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WEBHOOK
fax.sending.started
{
  "data": {
    "event_type": "fax.sending.started",
    "id": "95479a2e-b947-470a-a88f-2da6dd07ae0f",
    "occurred_at": "2020-05-05T13:08:22.039204Z",
    "payload": {
      "connection_id": "234423",
      "direction": "outbound",
      "fax_id": "f8338808-3dc6-4f2b-942a-5d1f39255784",
      "from": "+17733372107",
      "original_media_url": "http://www.example.com/fax.pdf",
      "status": "sending",
      "client_state": "aGF2ZSBhIG5pY2UgZGF5ID1d",
      "to": "+15107882622",
      "user_id": "19a75cea-02c6-4b9a-84fa-c9bc8341feb8"
    },
    "record_type": "event"
  },
  "meta": {
    "attempt": 1,
    "delivered_to": "https://www.example.com/webhooks"
  }
}

Documentation Index

Fetch the complete documentation index at: https://developers.telnyx.com/llms.txt

Use this file to discover all available pages before exploring further.

Authorizations

​
Authorization
string
header
required

Bearer authentication header of the form Bearer <token>, where <token> is your auth token.

Headers

​
telnyx-timestamp
integer<int64>
required

Unix timestamp (seconds since epoch) of when the webhook was sent - compatible with webhook-timestamp Unix timestamp for replay attack prevention

​
telnyx-signature-ed25519
string
required

Base64 encoded Ed25519 signature for webhook verification - compatible with webhook-signature Ed25519 signature of timestamp|payload for verification

Body

application/json
​
data
object
​
meta
object

Metadata about the webhook delivery.

Response

200

The server must return an HTTP 200, otherwise we will reattempt delivery at the failover webhook URL.