server {
  listen 80;

  location /api {
    proxy_pass http://friendsserver:4000;

    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Host $host;

    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";
  }

  location /socket.io {
    proxy_pass http://friendsserver:4000;

    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Host $host;

    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";

  }

  location / {
    root  /usr/share/nginx/html;
    index index.html index.htm index.nginx-debian.html;
    try_files $uri $uri/ /index.html;   
  }
}