Document Upload

Before sending a document for signing, it must first be uploaded to Evia Sign. Uploading returns a documentToken, which is then referenced when creating a signature request.

Endpoint

POST /thumbs/api/requests/document

Headers

Header	Valu	Description
Authorization	Bearer {access_token}	OAuth 2.0 token obtained during authentication
Content-Type	multipart/form-data	Required for uploading files

Body (Form Data)

Name	Type	Description
File	file	PDF file to be uploaded

Example Request

Send a multipart/form-data request with the PDF file attached under the field File.

Response

On successful upload, the API responds with a unique documentToken. This token must be used when creating signature requests.

200

{
  "documentToken": "abc123-token"
}

Field	Description
documentToken	Unique reference for the uploaded document

Possible Errors

HTTP Status Code	Description
400	Bad request (e.g., no file attached, wrong format)
401	Unauthorized (invalid or expired access token)