all extracted and verified data related to a document. Every document belongs to a queue and is related to the schema object, that defines datapoint types and overall shape of the extracted data.

It cannot be created through the API, you need to use queue upload endpoint.

Attribute	Type	Default	Description	Read-only
id	integer		Id of the annotation	true
url	URL		URL of the annotation	true
status	enum		Status of the document, see Document Lifecycle for list of value.
document	URL		Related document.
queue	URL		Queues that annotation belongs to.
schema	URL		Schema that defines content shape.	true
pages	list[URL]		List of rendered pages.	true
modifier	URL		User that last modified the annotation.
assigned_at	datetime		Timestamp of last assignment to a user.	true
modified_at	datetime		Timestamp of last modification.	true
confirmed_at	datetime		Timestamp of confirmation by the user.	true
exported_at	datetime		Timestamp of finished export.	true
rir_poll_id	string		Internal.
messages	list[object]	[]	List of messages from the connector.
content	URL		Link to annotation data (datapoint values), see Annotation data.	true
time_spent	float	0	Total time spent while validating the annotation.
metadata	object	{}	Client data, see metadata.

Start annotation

Start annotation of object 319668

curl -X POST -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/annotations/319668/start'

{
  "annotation": "https://api.elis.rossum.ai/v1/annotations/319668",
  "session_timeout": "01:00:00"
}

POST /v1/annotations/{id}/start

Assign the calling user the annotation.

Response

Status: 200

Returns object with annotation and session_timeout keys.

Start embedded annotation

Start embedded annotation of object 319668

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' -H 'Content-Type: application/json' \
  -d '{"return_url": "https://service.com/return", "cancel_url": "https://service.com/cancel"}' \
  'https://api.elis.rossum.ai/v1/annotations/319668/start_embedded'

{
  "url": "https://embedded.elis.rossum.ai/document/319668#authToken=1c50ae8552441a2cda3c360c1e8cb6f2d91b14a9"
}

POST /v1/annotations/{id}/start_embedded

Start embedded annotation. It requires two parameters: return_url and cancel_url.

Key	Description
return_url	URL browser is redirected to in case of successful user validation (max. length: 256 chars)
cancel_url	URL browser is redirected to in case of user canceling the validation (max. length: 256 chars)
max_token_lifetime_s	Duration (in seconds) for which the token will be valid (optional, default: queue's session_timeout, max: 162 hours)

Response

Status: 200

Returns object with url that specifies URL to be used in the browser iframe/popup window. URL includes a token that is valid for this document only for a limited period of time.

Confirm annotation

Confirm annotation of object 319668

curl -X POST -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/annotations/319668/confirm'

POST /v1/annotations/{id}/confirm

Confirm annotation, switch status to exported (or exporting).

Response

Status: 204

Cancel annotation

Cancel annotation of object 319668

curl -X POST -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/annotations/319668/cancel'

POST /v1/annotations/{id}/cancel

Cancel annotation, switch its status back to to_review or postponed.

Response

Status: 204

Switch to postponed

Postpone annotation status of object 319668 to postponed

curl -X POST -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/annotations/319668/postpone'

POST /v1/annotations/{id}/postpone

Switch annotation status to postpone.

Response

Status: 204

Switch to deleted

Switch annotation status of object 319668 to deleted

curl -X POST -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/annotations/319668/delete'

POST /v1/annotations/{id}/delete

Switch annotation status to deleted. Annotation with status deleted is still available in Rossum UI.

Response

Status: 204

Rotate the annotation

Rotate the annotation 319668

curl -X POST -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  -H 'Content-Type:application/json' -d '{"rotation_deg": 270}' \
  'https://api.elis.rossum.ai/v1/annotations/319668/rotate"

POST /v1/annotations/{id}/rotate

Rotate a document. It requires one parameter: rotation_deg.

Status of the annotation is switched to importing and the extraction phase begins over again. After the new extraction, the value from rotation_deg field is copied to pages rotation field rotation_deg.

Key	Description
rotation_deg	States degrees by which the document shall be rotated. Possible values: 0, 90, 180, 270.

