internal static async Task <Subscription> CreateSubscription(string baseUrl, string userId = null)
{
var graphClient = GraphHelper.GetAuthenticatedClient(string.IsNullOrEmpty(userId) ? CurrentUserId : userId, baseUrl);
var subscription = new Subscription
{
Resource = "me/mailFolders('Inbox')/messages",
ChangeType = "created",
NotificationUrl = ConfigurationManager.AppSettings["ida:NotificationUrl"],
ClientState = Guid.NewGuid().ToString(),
ExpirationDateTime = DateTime.UtcNow + new TimeSpan(0, 0, 15, 0) // shorter duration useful for testing
};
var newSubscription = await graphClient.Subscriptions.Request().AddAsync(subscription);
// This sample temporarily stores the current subscription ID, client state, and user object ID.
// This info is required so the NotificationController, which is not authenticated, can retrieve
// an access token from the cache and validate the subscription.
// Production apps typically use some method of persistent storage.
var subscriptionDetails = new SubscriptionDetails(
newSubscription.Id,
newSubscription.ClientState,
CurrentUserId,
baseUrl);
SubscriptionCache.GetSubscriptionCache().SaveSubscriptionInfo(subscriptionDetails);
return(newSubscription);
}
// This sample temporarily stores the current subscription ID, client state, user object ID, and tenant ID.
// This info is required so the NotificationController can retrieve an access token from the cache and validate the subscription.
// Production apps typically use some method of persistent storage.
public void SaveSubscriptionInfo(SubscriptionDetails subscriptionDetails)
{
if (objCache["subscription_store"] == null)
{
var subscriptionstore = new Dictionary <string, SubscriptionDetails>();
subscriptionstore.Add(subscriptionDetails.SubscriptionId, subscriptionDetails);
objCache.Set(new CacheItem("subscription_store", subscriptionstore), defaultPolicy);
}
else
{
var subscriptionstore = objCache.Get("subscription_store") as Dictionary <string, SubscriptionDetails>;
subscriptionstore.Add(subscriptionDetails.SubscriptionId, subscriptionDetails);
}
}