You will need to provide a webhook endpoint to Zeta, where Zeta will send the event payloads against the subscribed events. Zeta will register the webhook endpoint and share a secret token with you to validate the incoming webhook messages. Using Fusion APIs, you can subscribe to an event. See Configure Webhooks to find more details on webhook setup.
With every subscribed events, Zeta triggers an HTTP POST call and sends an X-Zeta-HMAC HTTP Header along with the event message. This header is used to validate the incoming messages coming from the trusted source
Zeta sends an X-Zeta-HMAC HTTP Header in the event payload. To verify that an incoming message comes from Zeta, generate a HMAC signature and compare with X-Zeta-HMAC. See Configure Webhooks to find more details on inbound webhook validation. No, this functionality is in the early adopter stage.
Zeta uses a range of IP addresses that you may consider to white-list. Contact Zeta Support to know the complete list of IPs.
No, However this is part of our roadmap. Contact Zeta Support for more info.