Chat & Voice platforms

I was trying to setup webhook in the messenger and in the callback url i tried to put this https://rasa.example.com/app/webhook and in verify token I tried to put rasa-bot still it was giving problem with the URL(Bad Gateway) and in bot framework emulator I cannot figure out what to put in endpoint URL as I tried to put this https:///localhost:5005/webhooks/botframework/webhook it was giving me message only absolute URLS are supported

Can u just help me in this part as these things are not clear in documentation or can we have a call over skype