WSS graphql subscripiton issue on Nodejs

We have used cloudfare for SSL reverse proxy. so we didn't used https module in the apollo server. what should i do for WSS endpoint ? Is it necessary to integrate SSL for WSS endpoint ? Using only http module for create server in graphql server .

Start by reviewing the Apollo server's HTTP setup and the Cloudflare SSL reverse-proxy configuration described in the issue. Investigate how the WSS endpoint is expected to be configured when the server uses only the HTTP module. Done means a clear, documented answer about the required SSL setup for WSS.

Written by the indexing model from the issue text.