When we start working with Salesforce Apex triggers, most beginners write all the logic directly inside the trigger. This approach may work for small use cases, but as your project grows, your code becomes difficult to manage, debug, and scale.
In real-world Salesforce projects, multiple automations run on the same object. If everything is written into a single trigger, it becomes messy and hard to understand. This is where the Trigger Handler Pattern comes into the picture.
The Trigger Handler Pattern is a best practice used by Salesforce developers to write clean, organized, and reusable code.
Usually, when we write Apex Triggers, we define the trigger class and implement the logic in the same class. Let’s say you created a trigger to automatically update fields on the Account object when a specific condition is met.
Now, again, you need to automate any other processes on the same object, and if you keep adding more things, it will become difficult for you and other developers to understand the code.
To keep the code cleaner, more organized, and reusable, we have a trigger handler and a helper class in Salesforce Apex.
In this tutorial, we will learn about the trigger handler pattern in Salesforce Apex, its purpose, and how to create an Apex trigger handler and helper class using examples and step-by-step explanations.