Questions about Windows Phone notification URIs

Question

I would like to ask some questions about Windows Phone push notification Uris, and I would appreciate if someone could answer them.

1. Uris have the same host? I mean, for example if the uri is this:

http://db3.notify.live.net/throttledthirdparty/01.00/AQH1BAJf76f1RY_CHtRmqazsAgAAAAADAQAAAAQUZm52OkRFQkNENjJCNTFENUM0RjQFBkVVTk8wMQ

The host will always be http://db3.notify.live.net/throttledthirdparty/01.00/ ?

1. The token has always the same length? Or same format? Just like this AQH1BAJf76f1RY_CHtRmqazsAgAAAAADAQAAAAQUZm52OkRFQkNENjJCNTFENUM0RjQFBkVVTk8wMQ

Beginning with AQ or ending with wMQ for example.

NOTE: I am talking about Windows Phone device, perhaps it may vary depending on the platform.

Thank you in advance

Answer 1

Microsoft don't supply info regarding the host of the notification channel for MPNS (as opposed to WNS, for Windows 8 Store Applications, in which the host always ends with the windows.com domain).

The length of the notification channel is up to 1024 characters. There is no information regarding the specific format.

When your client app detects a channel URI change, your app must send the newest URI to your service. Your service must retain only the latest channel URI for each client. Consider associating the user’s device ID with their channel URI in your service. Your service can then use the device ID to reconcile whether a channel URI is for a new user, or if it’s replacing an existing channel URI for an existing user.

Windows Phone documentation offers many examples that demonstrate how to set up an app to receive push notifications, including some that show you how you can set up an event handler to respond to changes in the channel URI. See How to Send and receive Tile Notifications for Windows Phone for one way to do this using the PushChannel_ChannelUriUpdated function.

Channel URIs may be up to 1,024 characters long.

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