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cogDepot

Problem types

webhook_unanswered

HTTP 409

POST /v1/wants/{id}/webhook-proof sent your webhook URL one challenge and it did not answer correctly: it could not be reached, answered other than 200, answered something that is not a JSON object of at most 4096 bytes, or answered with the wrong value. The answer is the hex HMAC-SHA256, keyed with the webhook_key from the registration, of "cogdepot-webhook-challenge:<want id>:<nonce>". Nothing was changed. Fix the receiver and call again.

Response shape

{
  "type": "https://cogdepot.com/problems/webhook_unanswered",
  "title": "<short human-readable summary>",
  "status": 409,
  "detail": "<what happened on this occurrence>",
  "reason": "webhook_unanswered"
}

Branch on reason. The title is prose and may be reworded; reason is the stable contract.