How to Subscribe to Salesforce Platform Events with Mule 4
- Subscribe to Platform Events. Follow below steps to develop a mule flow to subscribe to Salesforce Platform events with…
- Subscribe Channel Listener. Note: Read how to publish Salesforce Platform events with Mule to learn more. Step 3: Now…
- Replay Channel Listener. You can also use Replay channel listener…
Table of Contents
How do I create a platform event in Salesforce?
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. The Developer Console automatically adds the after insert event in the trigger template.
How to subscribe to Salesforce Platform events using replay?
You can also use Replay channel listener operation to subscribe to Salesforce Platform events. You can subscribe events based on Replay conditions such as ALL, ONLY_NEW and FROM_REPLAY_ID .
How do I subscribe to apex events in Salesforce?
With platform events, the process is similar. You simply write an after insert Apex trigger on the event object to subscribe to incoming events. Triggers provide an autosubscription mechanism in Apex. No need to explicitly create and listen to a channel.
How to subscribe to Salesforce Platform events with mule 4?
Follow below steps to develop a mule flow to subscribe to Salesforce Platform events with Mule 4. Step 1: Add Salesforce Subscribe channel listener and configure as shown below: Step 2: Log the actual platform event which will be in the Object format like below:
How do I add a subscription to platform event?
Subscribe to Platform Event Notifications with Apex TriggersClick 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 subscribe to a platform event in workbench?
Subscribing to Platform Event via WorkbenchLogin to wokbench.developerforce.com.Navigate to Streaming Push Topics under Queries.Select Generic Subscriptions.Fill the Subscription field in the format /event/{EVENT_NAME}In the above example, it should be /event/Test_Event__e.Click the subscribe button.
How do I get platform events in Salesforce?
Receive platform events in processes, flows, Apex triggers, or CometD clients. Add Apex tests to test platform event subscribers. Before you can package or deploy Apex code, including triggers, to production, it must have tests and sufficient code coverage. Add Apex tests to provide code coverage for your triggers.
How can external system Subscribe to platform events?
Subscribe to platform events with the empApi component in your Lightning web component or Aura component. The empApi component provides access to methods for subscribing to a streaming channel and listening to event messages. Use CometD to subscribe to platform events in an external client.
How do you call a platform event from flow?
Go to Setup à Enter and choose Flows. Click on New Flow and choose Platform Event-Triggered Flow. Choose respective Platform event object to subscribe in the Start element. Drag and drop Create record element and capture the published Platform event field values with the respective Salesforce object.
Can we query platform event in Salesforce?
No SOQL Support You can’t query event notifications using SOQL.
Can Salesforce subscribe to external events?
You can publish event messages from a Force.com app or an external app using Apex or Salesforce APIs and you can subscribe from the Salesforce or external apps or use long polling with cometD as well.
What is platform event in Salesforce example?
Platform events are secure and scalable messages that contain data. Publishers publish event messages that subscribers receive in real time. To customize the data published, define platform event fields. Platform events are part of Salesforce’s enterprise messaging platform.
How do I test a platform event in Salesforce?
Add Apex tests to test platform event subscribers. Before you can package or deploy Apex code, including triggers, to production, it must have tests and sufficient code coverage….Testing Your Platform Event in ApexEvent and Event Bus Properties in Test Context. … Deliver Test Event Messages. … Test Retried Event Messages.
How do I publish a platform event in Salesforce?
Publish Platform Event with Flow Navigate to Setup > Process Automation > Flows select New Flow and then Record-Triggered Flow . Use the Freeform to create the new Flow. Select Opportunity as Object and define A record is created as the trigger before we continue. Create a Salesforce Flow to publish a Platform Event.
What is CometD in Salesforce?
CometD is a scalable HTTP-based event routing bus that uses an AJAX push technology pattern known as Comet. It implements the Bayeux protocol. Long polling, also called Comet programming, allows emulation of an information push from a server to a client.
How do you use an EMP connector?
No ResultsPrerequisites.Step 1: Create an Object.Step 2: Create a PushTopic.Step 3: Download and Build the Project.Step 4: Use the Connector with Username and Password Login.(Optional) Step 5: Use the Connector with OAuth Bearer Token Login.Learn More About EMP Connector.
How to publish platform events in Apex?
Before you can package or deploy any Apex code (including triggers) to production, your Apex code must have tests. To publish platform events in an Apex test, enclose the publish statements within Test.startTest and Test.stopTest statements.
What is platform event trigger?
A platform event trigger runs in its own process asynchronously and isn’t part of the transaction that published the event. As a result, there might be a delay between when an event is published and when the trigger processes the event. Don’t expect the result of the trigger’s execution to be available immediately after event publishing.
Why do we use owner ID in Salesforce?
Because platform event triggers don’t run under the user who executes them (the running user) but under the Automated Process system user , we set the owner ID field explicitly in our CloudNewsTrigger example. We used the ID of a sample user queue called Regional Dispatch for the trigger example. If you create a Salesforce record with an OwnerId field in the trigger, such as a case or opportunity, explicitly set the owner ID. For cases and leads, you can, alternatively, use assignment rules to set the owner.
How to view trigger state?
You can view the state of all event triggers on the Platform Event Definition Detail page in Setup. Under Subscriptions, each active trigger is listed along with execution information and the state. Information includes the replay ID of the last published and last processed events. The state indicates whether the trigger is running or is disconnected from the subscription because of unrecoverable errors or insufficient permissions. The Error state is reached only when a trigger has been retried the maximum number of times. The following screenshot shows the Subscriptions related list on the Cloud News event detail page.
What is an Apex trigger?
You simply write an after insert Apex trigger on the event object to subscribe to incoming events. Triggers provide an autosubscription mechanism in Apex. No need to explicitly create and listen to a channel. Triggers receive event notifications from various sources—whether they’re published through Apex or APIs.
What is trigger in Apex?
A trigger processes platform event notifications sequentially in the order they’re received. The order of events is based on the event replay ID. An Apex trigger can receive a batch of events at once. The order of events is preserved within each batch. The events in a batch can originate from one or more publishers.
How to set up Apex trigger?
Click the Setup icon, select Developer Console, and click File | New | Apex Trigger.
Subscribe to Platform Events
Follow below steps to develop a mule flow to subscribe to Salesforce Platform events with Mule 4.
Subscribe Channel Listener
Step 1: Add Salesforce Subscribe channel listener and configure as shown below:
Replay Channel Listener
You can also use Replay channel listener operation to subscribe to Salesforce Platform events. You can subscribe events based on Replay conditions such as ALL, ONLY_NEW and FROM_REPLAY_ID .
Conclusion
We hope this article helped you to learn how to subscribe to Salesforce platform events with Mule 4.
How to test the instant notification app?
To test the instant notification app, you use an external application, the Bear Watch Heroku app. Open the Bear Watch Heroku app. Click Log In. When you are prompted to allow access to the Bear Watch application, click Allow. Resize and position your browser windows so that you can see both your Salesforce Sales …
What is onReceiveNotification?
onReceiveNotification — This function is called when a platform event message is received. This function formats the platform event data, adds it to the notification history, and displays a toast if you have not muted notifications.
What is channel attribute?
The channel attribute defines the channel to be used for subscription to Notification__e events.
Can you see Salesforce and Bear Watch at the same time?
Resize and position your browser windows so that you can see both your Salesforce Sales app and the Bear Watch app at the same time. You might have to refresh the home page of the Sales app to receive new notifications.
