Google Cloud Messaging
Google Cloud Messaging (GCM) is a service that lets developers send data from
servers to users' devices, and receive messages from devices on the same
connection. The service provides a simple, lightweight mechanism that servers
can use to tell mobile applications to contact the server directly to fetch
updated application user data. The GCM service handles all aspects of queueing
of messages and delivery to client applications running on target devices.
This project contains client libraries and samples to help developers interface
with and explore the Google Cloud Messaging APIs.
For more information on GCM, including an overview and integration
instructions, see Cloud Messaging.
For help getting started with GCM, see the
GCM Quickstart for Android
or the GCM Quickstart for iOS.
Support
If you've found an error in this project's code, please file an issue:
https://github.com/google/gcm/issues
License
Copyright 2015 Google, Inc.
Licensed to the Apache Software Foundation (ASF) under one or more contributor
license agreements. See the NOTICE file distributed with this work for
additional information regarding copyright ownership. The ASF licenses this
file to you under the Apache License, Version 2.0 (the "License"); you may not
use this file except in compliance with the License. You may obtain a copy of
the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
License for the specific language governing permissions and limitations under
the License.