Endpoint
Request headers
JWT access token obtained from POST /authtoken.
Request body
The UUID returned by POST /flow/init. Ties these uploads to the correct verification session.
An array of file objects. You may include multiple documents in a single request.
Response
The response is an array with one entry per uploaded file.Atlas’s UUID for this specific file. Unique across all uploads.
A batch identifier grouping all files submitted in this request (for example,
BATCH-30732-SIYKJ-20251121113228).The
document_id you provided during upload, echoed back for easy correlation.Example
Error responses
| Status | Meaning |
|---|---|
400 | Missing or empty required parameters: ['flow_uuid'] — a required field is absent from the request body. |
422 | External service failure (for example, Atlas could not reach the authentication URL you configured). |
The
document_id field is your primary way to match Atlas extraction results back to your own documents. Choose a value that is unique within the flow and meaningful in your system (for example, a database record ID).