Microsoft Push Notification Service
Overview of the MPNS architecture.
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| Developer(s) | Microsoft |
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| Target platform(s) | Windows Phone 8 |
| Programming language(s) | C# |
| Status | Active |
| License | Closed-source |
Microsoft Push Notification Service (commonly referred to as MPNS) is a mobile service developed by Microsoft. It allows for developers to send push data from servers to Windows Phone applications. The MPNS is natively supported on applications that target the Windows Phone 8 Operating System. Microsoft announced the Windows Notification Service for Windows 8 and Windows Phone 8.1 in 2011, effectively replacing the MPNS with this service. The MPNS can be used on applications that are installed on Windows Phone 8.1 if the source code is migrated to a Microsoft Silverlight application, modified to target Windows Phone 8.1, and was already registered to use the MPNS before the upgrade.
The MPNS is natively designed for use with Windows Phone 8 applications that implement the service. It allows for developers to send toast notifications, as well as update the tile image and flip notification text on the application's Windows Metro start screen tile. This is accomplished by developers by sending POST messages to the MPNS server network with the request and relevant content. A user typically must allow for data or notifications to be received before an application will register with the MPNS for notification data. The MPNS can be implemented to send notification data using an encrypted channel if the developer purchases an SSL certificate from a third-party provider and uploads its private key and certificate data to their Microsoft Developer Portal account. Otherwise, the MPNS can be implemented to send notification data using an unencrypted channel. Applications that utilize unencrypted channels have rate and size limitations with all notification requests and content that is updated or displayed to the device. These limits can be lifted by purchasing an SSL certificate and switching to utilize MPNS encryption.
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