Backend Architecture Repository Pattern

When to use this skill

• Abstracting data access
• Multiple data sources
• Testability
• Complex queries

Workflow

• Create repository interface
• Implement repository
• Inject into services
• Abstract query logic
• Keep repositories focused

Instructions

Interface

<?php

namespace App\Repositories;

interface UserRepositoryInterface
{
    public function find(int $id): ?User;
    public function findByEmail(string $email): ?User;
    public function save(User $user): User;
}

Implementation

<?php

namespace App\Repositories;

class UserRepository implements UserRepositoryInterface
{
    public function __construct(
        private UserModel $model
    ) {}

    public function find(int $id): ?User
    {
        return $this->model->find($id);
    }

    public function findByEmail(string $email): ?User
    {
        return $this->model->where('email', $email)->first();
    }
}

Resources

• Abstract data access
• Easy to mock for testing
• Switch data sources easily