Response

Status: 204

Search for text

Search for text in annotation 319668

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/annotations/319668/search?phrase=some'

{
  "results": [
    {
      "rectangle": [
        67.15157010915198,
        545.9286363906203,
        87.99106633081445,
        563.4617583852776
      ],
      "page": 1
    },
    {
      "rectangle": [
        45.27717884130982,
        1060.3084761056693,
        66.11667506297229,
        1077.8415981003266
      ],
      "page": 1
    }
  ],
  "status": "ok"
}

GET /v1/annotations/{id}/search

Search for a phrase in the document.

Argument	Description
phrase	A phrase to search for
tolerance	Allowed Edit distance from the search phrase. Only used for OCR invoices (images, such as png or PDF with scanned images).

Response

Status: 200

Returns results with a list of objects:

Key	Type	Description
rectangle	list[float]	Bounding box of an occurrence.
page	integer	Page of occurrence.

---

Convert grid to table data

Convert grid to tabular data in annotation 319623

curl -X POST -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/annotations/319623/content/37507202/transform_grid_to_datapoints'

POST /v1/annotations/{id}/content/{id of the child node}/transform_grid_to_datapoints

Transform grid structure to tabular data of related multivalue object.

Response

Status: 200

List all annotations

List all annotations

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/annotations'

{
  "pagination": {
    "total": 22,
    "total_pages": 1,
    "next": null,
    "previous": null
  },
  "results": [
    {
      "document": "https://api.elis.rossum.ai/v1/documents/315877",
      "id": 315777,
      "queue": "https://api.elis.rossum.ai/v1/queues/8236",
      "schema": "https://api.elis.rossum.ai/v1/schemas/31336",
      "pages": [
        "https://api.elis.rossum.ai/v1/pages/561206"
      ],
      "modifier": null,
      "modified_at": null,
      "confirmed_at": null,
      "exported_at": null,
      "assigned_at": null,
      "status": "to_review",
      "rir_poll_id": "54f6b9ecfa751789f71ddf12",
      "messages": null,
      "url": "https://api.elis.rossum.ai/v1/annotations/315777",
      "content": "https://api.elis.rossum.ai/v1/annotations/315777/content",
      "time_spent": 0,
      "metadata": {}
    },
    {
      ...
    }
  ]
}

GET /v1/annotations

Retrieve all annotation objects.

Supported ordering: document, document__arrived_at, document__original_file_name, modifier, modifier__username, queue, status, assigned_at, confirmed_at, modified_at, exported_at

Filters

Filters may be specified to limit annotations to be listed.

Attribute	Description
status	Annotation status, multiple values may be separated using a comma
id	List of ids separated by a comma
modifier	User id
document	Document id
queue	Queue id
arrived_at_before	ISO 8601 timestamp (e.g. arrived_at_before=2019-11-15)
arrived_at_after	ISO 8601 timestamp (e.g. arrived_at_after=2019-11-14)
assigned_at_before	ISO 8601 timestamp (e.g. assigned_at_before=2019-11-15)
assigned_at_after	ISO 8601 timestamp (e.g. assigned_at_after=2019-11-14)
confirmed_at_before	ISO 8601 timestamp (e.g. confirmed_at_before=2019-11-15)
confirmed_at_after	ISO 8601 timestamp (e.g. confirmed_at_after=2019-11-14)
modified_at_before	ISO 8601 timestamp (e.g. modified_at_before=2019-11-15)
modified_at_after	ISO 8601 timestamp (e.g. modified_at_after=2019-11-14)
exported_at_before	ISO 8601 timestamp (e.g. exported_at_before=2019-11-14 22:00:00)
exported_at_after	ISO 8601 timestamp (e.g. exported_at_after=2019-11-14 12:00:00)

Query fields

Obtain only subset of annotation attributes

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/annotations?fields=id,url'

{
  "pagination": {
    "total": 22,
    "total_pages": 1,
    "next": null,
    "previous": null
  },
  "results": [
    {
      "id": 320332,
      "url": "https://api.elis.rossum.ai/v1/annotations/320332"
    },
    {
      "id": 319668,
      "url": "https://api.elis.rossum.ai/v1/annotations/319668"
    },
    ...
  ]
}

In order to obtain only subset of annotation object attributes, one can use query parameter fields.

