Chat21 is a messaging engine with a multi platform SDKs: native iOS and Android mobile SDKs and Web SDKs.
Widget, Web Chat and Native mobile apps are Chat21 modules. Chat21 relies on Google Firebase as the backend database.
Chat21 communicates with Tiledesk through webhooks. When a Chat21 event occurs - a new message arrives, a new member join a group, etc - a new Event is created and notified to Tiledesk Server. Chat21 then makes an HTTP POST request to send the Event to the Tiledesk webhook endpoint .