Platform Event (PE) is one such streaming API in Salesforce. It follows the fire and forget mechanism of Integration. The publisher can publish the customized payload and multiple subscribers can receive the same PE simultaneously by subscribing to that PE.
What are the different platforms in Salesforce?
With that, here are the tools you can use to build apps on Lightning Platform:
- Salesforce Environments. A secure and isolated development environment for developers and admins to test ideas, accelerate app development, and customize the platform. ...
- Heroku. It lets you extend Salesforce by building engaging experiences through custom apps. ...
- mySalesforce. ...
- myEinstein. ...
- Salesforce App Cloud. ...
How to subscribe to Salesforce platform event?
Subscribe Channel Listener. 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: The sample event would look like: Step 3: Now add Transform message to extract the event message that is encapsulated in the above Object.
How to create your first app in Salesforce?
- To create application in lightning, Click File | New | Lightning Application.
- Enter the name, and click Ok. E.g. appName.app resource. You may set name accordingly.
- Now use c:helloWorld to refer the component helloWorld.cmp using the default namespace c. If your organization has a registered namespace, you can use it to reference. ...
What is a platform event?
Platform events are the event messages that your apps send and receive. They simplify the process of communicating changes and responding to them without requiring you to write complex logic. Publishers and subscribers communicate with each other through platform events. One or more subscribers can listen to the same event and carry out actions.
What is Salesforce platform event?
Salesforce publishes standard platform events in response to an action that occurred in the org or to report errors. For example, LoginEventStream monitors user login activity and BatchApexErrorEvent reports errors encountered in batch Apex jobs.
Where are platform events in Salesforce?
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 are platform events triggered in Salesforce?
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.
How do I run a platform event in Salesforce?
After completing this unit, you'll be able to:Define a platform event.Describe how platform event messages can be published.Use an Apex method to publish an event.Publish an event using clicks in a process or flow.Publish an event using REST API by inserting an sObject.
What is a platform event message in Salesforce?
A platform event is a special kind of Salesforce entity, similar in many ways to an sObject. An event message is an instance of a platform event, similar to how a record is an instance of a custom object. Unlike custom objects, you can't update or delete event records.
What is platform event in process builder?
Processes built in Process Builder can subscribe to platform events and receive event messages published through Apex, APIs, flows, and other processes. Processes provide an autosubscription mechanism. To subscribe a process to a platform event, build the process to start when it receives a platform event message.
What is platform event triggered flow in Salesforce?
With platform event–triggered flows, you can do all your automation in one place. Users can trigger a Flow when a platform event message is received. Unlike Process Builder, users can access all available records when a Flow is invoked by the platform event message.
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.
Are platform events asynchronous?
Although platform event triggers run asynchronously, they're short-lived processes that execute in batches rather quickly. Because a platform event trigger runs in a separate transaction from the one that fired it, governor limits are reset, and the trigger gets its own set of limits.
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 give access to a platform event?
To subscribe to or publish messages to Salesforce custom platform events, you must configure permissions in your Salesforce environment.Log in to Salesforce.Under. Administer. on the left pane, click. Manage Users. ... Edit the profile to assign object permissions to the Salesforce custom platform event that you created.
How do I know if a platform event is published in Salesforce?
To get notified of the status of event publish operations, enable status events on your high-volume platform event. Then subscribe to the PublishStatusEvent standard platform event with Apex triggers or CometD clients.
What is platform event in Salesforce?
Platform events enable the flow of event messages within Salesforce and to or from external apps. Apps on the Salesforce platform use an Apex method to publish events and an Apex trigger or the empApi Lightning component to consume events. As an alternative to code, you can publish events with declarative tools, such as Process Builder and Flow Builder. External apps publish events using the sObject API and consume events using CometD. As you can see, there is a lot of flexibility in how you choose to use Platform Events!
What is platform event?
Platform events are similar to generic events but offer more powerful customization. With platform events, you can publish any custom data. You define the schema of event data at a granular level as typed fields. Also, you can use platform events in native Salesforce platform apps and external apps alike.
What is a trigger in Salesforce?
The external system publishes a platform event to alert Salesforce to the merchandise return. An event listener (a trigger) in Salesforce receives the event and performs some actions. For example, the trigger might alert the sales representative to the return, and send a confirmation email to the customer.
What happens when an opportunity closes in Salesforce?
When an opportunity closes in Salesforce, your company has won a deal with a customer. Let’s say you use vendors to ship products associated with an opportunity. Each vendor has an external app that processes shipment orders. The external app listens to platform events. When an opportunity closes, a trigger, which is part of a product order app in Salesforce, fires and publishes a platform event message. Each vendor app is notified of the event and creates a shipment order for a specific product.
What is an event in business?
Event. A change in state that is meaningful in a business process. For example, placement of a purchase order is a meaningful event, because the order fulfillment center expects to receive a notification before processing an order. Event message. A message that contains data about the event.
What is event based communication?
Event-based communication takes place in real-time—or, more accurately, in near-real time. Radio waves travel at the speed of light, but event-based software and hardware systems typically have some latencies.
Can consumers receive and react to the same events?
Any number of consumers can receive and react to the same events. When an event occurs, systems obtain this information and can react to it in near-real time. Systems that send events and others that receive the events don’t have dependencies on each other, except for the semantics of the message content.
Types of Platform Events
- 1. Standard PE
These are the predefined events provided by Salesforce itself. Some examples of Standard PE are: 1. AssetTokenEvent: Monitors OAuth 2.0 authentication activity. 2. BatchApexErrorEvent: Reports error encountered in batch apexjobs. - 2. High-Volume PE
These are custom PE used to publish and process millions of events effectively and to scale your event-based apps.
Defining Platform Events
- Below are the steps to create a custom Platform Event in Salesforce: 1. 1. In Setup, select Platform Eventsin the quick find. 2. 2. Click New Platform Event. 3. 3. Fill in the standard fields. 4. 4. Platform Events provide two types of publishing mechanisms. Publish after commit is used to publish the event only after the transaction is successfully committed. Publish Immediatelywill p…
Publishing Platform Events
- Below are several ways to publish a platform event after defining the same: 1. Publish Event Messages with Flows 2. Publish Event Messages with Processes 3. Publish Event Messages with Apex 4. Publish Event Messages via APIs Below is the code snippet to publish platform event with Apex:
Subscribing Platform Events
- Below are the several ways to receive the platform event: 1. Subscribe to Platform Event Messages with Flows 2. Subscribe to Platform Event Messages with Processes 3. Subscribe to Platform Event Notifications with Apex Triggers 4. Subscribe to Platform Event Notifications in a Lightning Component 5. Subscribe to Platform Event Notifications with CometD(Workbench)
Conclusion
- We hope you find this post helpful and will guide you to define, publish, and subscribe to platform events. To know more, don’t hesitate to connect with us. Emizentech, a Salesforce development company, is always there to serve you the best.