Callbacks

TeXML HTTP Request

Webhook sent as response to an HTTP Request instruction. This webhook uses Telnyx headers (telnyx-timestamp, telnyx-signature-ed25519) that are compatible with Standard Webhooks specification for SDK generation. Custom validation logic can map these to standard webhook-timestamp and webhook-signature equivalents. See https://github.com/standard-webhooks/standard-webhooks for details.

postWebhookTexmlHttpRequestWebhook

Headers

telnyx-timestampinteger required

Unix timestamp for replay attack prevention

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

telnyx-signature-ed25519string required

Ed25519 signature of timestamp|payload for verification

Base64 encoded Ed25519 signature for webhook verification - compatible with webhook-signature

Payload application/x-www-form-urlencoded

AccountSidstring required

The unique identifier of the account (user_id).

CallerIdstring

The display name of the caller (conditional, only present if caller_id_name is set).

CallSidstring required

The unique identifier of the call (call_control_id).

CallSidLegacystring required

Legacy call identifier, same as CallSid.

ConnectionIdstring required

The unique identifier of the connection.

Fromstring required

The phone number or SIP address of the caller.

Tostring required

The phone number or SIP address that was called.

Example payload

{
  "AccountSid": "f5586561-8ff0-4291-a51b-c7dfe4139ff9",
  "CallerId": "John Doe",
  "CallSid": "v3:9X2vxPDFY2RHSJ1EdMS0RHRksMTg7ldNxdjWbVr9zBjbGjGsSe-aiQ",
  "CallSidLegacy": "v3:9X2vxPDFY2RHSJ1EdMS0RHRksMTg7ldNxdjWbVr9zBjbGjGsSe-aiQ",
  "ConnectionId": "1234567890",
  "From": "+35319605860",
  "To": "+13129457420"
}

Response

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

Changes

Webhooks have no change history: a webhook is keyed by its event name rather than a path and method, so no recorded change can name it.