Argument	Description
fields	Comma-separated list of attributes to be included in the response.
fields!	Comma-separated list of attributes to be excluded from the response.

Sideloading

Sideload documents and modifiers

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/annotations?sideload=modifiers,documents'

{
  "pagination": {
    "total": 22,
    "total_pages": 1,
    "next": null,
    "previous": null
  },
  "results": [
    {
      "document": "https://api.elis.rossum.ai/v1/documents/320432",
      "id": 320332,
      ...,
      "modifier": "https://api.elis.rossum.ai/v1/users/10775",
      "status": "to_review",
      "rir_poll_id": "a898b6bdc8964721b38e0160",
      "messages": null,
      "url": "https://api.elis.rossum.ai/v1/annotations/320332",
      "content": "https://api.elis.rossum.ai/v1/annotations/320332/content",
      "time_spent": 0,
      "metadata": {}
    },
    ...
  ],
  "documents": [
    {
      "id": 320432,
      "url": "https://api.elis.rossum.ai/v1/documents/320432",
      ...
    },
    ...
  ],
  "modifiers": [
    {
      "id": 10775,
      "url": "https://api.elis.rossum.ai/v1/users/10775",
      ...
    },
    ...
  ]
}

In order to decrease the number of requests necessary for obtaining useful information about annotations, modifiers and documents can be sideloaded using query parameter sideload. This parameter accepts comma-separated list of keywords: modifiers, documents. Then the response is enriched by the requested keys, which contain lists of the sideloaded objects.

Response

Status: 200

Returns paginated response with a list of annotation objects.

Retrieve an annotation

Get annotation object 315777

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/annotations/315777'

{
  "document": "https://api.elis.rossum.ai/v1/documents/315877",
  "id": 315777,
  "queue": "https://api.elis.rossum.ai/v1/queues/8236",
  "schema": "https://api.elis.rossum.ai/v1/schemas/31336",
  "pages": [
    "https://api.elis.rossum.ai/v1/pages/561206"
  ],
  "modifier": null,
  "modified_at": null,
  "confirmed_at": null,
  "exported_at": null,
  "assigned_at": null,
  "status": "to_review",
  "rir_poll_id": "54f6b9ecfa751789f71ddf12",
  "messages": null,
  "url": "https://api.elis.rossum.ai/v1/annotations/315777",
  "content": "https://api.elis.rossum.ai/v1/annotations/315777/content",
  "time_spent": 0,
  "metadata": {}
}

GET /v1/annotations/{id}

Get an annotation object.

Response

Status: 200

Returns annotation object.

Update an annotation

Update annotation object 315777

curl -X PUT -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' -H 'Content-Type: application/json' \
  -d '{"document": "https://api.elis.rossum.ai/v1/documents/315877", "queue": "https://api.elis.rossum.ai/v1/queues/8236", "status": "postponed"}' \
  'https://api.elis.rossum.ai/v1/annotations/315777'

{
  "document": "https://api.elis.rossum.ai/v1/documents/315877",
  "id": 315777,
  "queue": "https://api.elis.rossum.ai/v1/queues/8236",
  ...
  "status": "postponed",
  "rir_poll_id": "a898b6bdc8964721b38e0160",
  "messages": null,
  "url": "https://api.elis.rossum.ai/v1/annotations/315777",
  "content": "https://api.elis.rossum.ai/v1/annotations/315777/content",
  "time_spent": 0,
  "metadata": {}
}

PUT /v1/annotations/{id}

Update annotation object.

Response

Status: 200

Returns updated annotation object.

Update part of an annotation

Update status of annotation object 315777

curl -X PATCH -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' -H 'Content-Type: application/json' \
  -d '{"status": "deleted"}' \
  'https://api.elis.rossum.ai/v1/annotations/315777'

{
  "document": "https://api.elis.rossum.ai/v1/documents/315877",
  "id": 315777,
  ...
  "status": "deleted",
  "rir_poll_id": "a898b6bdc8964721b38e0160",
  "messages": null,
  "url": "https://api.elis.rossum.ai/v1/annotations/315777",
  "content": "https://api.elis.rossum.ai/v1/annotations/315777/content",
  "time_spent": 0,
  "metadata": {}
}

PATCH /v1/annotations/{id}

Update part of annotation object.

