Looking for App Engine, GCM and XMPP java developer - push /pull by Google Cloud message (GCM) -
Need a small Demo from this sample:
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1)show me a small demo with API with Json
2)there must be user/driver (static users) - (user can send a message to driver , once driver accept , user must get a confirmation messages with user details.
3)Server(App engine) must be updated through API