Proper use of shelf_route's Routeable and Router#addAll.

test_server.dart

import 'dart:async' show runZoned;

import 'package:shelf/shelf.dart' as shelf;
import 'package:shelf/shelf_io.dart' as io;
import 'package:shelf_route/shelf_route.dart';

void main() {
  final mainRouter = router()
    // localhost:9999/foo works, but not localhost:9999/bar
    ..addAll(new MyRouteable('/foo'))
    ..addAll(new MyRouteable('/bar'));
    /* both paths work
    ..addAll(new MyRouteable('/'), path: '/foo')
    ..addAll(new MyRouteable('/'), path: '/bar');
    */
  final handler = mainRouter.handler;

  runZoned(() {
    print('Server ready');
    io.serve(handler, '0.0.0.0', 9999);
  });
}

class MyRouteable extends Routeable {
  final String _path;

  MyRouteable(this._path);

  @override
  createRoutes(Router router) {
    router.get(_path, _handle);
  }

  shelf.Response _handle(shelf.Request request) {
    return new shelf.Response.ok('Hello from $_path');
  }
}