Android SMS Gateway Application

This is a simple and small application that translates Google Cloud Messaging (GCM) events into outgoing SMS messages on your phone.

Getting Started

Follow the instructions gescribed at http://developer.android.com/google/gcm/gs.html to create your GCM Sender ID (Project ID) and API Key.
Build application from the source code using Eclipse or download it from the Releases section of this project.
Install it and launch on your phone. Put in your Sender ID and save a Registration ID so you can use it from your web app (or something).
Set up you backend application as it described below

Setting up your backend application

To send messages you will need to do a HTTP POST to https://android.googleapis.com/gcm/send as it described here: http://developer.android.com/google/gcm/http.html

Make sure you send API key from your Google Console within Authorization header and the registration_id value saved from your phone withing post body.

Here is a small sample witten in ruby:

require 'mechanize'

@agent = Mechanize.new

@agent.post 'https://android.googleapis.com/gcm/send',
                          {
                              'registration_id' => 'YOUR REGISTRATION ID VALUE',
                              'data.message' => 'YOUR MESSAGE HERE',
                              'data.number' => 'DESTINATION PHONE NUMBER HERE'
                          },
                          {
                              'Authorization' => 'key=YOUR API KEY HERE'
                          }

That's it! Make sure you have enough credits on your phone to send text messages :)