Dispatch Jobs After Transaction Commit with DB::afterCommit()

Use DB::afterCommit() to defer job dispatching until surrounding database transactions complete successfully.

Dispatching queue jobs inside active DB transactions can trigger race conditions where background workers run before the transaction commits. DB::afterCommit() delays side effects until commit finishes.

use Illuminate\Support\Facades\DB;
use App\Jobs\ProcessPayment;

DB::transaction(function () use ($order) {
    $order->save();
    
    // Guarantees worker receives committed database records
    DB::afterCommit(fn () => ProcessPayment::dispatch($order));
});

• Prevents race conditions where queue workers query uncommitted database rows
• Discards callbacks automatically if transaction rolls back
• Can be set on jobs using public $afterCommit = true;