Access & visibility
Allow signing.SetSigningDeadline on your API key.
Workspace access by default. Private member data requires approved member delegation through Brigg-Act-As; the key supplies permissions while private ownership and project boundaries remain enforced.
Request fields
Send a JSON object with the following fields. Required fields must be included; omit optional fields you do not need.
signing_request_idstringRequiredKeep the signing_request_id returned when invitations were requested. A file_id or signer_id identifies something else. signing.RequestFileSignatures.
At least 1 character. At most 120 characters.
expires_atintegerRequiredNew deadline in Unix milliseconds, in the future. Brigg presents the deadline as an inclusive date in Europe/Oslo; use the end of that local day (23:59:59.999), converted to an epoch timestamp.
Follow one signing request through completion
Upload a readable PDF, then request signatures and keep signing_request_id. The request keeps a fixed source; replacing the original file later does not change what recipients sign.
Read Get signing request for per-recipient progress. completed means everyone signed, but the archive can still be preparing: wait for non-null file_id before requesting the signed PDF. Get signing document returns a short-lived URL for either the fixed original or the signed archive.
Notification failures do not undo the signing request. Remind the affected pending recipients instead of creating a duplicate request. Recipients sign themselves; a delegated API call cannot supply a recipient's signature. See the complete signing workflow.
Response
Returns 200 OK with a JSON body.
signing_request_idstringRequiredSigning request identifier.
expires_atnumberRequiredSigning deadline in Unix milliseconds.
previous_expires_atnumberRequiredDeadline before this update, in Unix milliseconds.
notifiedarray of stringRequiredWhether remaining recipients were notified of the deadline change.
notice_failuresarray of stringRequiredDeadline-change notifications that could not be delivered.
Errors & retries
Set BRIGG_REQUEST_ID once for each logical action. The samples send it as Idempotency-Key. Reuse the same value and body on retries, including after a timeout; a missing response does not prove the action failed.
For rate limits, follow the server’s retry guidance and back off. See HTTP errors and safe retries and limits.
| HTTP status | Code | What to do |
|---|---|---|
| 400 | invalid_json |
Send a JSON object with Content-Type: application/json. |
| 400 | invalid_input |
Check the request fields and types. Supply a stable Idempotency-Key containing 1–200 characters. |
| 401 | invalid_key |
The workspace API key is missing, invalid or revoked. |
| 403 | forbidden |
Check the key’s operation and resource grants. If Brigg-Act-As is supplied, the key must be authorized to delegate to that member. |
| 404 | not_found |
The requested operation or resource is not available to this credential. |
| 429 | rate_limited |
Wait for Retry-After before retrying. Reuse the original Idempotency-Key. |
Next steps
JSON schemas
Use the complete schemas for validation or client generation.
Full request JSON schema
{
"type": "object",
"properties": {
"signing_request_id": {
"type": "string",
"minLength": 1,
"maxLength": 120,
"description": "Keep the signing_request_id returned when invitations were requested. A file_id or signer_id identifies something else. [signing.RequestFileSignatures](/developers/reference/signing/RequestFileSignatures)."
},
"expires_at": {
"type": "integer",
"description": "New deadline in Unix milliseconds, in the future. Brigg presents the deadline as an inclusive date in Europe/Oslo; use the end of that local day (23:59:59.999), converted to an epoch timestamp."
}
},
"required": [
"signing_request_id",
"expires_at"
],
"additionalProperties": false,
"examples": [
{
"signing_request_id": "e_example",
"expires_at": 1794301200000
}
]
}Full response JSON schema
{
"type": "object",
"properties": {
"signing_request_id": {
"type": "string",
"description": "Signing request identifier."
},
"expires_at": {
"type": "number",
"description": "Signing deadline in Unix milliseconds."
},
"previous_expires_at": {
"type": "number",
"description": "Deadline before this update, in Unix milliseconds."
},
"notified": {
"type": "array",
"items": {
"type": "string"
},
"description": "Whether remaining recipients were notified of the deadline change."
},
"notice_failures": {
"type": "array",
"items": {
"type": "string"
},
"description": "Deadline-change notifications that could not be delivered."
}
},
"required": [
"signing_request_id",
"expires_at",
"previous_expires_at",
"notified",
"notice_failures"
],
"additionalProperties": false,
"examples": [
{
"signing_request_id": "e_example",
"expires_at": 1794301200000,
"previous_expires_at": 1794301200000,
"notified": [],
"notice_failures": []
}
]
}