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

Chapter 2: Debugging Apex

In this chapter, I want to discuss the process of debugging your Apex code and finding errors. In the previous chapter, we saw how we can prevent common Apex mistakes, but there will still be instances and examples where we have errors or issues that we will need to debug within our solution. The focus here is on the process of debugging and using the tools provided to their maximum, rather than debugging a particular problem itself. Code bugs come in all shapes and sizes, and if the Salesforce Developer Community forums and Salesforce StackExchange are any indication, a never-ending book of fixing particular errors could be written. By focusing on improving and streamlining your debugging process, you should be able to find and resolve any issues more rapidly in the future.

We will cover the following topics in this chapter:

  • An overview of debugging on Salesforce
  • Using log levels when generating debug logs
  • The use of Salesforce Developer...