How to authenticate client on erlang cowboy websocket?

Question

We have used Erlang/Cowboy to develop a simple chatting service based on WebSockets. Right now, We are using localhost:8080 to connect server. I want to do user authentication, that will be done based on the URL parameter, and it will return user id or none for the connection. How to do that?

Answer 1

Before the websocket exchange, you can ask a token to your application and use it with your websocket client.