Laravel Queues in Action

“Learn how to utilize their power to make your applications faster and more reliable while reducing running costs.

This eBook is a collection of real-world challenges with solutions that actually run in production. These are challenges I met while building products at Laravel and others collected while supporting the framework users for the past four years.

But before the challenges—and because every good technical book includes a crash course—we will explore the key components of a queue system, see how queues are used in Laravel, and understand why we need to use them.”

 Table of Contents

Introduction to Queues

The Queue System

Queues in Laravel

The Advantages of Using Queues

Cookbook

Sending Email Verification Messages

High Priority Jobs

Retrying Failed Jobs

Configuring Automatic Retries

Canceling Abandoned Orders

Sending Webhooks

Provisioning a Forge Server

Canceling a Conference

Preventing a Double Refund

Preventing a Double Refund With Unique Jobs

Bulk Refunding Invoices

Selling Conference Tickets

Spike Detection

Processing Uploaded Videos

Sending Monthly Invoices

Controlling The Rate of Job Execution

Dealing With API Rate Limits

Dealing With an Unstable Service

Provisioning a Serverless Database

Generating Complex Reports

FIFO Queues

Dispatching Event Listeners to Queue

Sending Notifications in the Queue

Dynamic Queue Consumption

Customizing The Job Payload

A Guide to Running and Managing Queues

How Laravel Dispatches Jobs

Creation of The Job Payload

How Workers Work

Choosing the Right Machine Configuration

Keeping the Workers Running

Scalability of The Queue System

Scaling With Laravel Horizon

Choosing The Right Queue Driver

Handling Queues on Deployments

Designing Reliable Queued Jobs

Managing The State

Dealing With Failure

Dispatching Large Batches

Reference

Worker Configurations

Job Configurations

Connection Configurations

Horizon Configurations

Built-in Middleware

Job Interfaces