i did according to this steps
but
Step 2: Hooking up ionic.io
In the .config of your project’s www/js/app.js file, add a gcm_id field with your app’s
GCM sender ID as shown below.
.config(['$ionicAppProvider', function($ionicAppProvider) {
// Identify app
$ionicAppProvider.identify({
// The App ID for the server
app_id: 'YOUR_APP_ID',
// The API key all services will use for this app
api_key: 'YOUR_PUBLIC_API_KEY',
// The GCM project number
gcm_id: 'YOUR_GCM_ID'
});
}])
what is the app_id and API key?
google app id and google API key or IONIC app id and IONIC api key?