Failed job handling in Laravel - Mini Project: Build & Apply

Failed Job Handling in Laravel Queues

📖 Scenario: You are building a Laravel application that processes user emails in the background using queues. Sometimes, jobs may fail due to temporary issues like network errors. You want to handle these failed jobs properly to retry or log them.

🎯 Goal: Build a Laravel queue job setup that handles failed jobs by configuring the failed jobs table, setting a retry limit, and implementing a failed job handler.

📋 What You'll Learn

Create a failed jobs database table using Laravel's migration

Configure the queue connection to use the failed jobs table

Create a queue job class with a retry limit

Implement a failed() method in the job class to handle failures

💡 Why This Matters

🌍 Real World

Handling failed jobs is essential in real-world Laravel applications to ensure background tasks are reliable and failures are tracked for fixing issues.

💼 Career

Understanding failed job handling is important for Laravel developers working on scalable applications that use queues for background processing.

1

Create the failed jobs table migration

Run the artisan command to create the failed jobs table migration file by typing php artisan queue:failed-table and then create the table by running php artisan migrate.

Laravel

# Run artisan commands to create and migrate the failed jobs table
# Your code here

Need a hint?

Use Laravel artisan commands exactly as shown to create and migrate the failed jobs table.

2

Configure queue connection to use the failed jobs table

In the config/queue.php file, set the failed array's database key to mysql and table key to failed_jobs to enable failed job logging.

Laravel

# In config/queue.php, set the failed jobs database and table
# Your code here

Need a hint?

Open config/queue.php and find the failed section to set the database and table names.

3

Create a queue job class with retry limit

Create a job class named SendEmailJob using php artisan make:job SendEmailJob. In the job class, add a public property $tries and set it to 3 to limit retries.

Laravel

# Create SendEmailJob class and add retry limit
# Your code here

Need a hint?

Use the artisan command to create the job class, then add the $tries property inside the class.

4

Implement the failed() method to handle failed jobs

In the SendEmailJob class, add a public method failed() that accepts an \Exception $exception parameter. Inside, add code to log the failure or notify the admin.

Laravel

# Add the failed() method to SendEmailJob class
# Your code here

Need a hint?

Add the failed() method inside the job class to handle failure events.