Salesforce Lightning Web Component Cookbook

Explore real-world solutions for Salesforce Lightning Web Components with hands-on recipes covering Apex integration, security, performance optimization, testing, debugging, and migrating legacy components.

Key Features

• Go beyond the basics to build high-performance Salesforce apps in just hours.
• Access solutions and strategic optimizations developed through extensive Salesforce expertise.
• Solve complex challenges and position yourself as a top-tier Salesforce developer.
• Free with your book: DRM-free PDF version + access to Packt's next-gen Reader*

Book Description

Salesforce developers strive to build fast, scalable, and efficient apps—whether to streamline business processes, enhance user experience, or modernize legacy systems. But mastering Lightning Web Components (LWCs) can be complex. Salesforce Lightning Web Development Cookbook simplifies this journey with 70-plus recipes that guide you through every stage of LWC development with step-by-step solutions to real-world challenges faced by Salesforce developers.

Written by Evelyn Maguire, a 10x-Salesforce certified developer, this book covers key concepts such as component composition, data retrieval, event handling, and performance optimization. You’ll explore advanced topics such as writing accessible components, migrating from Visualforce and Aura, and testing LWCs using Jest and Apex.

By the end of the book, you’ll understand the necessary concepts to successfully build and scale LWCs for enterprise-grade applications. Whether you’re developing new features, troubleshooting performance issues, or transitioning legacy code, this book will equip you with the expertise needed to streamline development and create high-performance applications.

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What you will learn

• Set up your development environment for Salesforce LWCs.
• Build dynamic and reusable LWC components with best practices.
• Integrate Apex methods and handle asynchronous data.
• Secure components using Lightning Web Security and Locker Service.
• Optimize performance with caching and lazy loading.
• Test and debug LWCs using Jest and Apex test classes.
• Migrate legacy Visualforce and Aura components to LWC.
• Work with external APIs and third-party integrations

Who this book is for

This cookbook is for intermediate to experienced Salesforce developers looking to master advanced Lightning Web Components (LWC) techniques. It provides practical solutions for optimizing performance, implementing complex UI patterns, and integrating LWC within the Salesforce ecosystem. Prior knowledge of Apex and JavaScript will be beneficial, but the step-by-step recipes ensure that even those new to LWC development can follow along and apply their learnings effectively.

Table of Contents

1. Getting Ready for Lightning Web Component Development
2. Writing Apex for Lightning Web Components
3. Working with a Selector Class
4. Synchronous and Asynchronous Processing in Components
5. Accessing External Data Sources via Lightning Web Components
6. Composing Lightning Web Components
7. Building Secure Components with Lightning Locker and Lightning Web Security
8. Implementing Reactivity in Lightning Web Components
9. Creating Custom Lightning Web Components
10. Designing Polymorphic Lightning Web Components
11. Writing Accessible Lightning Web Components
12. Migrating Aura to Lightning Web Components
13. Testing Apex with Mocking and Stubbing
14. Testing Lightning Web Components with Jest
15. Debugging Lightning Web Components

Evelyn Maguire is a 10x Salesforce certified developer and architect. They started working as a software developer in 2019 after a decade in various service industries, including hospitality and telecommunications. While attending school for network engineering, Evelyn pivoted into a career in Salesforce development and never looked back. In 2024, Evelyn attended Dreamforce to accept the inaugural Own Company Innovator of the Year award for their work on a data recovery simulator. In their free time, Evelyn coaches for RADWomen, an organization that upskills women from Salesforce administrators to developers. Their favorite subjects to teach are asynchronous Apex and the principles of object-oriented programming as pertaining to Apex.