Node.js - Slim to Express

$app->get('/users', function() use($app, $db_postgres){

  $sql = "SELECT * FROM tbl_users WHERE type='USER' ORDER BY name";

  $rs = pg_query( $db_postgres, $sql );

  $users = array();

      while($user = pg_fetch_object($rs)){

          $users[] = $user;

      };

  $result = array(

      'status'  => 'success',

      'code'    => 200,

      'data'    => $users

  );

  echo json_encode($result);

});

router.get('/users', (req, res) => {

    client_pg.connect()

    client_pg.query("SELECT * FROM tbl_users WHERE type='USER' ORDER BY name", (err, rows, fields) => {

    if(!err) {

      res.json(rows);

    } else {

      console.log(err);

    }

  });

});

if (!err) {

  var result = { Status : 'Sucess", Code: 200, Data : rows }

  res.json(result);

}

...

res.json({

    status: 'success',

    code: 200,

    data: rows

})

*ngFor="let row of response.data"

getUsers(){

        return this._http.get(this.url + 'users').map(res => res.json());

    }

@Component({

    selector: 'user-list',

    templateUrl: '../views/users-list.html',

    providers: [UserService]

})

export class UserListComponent {

    public titulo: string;

    public users: User [];

    constructor(

        private _route: ActivatedRoute,

        private _router: Router,

        private _userService: UserService

    ) {

        this.titulo = 'User List';

    }

    ngOnInit() {

        console.log('Load user-rms-list.component.ts successfully');

        this._userService.getUsers().subscribe(

            result => {

                if (result.code !== 200) {

                    console.log(result);

                }else{

                    this.users = result.data;

                }

            },

            error => {

                console.log(<any>error);

            }

        );

    }