Response

Status: 200

Returns updated annotation object.

Copy annotation

Copy annotation 315777 to a queue 8236

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' -H 'Content-Type: application/json' \
  -d '{"target_queue": "https://api.elis.rossum.ai/v1/queues/8236", "target_status": "to_review"}' \
  'https://api.elis.rossum.ai/v1/annotations/315777/copy'

{
  "annotation": "https://api.elis.rossum.ai/v1/annotations/320332"
}

POST /v1/annotations/{id}/copy

Make a copy of annotation in another queue. All data and metadata are copied.

Key	Description
target_queue	URL of queue, where the copy should be placed.
target_status	Status of copied annotation (if not set, it stays the same)

Response

Status: 200

Returns URL of the new annotation object.

Delete annotation

Delete annotation 315777

curl -X DELETE -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/annotations/315777'

DELETE /v1/annotations/{id}

Delete an annotation object from the database. It also deletes the related page objects.

Never call this internal API, mark the annotation as deleted instead.

Response

Status: 204

Annotation Data

Example annotation data

{
  "content": [
    {
      "id": 27801931,
      "url": "https://api.elis.rossum.ai/v1/annotations/319668/content/27801931",
      "children": [
        {
          "id": 27801932,
          "url": "https://api.elis.rossum.ai/v1/annotations/319668/content/27801932",
          "content": {
            "value": "2183760194",
            "page": 1,
            "position": [
              761,
              48,
              925,
              84
            ],
            "rir_text": "2183760194",
            "rir_position": [
              761,
              48,
              925,
              84
            ],
            "connector_text": null,
            "rir_confidence": 0.99234
          },
          "category": "datapoint",
          "schema_id": "invoice_id",
          "validation_sources": [
            "score"
          ],
          "time_spent": 0,
          "hidden": false
        },
        {
          "id": 27801933,
          "url": "https://api.elis.rossum.ai/v1/annotations/319668/content/27801933",
          "content": {
            "value": "6/8/2018",
            "page": 1,
            "position": [
              283,
              300,
              375,
              324
            ],
            "rir_text": "6/8/2018",
            "rir_position": [
              283,
              300,
              375,
              324
            ],
            "connector_text": null,
            "rir_confidence": 0.98279
          },
          "category": "datapoint",
          "schema_id": "date_issue",
          "validation_sources": [
            "score"
          ],
          "time_spent": 0,
          "hidden": false
        },
        {
          "id": 27801934,
          "url": "https://api.elis.rossum.ai/v1/annotations/319668/content/27801934",
          "content": null,
          "category": "datapoint",
          "schema_id": "email_button",
          "validation_sources": [
            "NA"
          ],
          "time_spent": 0,
          "hidden": false
        },
        ...
    }
  ]
}

Annotation data is used by the Rossum UI to display annotation data properly. Be aware that values are not normalized (e.g. numbers, dates) and data structure may be changed to accommodate UI requirements.

Top level content contains a list of section objects. results is currently a copy of content and is deprecated.

Section objects:

Attribute	Type	Description	Read-only
id	int	A unique ID of a given section.	true
url	URL	URL of the section.	true
schema_id	string	Reference mapping the object to the schema tree.
category	string	section
children	list	Array specifying objects that belong to the section.

Datapoint, multivalue and tuple objects:

Attribute	Type	Description	Read-only
id	int	A unique ID of a given object.	true
url	URL	URL of a given object.	true
schema_id	string	Reference mapping the object to the schema tree.
category	string	Type of the object (datapoint, multivalue or tuple).	true
children	list	Array specifying child objects. Only available for multivalue and tuple categories.	true
content	object	(optional) A dictionary of the attributes of a given datapoint (only available for datapoint) see below for details.	true
validation_sources	list[object]	Source of validation of the extracted data, see below.
time_spent	float	Total time spent while validating a given node.	true
hidden	bool	If set to true, the datapoint is not visible in the user interface, but remains stored in the database.
grid	object	Specify grid structure, see below for details. Only allowed for multivalue object.

