nginx.conf

worker_processes  1;

events {
    worker_connections  1024;
}


http {
    include       mime.types;
    default_type  application/octet-stream;

    sendfile        on;

    keepalive_timeout  65;

    server {
       listen 80;
       server_name # website.com  www.website.com;
       return 301 https://$server_name$request_uri;
    }
    server {
       listen 443 ssl;
       server_name # website.com  www.website.com;
       ssl_certificate # /etc/letsencrypt/live/*website*/fullchain.pem;
       ssl_certificate_key /etc/letsencrypt/live/*website*/privkey.pem;

       location /.well-known/acme-challenge {
             alias /var/www/.well-known/acme-challenge;
       }


       location /api/ {
             proxy_set_header   X-Forwarded-For $remote_addr;
             proxy_set_header   Host $http_host;
             proxy_pass         http://localhost:4000;
        }

        location /indexes {
             proxy_set_header   X-Forwarded-For $remote_addr;
             proxy_set_header   Host $http_host;
             proxy_pass         http://localhost:7700;
        }

        location /multi-search {
             proxy_set_header   X-Forwarded-For $remote_addr;
             proxy_set_header   Host $http_host;
             proxy_pass         http://localhost:7700;
        }

        location /ws {
             proxy_pass          http://localhost:3000;
             # This is actual websocket material
             proxy_http_version  1.1;
             proxy_set_header    Upgrade $http_upgrade;
             proxy_set_header    Connection "upgrade";
             proxy_set_header    Host $http_host;
             proxy_set_header    X-Real-IP $remote_addr;    # Client can forge this header, don't really trust it
        }
        location /socket {
             proxy_pass          http://localhost:5000;
             # Actual websocket magic
             proxy_http_version  1.1;
             proxy_set_header    Upgrade $http_upgrade;
             proxy_set_header    Connection "upgrade";
             proxy_set_header    Host $http_host;
             proxy_set_header    X-Real-IP $remote_addr;
        }
        location / {
             proxy_set_header   X-Forwarded-For $remote_addr;
             proxy_set_header   Host $http_host;
             proxy_pass         http://localhost:3000;
        }
   }
}