simple redirect by uri

nginx.conf

    location /api {
        rewrite ^/api(.*) $1 break;
        proxy_pass        http://localhost:8084;
        proxy_set_header  X-Real-IP $remote_addr;
        proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header  Host $http_host;
    }