Callbacks

Real-time transaction status updates are sent to a provided callback URL during processing

Callback Triggers

Status changes to COMPLETED or DECLINED trigger a callback.
Rare manual reversals by the DT One team trigger a REVERSED status callback.

Callback Endpoint Implementation

The sending partner must implement a publicly accessible callback endpoint.
Expect an HTTP POST request with a JSON transaction object.
Use tools like ngrok during development to expose local servers.

Callback Response and Retries

Respond with an HTTP 2XX status upon successful data receipt.
Unsuccessful responses trigger retry attempts.
After retries, query the API for transaction status.