nginx redirect multiple domains

gistfile1.txt

server {
    listen 80;
    server_name dgmates.com dgmates.com.sg www.dgmates.com.sg dgmates.sg www.dgmates.sg;
    return 301 http://www.dgmates.com$request_uri;
}

server {

    server_name www.dgmates.com;
    access_log            /var/log/nginx/dgmates.access.log;

    location / {

      proxy_set_header        Host $host;
      proxy_set_header        X-Real-IP $remote_addr;
      proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;
      proxy_set_header        X-Forwarded-Proto $scheme;

      # Fix the “It appears that your reverse proxy set up is broken" error.
      proxy_pass          http://localhost:8080;
      proxy_read_timeout  90;

      proxy_redirect      http://localhost:8080 http://www.dgmates.com;
    }
  }