Documentation Aerogear API documentation & specifications.

AeroGear UnifiedPush Message Format - Unstable

The UnifiedPush Server allows sending messages to the native and non-native Push APIs. Development version


curl -u "{PushApplicationID}:{MasterSecret}"
   -v -H "Accept: application/json" -H "Content-type: application/json" 
   -X POST
   -d '{
       "criteria": {
         "variants" : ["c3f0a94f-48de-4b77-a08e-68114460857e", "444939cd-ae63-4ce1-96a4-de74b77e3737" ....],
         "alias" : ["", "", ....],
         "categories" : ["someCategory", "otherCategory"],
         "deviceType" : ["iPad", "AndroidTablet"]
       "message": {
         "content-available" : true,
         "action-category" : "some_category",
         "simple-push": "version=123",
         "user-data": {
            "someKey":"some value",
            "anotherCustomKey":"some other value"
         "windows": {                                                
            "type": "tile",                                         
            "duration": "short",                                    
            "badge": "alert",                                       
            "tileType": "TileWideBlockAndText01",                   
            "images": ["Assets/test.jpg", "Assets/background.png"], 
            "textFields": ["foreground text"]                       
       "config": {
         "ttl" : 3600,


Message Format

The message format is very simple: A generic JSON map is used to sent messages to Android, iOS and Windows devices.

  • ttl Specifies in seconds the time-to-live for the submitted notification. This value is supported by APNs and GCM. If a device is offline for a longer time than specified by the ttl value, the supported Push Networks may not deliver the notification.

  • content-available is an iOS specific argument to mark the payload as ‘content-available’. The feature is needed when sending notifications to Newsstand applications and submitting silent iOS notifications (iOS7)

Message Object

The applications on the devices will receive the JSON map and are responsible for performing a lookup to read values of the given keys.

iOS special keys

If the JSON map contains one of the following reserved keywords, Apple specific hooks will be invoked on the device:

  • alert (triggers a dialog, displaying the value - no iOS API needs to be invoked by the app developer)
  • sound (plays a given sound - no iOS API needs to be invoked by the app developer)
  • badge (sets the value of the badge icon - no iOS API needs to be invoked by the app developer)
  • content-available (iOS7 feature for submitting silent iOS notifications)
  • action-category (iOS8 feature for interactive notifications)

Android special keys

None! The JSON map is submitted as it is, directly to the device. There are no Android specific keywords.

Cordova Android special keys

To make the user experience the same on iOS and Android, for cordova users, we use the iOS alert ‘key’ on Android as well to generate a notification for you. And we’ve introduced a ‘title’ that can optionally be used for the title of this notification, if none is specified the application name will be used like on iOS.

Windows special keys

For Windows we also support sending toast, tile, badge and raw notifications. For MPNS and WNS to keep the message uniform the first text for the message template is the value from alert and for a numeric badge we use the main badge field. Of course you could add criteria to only select Windows devices. If you don’t specify the Windows section of the message a toast notification is send with the alert as the content. More information about the windows message format

SimplePush Object

For SimplePush an extra simple-push object is provided. This key is only used for SimplePush variants. The version is submitted to all connected client, that are subscribed on their matching channels.

Query component

Currently the Server will support the following query criteria:

  • variants: A list of one or more mobile variant ID’s to identify a particular PushApplication variant (e.g. HR Android, HR iPad).
  • alias: A list of one or more identifiers (such as email or username) to send messages to ALL devices of the user(s). The alias needs to be stored, when the device is registering itself with the server.
  • categories: Helps to tag the current client with multiple categories. Gives a semantic meaning to a registered Installation.
  • deviceType: A list of raw device types that should receive the message (e.g. Coupon only for iPad and AndroidTablets). The deviceType needs to be stored when the device is registering itself with the server.

NOTE: All these query criterias are optionnal. If no criterias are passed it will act as a broadcast send, where all clients are notified.