Content object

Can be null for datapoints of type button

Attribute	Type	Description	Read-only
value	string	The extracted data of a given node.
page	int	Number of page where the data is situated (see position).
position	list	List of the coordinates of the label box of the given node.
rir_text	string	The extracted text, used as a reference for data extraction models.	true
rir_page	int	The extracted page, used as a reference for data extraction models.	true
rir_position	list	The extracted position, used as a reference for data extraction models.	true
rir_confidence	float	Confidence (estimated probability) that this field was extracted correctly.	true
connector_text	string	Text set by the connector.	true
connector_position	list	Position set by the connector.	true

Validation sources

validation_sources property is a list of sources that verified the extracted data. When the list is non-empty, datapoint is considered to be validated (and no eye-icon is displayed next to it in the Rossum UI).

Currently, there are five sources of validation:

• score: confidence score coming from the AI Core Engine was higher than a preset score threshold (can be set on queue, or individually per datapoint in schema; default is 0.975),
• checks: data extractor does several checks like summing up tax_details, which can verify that the data were extracted correctly,
• history: several fields can be confirmed from historical data in exported documents (can be turned on/off on per workspace basis using autopilot toggle), and
• connector: a connector verified the validity.
• human: an operator visited the field in validation interface (assumed just verifying the value, not necessarily making any corrections).

A sixth possible validation source value NA signs that validation sources are "Not Applicable" and may now occur only for button datapoints.

The list is subject to ongoing expansion.

Example multivalue datapoint object with a grid

{
  "id": 122852,
  "schema_id": "line_items",
  "category": "multivalue",
  "grid": {
    "parts": [
      {
        "page": 1,
        "columns": [
          {
            "left_position": 348,
            "schema_id": "item_description",
            "header_texts": ["Description"]
          },
          {
            "left_position": 429,
            "schema_id": "item_quantity",
            "header_texts": ["Qty"]
          }
        ],
        "rows": [
          {
            "top_position": 618,
            "type": "header"
          },
          {
            "top_position": 649,
            "type": "data"
          }
        ],
        "width": 876,
        "height": 444
      }
    ]
  },
  ...
}

Grid object is used to store table vertical and horizontal separators and related attributes. Every grid consists of one or more parts.

Every part object consists of several attributes:

Attribute	Type	Description
page	int	A unique ID of a given object.
columns	list[object]	Description of grid columns.
rows	list[object]	Description of grid rows.
width	float	Total width of the grid.
height	float	Total height of the grid.

Every column contains attributes:

Attribute	Type	Description
left_position	float	Position of the column left edge.
schema_id	string	Reference to datapoint schema id. Used in grid-to-table conversion.
header_texts	list[string]	Extracted texts from column headers.

Every row contains attributes:

Attribute	Type	Description
top_position	float	Position of the row top edge.
type	string	Row type. Allowed values are specified in the schema, see grid. If null, the row is ignored during grid-to-table conversion.

Currently, it is only allowed to have one part per page (for a particular grid).

Get the annotation data

Get annotation data of annotation 315777

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/annotations/315777/content'

GET /v1/annotations/{id}/content

Get annotation data.

Response

Status: 200

Returns annotation data.

Send updated annotation data

Send feedback on annotation 315777

Start the annotation

curl -X POST -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/annotations/315777/start'

{
  "annotation": "https://api.elis.rossum.ai/v1/annotations/315777",
  "session_timeout": "01:00:00"
}

Get the annotation data

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/annotations/315777/content'

{
  "id": 37507206,
  "url": "https://api.elis.rossum.ai/v1/annotations/315777/content/37507206",
  "content": {
    "value": "001",
    "page": 1,
    "position": [
      302,
      91,
      554,
      56
    ],
    "rir_text": "000957537",
    "rir_position": [
      302,
      91,
      554,
      56
    ],
    "connector_text": null,
    "rir_confidence": null
  },
  "category": "datapoint",
  "schema_id": "invoice_id",
  "validation_sources": [
    "human"
  ],
  "time_spent": 2.7,
  "hidden": false
  }

Patch the annotation

curl -X PATCH -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
-H 'Content-Type:application/json' -d '{"content": {"value": "#INV00011", "position": [302, 91, 554, 56]}}' \
'https://api.elis.rossum.ai/v1/annotations/315777/content/37507206'

