Salesforce Platform Developer I Certification Guide

Queueable interface

Salesforce has defined some interfaces that you can use during your development. One of them is the Queueable interface. You launch a job and place this job in a queue.

In this class, you can perform your callout in the main execute method of the class (don't forget, an interface has methods where you need to implement all of them), and you call the Queueable class from the trigger.

The benefits of a Queueable class are the support for things that the @future method doesn't have:

• It's a separate class; you can implement what you want, how you want.
• The class needs to implement the execute(QueueableContext) method. In this method, you perform the logic you need to execute.
• You can provide every type of object as a parameter—not ...