Fail a task out of band
POST/apps/{appId}/tasks/{token}/fail
Goes through the same retry decision as a synchronous failure, so reporting a failure out of band is treated identically to responding with an error. retryable: false is believed, and ends the attempt chain immediately. The body is closed: a key the server does not know is a 400, so a misspelled retryable is refused rather than silently dropped.
Path parameters
appId
stringREQUIRED
The app's name.
token
string (uuid)REQUIRED
Request body
error
objectREQUIRED