web_socket_channel 1.0.10

StreamChannel wrappers for WebSockets. This package provides a cross-platform WebSocketChannel API, a cross-platform implementation of that API that communicates over an underlying StreamChannel, IOWe [...]

example/example.dart

// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

import 'package:web_socket_channel/io.dart';
import 'package:web_socket_channel/status.dart' as status;

void main() async {
  final channel = await IOWebSocketChannel.connect("ws://localhost:1234");

  channel.stream.listen((message) {
    channel.sink.add("received!");
    channel.sink.close(status.goingAway);
  });
}