Websockets token authentication using middleware and express in node.js

Question

I use node.js, express and express-ws that is based on ws

Express-ws allows to create express-like endpoints for websockets.

I am looking for a solution to auth

Answer 1

On your client side, you should pass an array of strings instead of object, but you must set a header for your HTTP response with a key and value:

key : headeSec-WebSocket-Protocol
value : corresponding protocol used in front.