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Configuring the Subscription

To Create a Google Cloud Messaging Subscription

  1. In the FME Server Web User Interface, select Notifications on the left. Then, select the Subscriptions tab, and click New.
  2. Provider a name for the Subscription.
  3. Specify the topics to subscribe to. When the Subscription receives messages from these topics, a GCM notification is sent to the target devices.
  4. Beside Protocol, specify Google Cloud Messaging.
  5. Specify the Google Cloud Messaging fields for the Subscription (see below).
  6. Click OK to create the Subscription.
Google Cloud Messaging Field Description
API Key The developer API key, used for authorizing the subscription to the Google Cloud Messaging service.
Registration IDs The list of target Android devices to receive notifications. Use a comma to separate multiple devices.
Content Template The notification content template.

Overriding Behavior Using Notification Keywords

By default, a Google Cloud Messaging configuration allows for delivery of notifications to a fixed set of Android devices, with its message formatted by the prescribed content template. The Google Cloud Messaging subscriber also allows you to specificy target Android devices and message format in the incoming notification. The notification keywords that enable this overriding behavior are gcm_token and subscriber_content.

Examples

The following Google Cloud Messaging Subscriber examples are based on this default configuration:

Registration IDs 
123456,abcdef
Content Template 
Message: {msg}

 

Notification Target Device(s) Message Sent to Device(s) 
{

   "msg" : "Hello, world"

}

123456
abcdef
 Message: Hello, world 
{
   "gcm_token" : "987654,fefefe",
   "msg" : "Hello, device"

}
 
987654
fefefe
 Message: Hello, device 
{

   "subscriber_content" : "Alert",
   "msg" : "Ignored"

}
 
123456
abcdef
 Alert

Demonstration App

FME Alerts is a demonstration app that showcases the capabilities of FME Server using an Apple Push subscriber. The app is available for free on the Apple App Store.

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