veil

Cancel an incoming account transfer

The current account holder signs to cancel an open transfer.

POST/v1/takeovers/{id}/cancel
Access
Signed request
Client
Local or server client

Parameters#

NameLocationMeaning
idRequiredPathTransfer request ID.

This call also needs the common signed-request headers, nonce and timestamp. Prepare and sign request.json before using the example. Request signing

Request examples#

cURL
curl -fsS -X POST \
  -H "X-Public-Key: $PUBLIC_KEY" \
  -H "X-Signature: $REQUEST_SIGNATURE" --json @request.json \
  "https://veil.rip/v1/takeovers/TRANSFER_ID/cancel"

Response#

HTTP 200application/json

The updated transfer. The body contains nonce and timestamp.

FieldTypeMeaning
idintegerTakeover ID.
platformstringAccount platform.
subjectstringNormalised account identifier.
displaystring | nullAccount display name.
fromintegerCard holding the account before transfer.
tointegerCard requesting the account.
statusstringopen, cancelled or completed.
openedAtstringOpening time.
resolvesAtstringDeadline for the holder to cancel.
cancelledAtstring | nullCancellation time.
cancelledBystring | nullKey that cancelled the takeover.
completedAtstring | nullCompletion time.

Response headers#

HeaderValueMeaning
Content-Typeapplication/jsonUse the declared media type before choosing a parser.
DateHTTP dateServer time. Compare it with your clock when signing requests.
Retry-Afterinteger seconds, on rate_limited or busyWait at least this long before retrying. Other 429/503 codes do not necessarily include it.

Errors#

API errors return an error object. Use error.code for program logic; error.message is English text for people and can change. Response and error guide

HTTPCodeMeaning and next step
400invalid_json

The body is not a JSON object, contains duplicate keys or has trailing data.

Send one valid JSON object with Content-Type application/json.

400invalid_parameter

A path, query or body field is missing, malformed or outside its accepted range.

Correct the field named in error.message before sending again.

403key_mismatch

The signing key does not have authority over this card or operation.

Use an active device key with the required owner or member role.

404not_found

The requested card, key, alias, code or resource was not found.

Check the identifier. Temporary codes and previews may already have expired or been used.

409takeover_closed

The takeover is already cancelled or completed.

Read its current status.

413payload_too_large

The request body exceeds this endpoint’s byte limit.

Reduce the encoded body. API-key management accepts at most 8 KiB.

Shared request errors
HTTPCodeMeaning and next step
400invalid_nonce

The signed-request nonce has an invalid format.

Generate a fresh 16 to 128-character nonce using letters, digits, _ or -.

400invalid_signature_alg

X-Signature-Alg is unsupported.

Use a supported signing algorithm and matching key/signature encoding.

400invalid_timestamp

The signed-request timestamp is not Unix milliseconds.

Use an integer Unix timestamp in milliseconds and sign the corrected request.

401invalid_signature

The HTTP request signature does not verify.

Sign the exact method, path and body bytes, without changing them afterwards.

401missing_signature

The request requires a device signature and its headers are missing or unreadable.

Send X-Public-Key, X-Signature and the signed-request metadata. An API key does not replace a device signature.

401stale_timestamp

The signed timestamp is outside the accepted clock window.

Compare the server Date header with your clock, then generate a fresh nonce, timestamp and signature.

403key_banned

The device signing key is suspended by Veil staff.

Use an authorised active key or ask staff to review the restriction.

409replayed_nonce

The signing key already used this nonce.

Check whether the previous request succeeded before making a fresh signed request.

429rate_limited

An anonymous, signed-request or API-key allowance was exceeded.

Wait at least Retry-After seconds. Share a queue and retry budget across your workers.

500internal_error

An unexpected server error occurred. Internal details are not returned.

Retry reads with bounded backoff. Check write results before sending a new signed operation.

503busy

The application has reached a temporary concurrency or database limit.

Wait Retry-After seconds and retry with bounded backoff.