nginx http and ws proxy

nginx.conf

location /ws {
    proxy_pass http://http://178.33.123.109:8080/ws;
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "Upgrade";
    proxy_set_header Host $host;
}

location /api {
   rewrite /api/(.*) /$1  break;
   proxy_pass http://http://178.33.123.109:8080/api;
}