can anyone explain me how rasa connect with other channel through rest channel…how is the scenario works when we communicate with a website chat wedge …how is the test from the chat wedge go to rasa and the output comes to us through the website chat wedge ??
Hi @faiza_conte!!
When using the REST channel, your running rasa os or rasa x server will provide a webhook at http://<host>:<port>/webhooks/rest/webhook. Your website chat widget can POST a message to this webhook (see request format here) and will receive a response that will contain the bot response.
Alternatively you can also use the callback channel where you receive the bots response via a specified URL.
I hope this helps!! 
You can also check out the docs for this 