{
  ...
  "resources": [
    {
      ...
      "resources": [
        {
          "apiVersion": "2015-08-01",
          "name": "appsettings",
          "type": "config",
          "dependsOn": [
            "[resourceId('Microsoft.NotificationHubs/namespaces/notificationHubs', parameters('notificationHubNamespaceName'), parameters('notificationHubName'))]",
            "[resourceId('Microsoft.Web/sites', parameters('myWebsiteName'))]"
          ],
          "properties": {
            "NotificationHubConnectionString": "[listKeys(resourceId('Microsoft.NotificationHubs/namespaces/notificationHubs/authorizationRules', parameters('notificationHubNamespaceName'), parameters('notificationHubName'), 'DefaultFullSharedAccessSignature'), providers('Microsoft.NotificationHubs', 'namespaces/notificationHubs').apiVersions[0]).primaryConnectionString]",
            "NotificationHubPath": "[parameters('notificationHubName')]"
          }
        }
      ]
      ...
    }
  ]
  ...
}