NGINX Cookbook

How it works....

There's only one main block directive to get our simple test working, with a few key areas.

proxy_pass http://127.0.0.1:3000; 

The proxy will forward the connection back to our Express-driven test application, which we configured to listen on port 3000 of the localhost.

proxy_http_version 1.1; 

By default, proxied connections back to the Node.js application will be HTTP/1.0 only. Setting this to HTTP/1.1 allows the use of keep-alive, which means the connection between NGINX and the application remains open rather than establishing a new connection every time. On a heavily loaded system, this is much more efficient.

proxy_set_header Upgrade $http_upgrade; 
proxy_set_header Connection "upgrade"; 

The WebSocket protocol uses ...