Exploring Observer Pattern in Laravel: Efficient Event Tracking

The Observer Pattern is a significant software design pattern that allows an object to track and respond to changes in other objects. Within the Laravel framework, the Observer Pattern is extensively used to implement event tracking and perform actions based on those events.

Concept of the Observer Pattern

The Observer Pattern establishes a one-to-many relationship between objects. One object, known as the Subject, maintains a list of Observers and notifies them about any events that occur.

Observer Pattern in Laravel

In Laravel, the Observer Pattern is primarily utilized to manage events related to data in the database. When events such as creating, updating, or deleting data occur, you can use the Observer Pattern to automatically execute specific actions.

Using Observer Pattern in Laravel

Create Model and Migration: Firstly, create a model and migration for the object you want to observe.

Create Observer: Generate an Observer using the artisan command:

php artisan make:observer UserObserver --model=User

Register Observer: In the model, register the Observer by adding the Observers to the $observers attribute:

protected $observers = [

Implement Actions: In the Observer, you can implement actions based on events like created, updated, deleted:

public function created(User $user)
    // Handle when a user is created

public function updated(User $user)
    // Handle when a user is updated

Benefits of Observer Pattern in Laravel

Separation of Logic: The Observer Pattern helps separate event-handling logic from the model, keeping the source code clean and maintainable.

Easy Extension: You can easily extend the functionality of your application by adding new Observers without affecting other components.

Ease of Testing: By using Observers, you can easily test event-handling and ensure the stability of your application.


The Observer Pattern in Laravel enables you to effectively track and respond to events in your application. This enhances maintainability, scalability, and testability of the code.