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.
If you've found an error in this project's code, please file an issue: https://github.com/google/gcm/issues
Copyright 2015 Google, Inc.
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