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Editorial Team
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Asked: 2026-05-28T13:52:16+00:00

I’m trying to write the server side of my android app that uses C2DM.

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I’m trying to write the server side of my android app that uses C2DM. I’m going to write it in php. I basically am just doing tests right now. I copied the chrome to phone example for the actual android app and modified it to my liking. Right now my biggest question is the registration.

Let me get everything straightened out.

When registering the device for the first time, the app talks directly to my server. The server grabs the deviceid and responds back with a 200. Right?

So, on the php side of things, I grab the device id like $deviceid = $_POST[‘deviceId’] Right?
add it to my database. then respond back to the app.. How exactly do I send a particular response back? I assume in the header? I’m unsure how to do that.

Please confirm or deny that I’m on the right track and clear up any confusion.

Thanks for the help.

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1 Answer

  1. Editorial Team

    You don’t respond back to the app. You must register your server with google’s servers to get a server authentication token. You then use that server token and the device token in a post request to google’s C2DM service to have google’s servers send a push notification to the phone. Your app and your server never directly communicate when a push notification is sent in C2DM, it is all done through google, yet you need to implement a mechanism for your server to know the device id of the device it wants to send a message to.

    This is a pretty detailed guide, though the server code is in Java:
    http://www.vogella.de/articles/AndroidCloudToDeviceMessaging/article.html

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