What protocol and methods does Signals support for webhooks?

Catalyst Signals supports only the HTTPS protocol and the methods POST, GET, PUT, PATCH, DELETE, and OPTIONS for webhooks.

You select the HTTPS method and enter the endpoint URL when you create the webhook. In the webhook’s Additional Settings, you can also set a dispatch rate limit between 1 and 300 HTTPS calls per second. The default is 300 per second.