private async Task <List <EventGridWebHookResult> > HandleCloudEvent(string jsonContent, CancellationToken token)
{
var tasksExeptions = new List <EventGridWebHookResult>();
EventGridWebHookResult result = null;
try
{
var @event = JsonConvert.DeserializeObject <CloudEvent <object> >(jsonContent);
object messageEventData = null;
var webhook = _options.WebHooksRegistrations.FirstOrDefault(x => {
try
{
messageEventData = JsonConvert.DeserializeObject(@event.Data.ToString(), x.EventType, new JsonSerializerSettings {
MissingMemberHandling = MissingMemberHandling.Error
});
}
catch
{
return(false);
}
return(messageEventData != null && x.EventType == messageEventData.GetType() && x.EventGridType == @event.EventType);
});
if (webhook == null)
{
throw new ArgumentException($"Can't find a Event Grid Webhook for this grid event: {@event.EventType}");
}
var service = webhook.Factory(_serviceProvider);
var method = webhook.WebhookType.GetMethod("ProcessEventAsync");
result = await(Task <EventGridWebHookResult>) method.Invoke(service, parameters: new object[] { messageEventData, token });
}
catch (Exception ex)
{
tasksExeptions.Add(new EventGridWebHookResult(ex));
}
finally
{
if (_options.ViewerHubContextEnabled)
{
var details = JsonConvert.DeserializeObject <CloudEvent <dynamic> >(jsonContent);
// CloudEvents schema and mapping to
// Event Grid: https://docs.microsoft.com/en-us/azure/event-grid/cloudevents-schema
await _hubContext.Clients.All.SendAsync(
"gridupdate",
details.EventId,
details.EventType,
details.Source,
details.EventTime,
jsonContent,
result?.Exception.Message ?? "success"
);
}
if (result?.Exception != null)
{
tasksExeptions.Add(result);
}
}
return(tasksExeptions);
}
private async Task <EventGridWebHookResult> ProcessGridEvent(JToken jtEvent, CancellationToken token)
{
EventGridWebHookResult result = null;
try
{
var @event = JsonConvert.DeserializeObject <GridEvent <object> >(jtEvent.ToString());
object messageEventData = null;
var webhook = _options.WebHooksRegistrations.FirstOrDefault(x =>
{
try
{
messageEventData = JsonConvert.DeserializeObject(@event.Data.ToString(), x.EventType, new JsonSerializerSettings {
MissingMemberHandling = MissingMemberHandling.Error
});
}
catch
{
return(false);
}
return(messageEventData != null && x.EventType == messageEventData.GetType() && x.EventGridType == @event.EventType);
});
if (webhook == null)
{
throw new ArgumentException($"Can't find a Event Grid Webhook for this grid event: {@event.EventType}");
}
var service = webhook.Factory(_serviceProvider);
var method = webhook.WebhookType.GetMethod("ProcessEventAsync");
result = await(Task <EventGridWebHookResult>) method.Invoke(service, parameters: new object[] { messageEventData, token });
}
catch (Exception ex)
{
result = new EventGridWebHookResult(ex);
}
finally
{
if (_options.ViewerHubContextEnabled)
{
// Invoke a method on the clients for
// an event grid notification.
var details = JsonConvert.DeserializeObject <GridEvent <dynamic> >(jtEvent.ToString());
await _hubContext.Clients.All.SendAsync(
"gridupdate",
details.Id,
details.EventType,
details.Subject,
details.EventTime.ToLongTimeString(),
jtEvent.ToString(),
result?.Exception.Message ?? "success");
}
}
if (result?.Exception != null)
{
return(result);
}
return(null);
}
