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I am developing mobile client for emailing service. One of the key features is notifications about new messages in the mailbox. As recommended by GCM architecture guidelines we are using a "Pusher" that is responsible for sending messages to the Google servers once we received a new message. The issue is that testing process has reported about serious problems with push notification delivery to devices.
So the question: is there an approaches for monitoring average statistics about push notification delivery percentage, time etc? Or maybe somebody have experience in how to set up test environment for efficient monitoring of how much notifications are getting lost during the application work?
All the "tips&tricks" related to the improving Android GCM experience are welcome.
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FCM is a cloud platform that provides messages and push notifications for operating systems- ios and Android, and websites as well. Google Cloud Messaging is a messaging service that enables the message transfer from server to clients apps.
The GCM server and client APIs are deprecated and will be removed as soon as May 29th, 2019. Google recommends upgrading to Firebase Cloud Messaging (FCM) sooner rather than later to begin taking advantage of the new features available in FCM.
Google Cloud Messaging (GCM) is a service that allows you to send push notifications from your server to your users' Android devices, and also to receive messages from devices on the same connection.
WhatsApp(and several other Apps) rely upon GCM/FCM(as option 1 - the default) as it is present as a system App on lot of devices and therefore holds a special status where it is very less likely to be killed unlike a normal App. For devices that do not have play services, your custom socket connection is relied upon.
Google claims that the processing at their GCM server takes less than a millisecond. Link below for a great video on GCM from Google's developer. And it's believable coz I could get push notifications almost instantaneously using my company's server to my device now.
http://www.youtube.com/watch?v=YoaP6hcDctM
They don't guarantee delivery, but they try for a max of 4 weeks to deliver the message depending on the duration you set in the message you send to Google's GCM servers and if you wish to let Google keep the data for eventual delivery of message to the device in case the device was offline when the message was to be delivered.
However, there are certain conditions under which the GCM messages are not delivered.
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