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How to subscribe to platform events in Lightning?
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.
How does the empapi component work in Lightning?
The empApi component provides access to methods for subscribing to a streaming channel and listening to event messages. The empApi component uses a shared CometD-based Streaming API connection, enabling you to run multiple streaming apps in the browser for one user.
What kind of components are used in Lightning?
The connection is not shared across user sessions. As of Spring ’19 (API version 45.0), you can build Lightning components using two programming models: the Lightning Web Components model, and the original Aura Components model. Lightning web components are custom HTML elements built using HTML and modern JavaScript.
How to create a lightning card in Salesforce?
How to display a read only record in Lightning aura?
To display a read-only record with a custom layout, use the lightning:recordViewForm component. To compose a form field, use lightning:outputField components, which maps to a Salesforce field by using the fieldName attribute.
How to pause an event in Lightning aura?
If paused, the event is not handled until event.resume () is called. You can pause an event in the capture or bubble phase only. For more information, see: For example, you can prevent a lightning:button component from submitting a form when it’s clicked. You can resume a paused event in the capture or bubble phase only.
How are custom events handled in the Lightning component framework?
The Lightning Component Framework uses an event-driven architecture and provides an infrastructure for developers to create their own custom Lightning events. Event-driven programming is a programming paradigm that allows developers to write functions to respond to fired events.