What happens when the same job gets dispatched twice? Let's look at a common scenario and how Laravel's ShouldBeUnique interface prevents duplicate processing.
The Problem: Duplicate Jobs in the Queue
Imagine a user double-clicks the registration submit button, or two near-simultaneous requests hit the server. Both trigger SendRegisteredUserNotification::dispatch($user), and both land in the jobs table.
The result: admins receive two identical emails for the same registration. The more jobs a queue is processing, the harder this is to catch.
ShouldBeUnique: Drop the Duplicate
Add the ShouldBeUnique interface alongside ShouldQueue. No extra methods are...