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Overview

Unleash Commerce Core is built with extensibility in mind. You can customize nearly every aspect of the core functionality without modifying the package itself.

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Extension Points

The core package provides several ways to extend functionality:

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1. Contract Binding

Contracts define interfaces for key functionality. You can implement your own versions and bind them in the service container: 
// In your service provider
$this->app->bind(
    ProductContract::class,
    CustomProductImplementation::class
);

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2. Action Contracts

Actions are the primary way business logic is organized. Each action has a corresponding contract that you can create a custom implementation for.

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3. Model Extensions

Extend existing models by creating your own subclasses or using observers for additional behavior.

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4. Manifest System

The core uses manifests to manage mappings between contracts and implementations. This allows swapping implementations without changing code.

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Best Practices

  • Always implement the contract interface when creating custom implementations
  • Use dependency injection to keep your code loosely coupled
  • Test your extensions thoroughly
  • Use observers for non-intrusive model behavior
Explore the sections below to learn how to create custom actions and models.