nginx.conf

worker_processes 5;
events {}

http {
    upstream database {
        postgres_server 127.0.0.1 dbname=test user=ricn password=mypass;
    }
    server {
        listen       8080;
        server_name  localhost;

        location / {
            echo -n "Hello World";
        }

        location /pg {
            postgres_pass   database;
            rds_json        on;

            postgres_query  HEAD GET    "SELECT * FROM test";
        }
    }
}