Contents
Can we query on platform events?
For platform events, you can query usage data for these metrics.
How do you trigger a platform event?
After an event message is published, the after insert trigger is fired. To create a platform event trigger, use the Developer Console. Click the Setup icon, select Developer Console, and click File | New | Apex Trigger. Provide a name and choose your event for the sObject, and click Submit.
How do I find a platform for an event record?
View Event Subscribers From Setup, enter Platform Events in the Quick Find box, then select Platform Events. Click your event’s name. On the event’s definition page, the Subscriptions related list shows all the active triggers, processes, and platform event–triggered flows that are subscribed to the platform event.
How do you test a platform event?
Add Apex tests to provide code coverage for your triggers.
- Event and Event Bus Properties in Test Context. In test context, event messages and the event bus have different properties.
- Deliver Test Event Messages. Deliver test event messages after the Test.
- Test Retried Event Messages.
How does a platform event work?
Platform events are based on a publish-subscribe architecture. Apps can publish platform events by using Apex or one of the Salesforce platform APIs (SOAP, REST, or Bulk API). In addition, declarative tools such as the Lightning Process Builder or Cloud Flow Designer can publish platform events.
What is a recursive trigger and how to avoid it?
A recursive trigger is one that performs an action, such as an update or insert, which invokes itself owing to, say something like an update it performs. eg in a before trigger, if you select some records and update them, the trigger will invoke itself. To avoid, static variable ‘locks’ are used.
Handling recursive events is an age old problem which can affect any application, moreover it seems to affect SharePoint centric solutions often due to the common need to capture an update event to execute relevant business rules before re-updating the item… which of course is the start of a recursive event (or infinite loop!).
How to avoid recursive events in flow power?
To address this issue I’d recommend creating a dedicated account used as a ‘ Flow Service Account ‘. This would allow a condition to be added to the Flow that checked if the update was invoked by the identify executing the update from Flow… and if so, ignore the event, thus preventing a recursive event.
How are recursive triggers used in Salesforce Kid?
Suppose there is a scenario where one trigger perform an update operation, which results in invocation of the second trigger and the update operation in second triggers acts as triggering criteria for triggers one. In the above scenario, it will first check utility.isFutureUpdate != true from utility class.