Book Image

Mastering Apex Programming

By : Paul Battisson
5 (1)
Book Image

Mastering Apex Programming

5 (1)
By: Paul Battisson

Overview of this book

As applications built on the Salesforce platform are now a key part of many organizations, developers are shifting focus to Apex, Salesforce’s proprietary programming language. As a Salesforce developer, it is important to understand the range of tools at your disposal, how and when to use them, and best practices for working with Apex. Mastering Apex Programming will help you explore the advanced features of Apex programming and guide you in delivering robust solutions that scale. This book starts by taking you through common Apex mistakes, debugging, exception handling, and testing. You'll then discover different asynchronous Apex programming options and develop custom Apex REST web services. The book shows you how to define and utilize Batch Apex, Queueable Apex, and Scheduled Apex using common scenarios before teaching you how to define, publish, and consume platform events and RESTful endpoints with Apex. Finally, you'll learn how to profile and improve the performance of your Apex application, including architecture trade-offs. With code examples used to facilitate discussion throughout, by the end of the book, you'll have developed the skills needed to build robust and scalable applications in Apex.
Table of Contents (21 chapters)
1
Section 1 – Triggers, Testing, and Security
8
Section 2 – Asynchronous Apex and Apex REST
15
Section 3 – Apex Performance

Profiling Lightning Web Components performance

Lightning Web Components is the newest frontend development framework for the Salesforce platform and is built using modern HTML and JavaScript to provide the best possible performance and web standards compliance. The fact that the framework is built using these standard technologies allows Lightning Web Components to be analyzed in a way that is much closer to an analysis of regular web pages and other JavaScript frameworks.

The main way therefore of profiling Lightning Web Components is through the use of standard web tools such as the Chrome Developer tools. The full use of these tools is outside the scope of this book, but Google provides a large amount of training free of charge for these tools. Salesforce has also released an extension for Google Chrome to enhance the developer tools with the Salesforce Lightning Inspector Chrome extension, which can be obtained from the Chrome extensions library.

After installing this tool...