{
  "id": 37507206,
  "url": "https://api.elis.rossum.ai/v1/annotations/431694/content/39125535",
  "content": {
    "value": "#INV00011",
    "page": 1,
    "position": [
      302,
      91,
      554,
      56
    ],
    "rir_text": "",
    "rir_position": null,
    "rir_confidence": null,
    "connector_text": null
  },
  "category": "datapoint",
  "schema_id": "invoice_id",
  "validation_sources": [],
  "time_spent": 0,
  "hidden": false
}

Confirm the annotation

curl -X POST -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/annotations/315777/confirm'

PATCH /v1/annotations/{id}/content/{id of the child node}

Update a particular annotation content node.

It is enough to pass just the updated attributes in the PATCH payload. start must be called on the annotation first and confirm after data is updated.

Response

Status: 200

Returns updated annotation data for the given node.

Page

Example page object

{
  "id": 558598,
  "annotation": "https://api.elis.rossum.ai/v1/annotations/314528",
  "number": 1,
  "rotation_deg": 0,
  "mime_type": "image/png",
  "s3_name": "4b66305775c029cb0cfa80fd0ebb2da6",
  "url": "https://api.elis.rossum.ai/v1/pages/558598",
  "content": "https://api.elis.rossum.ai/v1/pages/558598/content",
  "metadata": {}
}

A page object contains information about one page of the annotation (we render pages separately for every annotation, but this will change in the future).

Page objects are created automatically during document import and cannot be created through the API, you need to use queue upload endpoint. Pages cannot be deleted directly -- they are deleted on parent annotation delete.

Attribute	Type	Default	Description	Read-only
id	integer		Id of the page	true
url	URL		URL of the page.	true
annotation	URL		Annotation that page belongs to.
number	integer		Page index, first page has index 1.
rotation_deg	integer		Page rotation.
mime_type	string		MIME type of the page (image/png).	true
s3_name	string		Internal	true
content	URL		Link to the page raw content (pdf file).
metadata	object	{}	Client data, see metadata.

List all pages

List all pages

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/pages'

{
  "pagination": {
    "total": 1,
    "total_pages": 1,
    "next": null,
    "previous": null
  },
  "results": [
    {
      "id": 558598,
      "annotation": "https://api.elis.rossum.ai/v1/annotations/314528",
      "number": 1,
      "rotation_deg": 0,
      "mime_type": "image/png",
      "s3_name": "7eb0dcc0faa8868b55fb425d21cc60dd",
      "url": "https://api.elis.rossum.ai/v1/pages/558598",
      "content": "https://api.elis.rossum.ai/v1/pages/558598/content",
      "metadata": {}
    }
  ]
}

GET /v1/pages

Retrieve all page objects.

Supported filters: id, annotation, number

Supported ordering: id, number, s3_name

Response

Status: 200

Returns paginated response with a list of page objects.

Retrieve a page

Get page object 558598

curl -H 'Authorization: token db313f24f5738c8e04635e036ec8a45cdd6d6b03' \
  'https://api.elis.rossum.ai/v1/pages/558598'

{
  "id": 558598,
  "annotation": "https://api.elis.rossum.ai/v1/annotations/314528",
  "number": 1,
  "rotation_deg": 0,
  "mime_type": "image/png",
  "s3_name": "7eb0dcc0faa8868b55fb425d21cc60dd",
  "url": "https://api.elis.rossum.ai/v1/pages/558598",
  "content": "https://api.elis.rossum.ai/v1/pages/558598/content",
  "metadata": {}
}

GET /v1/pages/{id}

Get an page object.

Response

Status: 200

Returns page object.

FAQ

POST fails with HTTP status 500

Please check that Content-Type header in the HTTP request is set correctly (e.g. application/json).

We will improve content type checking in the future , so that to return 400.

SSL connection errors

Rossum API only supports TLS 1.2 to ensure that up-to-date algorithms and ciphers are used.

Older SSL libraries may not work properly with TLS 1.2. If you encounter SSL/TLS compatibility issue, please make sure the library supports TLS 1.2 and the support is switched on.