Book Image

Mastering Application Development with

By : Kevin J. Poorman
Book Image

Mastering Application Development with

By: Kevin J. Poorman

Overview of this book is an extremely powerful, scalable, and secure cloud platform, delivering a complete technology stack, ranging from databases and security to workflow and the user interface. With's cloud platform, you can build any business application and run it on your servers. The book will help you enhance your skillset and develop complex applications using It gets you started with a quick refresher of's development tools and methodologies, and moves to an in-depth discussion of triggers, bulkification, DML order of operations, and trigger frameworks. Next, you will learn to use batchable and schedulable interfaces to process massive amounts of information asynchronously. You will also be introduced to Salesforce Lightning and cover components—including backend (apex) controllers, frontend (JavaScript) controllers, events, and attributes—in detail. Moving on, the book will focus on testing various apex components: what to test, when to write the tests, and—most importantly—how to test. Next, you will develop a changeset and use it to migrate your code from one org to another, and learn what other tools are out there for deploying metadata. You will also use command-line tools to authenticate and access the Rest sObject API and the Bulk sObject API; additionally, you will write a custom Rest endpoint, and learn how to structure a project so that multiple developers can work independently of each other without causing metadata conflicts. Finally, you will take an in-depth look at the overarching best practices for architecture (structure) and engineering (code) applications on the platform.
Table of Contents (16 chapters)
Mastering Application Development with
About the Author
About the Reviewers

Developer console exercises

We'll be using the developer console throughout this book, so it is necessary that you become familiar with it. The following are some exercises to help you familiarize with the consoles development features:

  • Create a class: Using the developer console, create a new class and give it the name DevConsoleExample. Ensure that the class compiles without errors.

  • Run a SOQL query: Run a SOQL query from the query editor, that finds all the opportunities that are on the closed/won stage.

  • Execute anonymous: Run the following code block in execute anonymous window:

    System.assert(1, (1/0), 'should throw an assertion error');
  • Log viewing: Having run that snippet of Apex in the developer console, navigate to the Logs tab and open the raw log option of its execution. Does the code throw assertion exception or division by 0 exception?