Awesome Dart web server

server.dart

#import('dart:io');
#import('dart:isolate');

void main() {
  var type = 'fast';

  var args = new Options().arguments;
  if (args.length > 0) {
    type = args[0];
  }
  print('starting server type $type');

  var server = new HttpServer();
  server.defaultRequestHandler = (request, response) {
    print('got request');

    switch (type) {
      case 'fast':
        response.outputStream.writeString('Okey dokey');
        response.outputStream.close();
        break;

      case 'slow':
        var i = 0;
        new Timer.repeating(1000, (_) {
          response.outputStream.writeString('drip ${i++}\n');
        });
        break;

      case '404':
        response.statusCode = 404;
        response.reasonPhrase = "Couldn't find it, dude.";
        break;
    }
  };

  server.listen('127.0.0.1', 8080);
  print('listening on port ${server.port}');
}