Notifications

Retrieve message delivery notifications, or receive real-time message update notifications through a customer webhook.

GET /v1/updates returns the latest notifications for messages sent from the account, and can be filtered by msgid, by event type (message, isTyping, messageStatus, response, subscribed, unsubscribed, fallback), and ordered ascending or descending by date. Each notification carries a messageStatus such as pending, dispatched, sent, delivered, displayed, undelivered, rejected, redispatched, buffered, deleted, or failed.

Alternatively, register a webhook URL to have these same payloads pushed to your platform as they happen, instead of polling. Every webhook call includes an X-Msg-Api-Signature header - a Base64-encoded SHA-512 hash of the payload and your verify token - so you can validate that the notification genuinely originated from HORISEN.