public async Task CheckSubscriptionAsync(GraphServiceClient graphService)
{
Subscription subscription = System.Web.HttpContext.Current.Session["WebHookSubscription"] as Subscription;
if (subscription != null && subscription.ExpirationDateTime.HasValue)
{
DateTimeOffset expiration = (DateTimeOffset)subscription.ExpirationDateTime;
//check time
if (DateTimeOffset.Now.CompareTo(expiration) >= 0)
{
//delete old and recreate one
await graphService.DeleteSubscriptionAsync(subscription.Id);
subscription = await graphService.CreateSubscriptionAsync();
if (subscription != null)
{
System.Web.HttpContext.Current.Session["WebHookSubscription"] = subscription;
}
}
}
else
{
subscription = await graphService.CreateSubscriptionAsync();
if (subscription != null)
{
System.Web.HttpContext.Current.Session["WebHookSubscription"] = subscription;
}
}
}
public async Task CheckSubscriptionAsync(GraphServiceClient graphService, string accessToken)
{
Subscription subscription = System.Web.HttpContext.Current.Session["WebHookSubscription"] as Subscription;
if (subscription != null && subscription.ExpirationDateTime.HasValue)
{
DateTimeOffset expiration = (DateTimeOffset)subscription.ExpirationDateTime;
//check time
if (DateTimeOffset.Now.CompareTo(expiration) >= 0)
{
//delete old and recreate one
await graphService.DeleteSubscriptionAsync(accessToken, subscription.Id);
subscription = await graphService.CreateSubscriptionAsync(accessToken);
if (subscription != null)
{
System.Web.HttpContext.Current.Session["WebHookSubscription"] = subscription;
}
}
}
else
{
subscription = await graphService.CreateSubscriptionAsync(accessToken);
if (subscription != null)
{
System.Web.HttpContext.Current.Session["WebHookSubscription"] = subscription;
}
}
}
