kesmenenver/servicelayer

The Service Layer is a design pattern that will help you to abstract your logic when you need to use different front-end on your application, for your domain logic

Laravel Service Layer

Laravel Service Layer is a package for Laravel 5 which is used to abstract the bussiness logic in service layer. This makes applications much easier to maintain., _(*1)

Installation

Run the following command from you terminal:, _(*2)

bash composer require kesmenenver/servicelayer, _(*3)

or add this to require section in your composer.json file:, _(*4)

"kesmenenver/servicelayer": "dev-master", _(*5)

then run composer update, _(*6)

Usage

Imagine an application where users create products. You can't do this process in contoller because controllers have to be glue code for all layers so you need a service layer for that. It's easy with this package., _(*7)

First, _(*8)

php artisan make:service CreateProduct
 ```

 This command will created one interface and one class in app/Services folder. You have to implement make() method in ```app/services/CreateProduct```. We will use Interface for DI in controller later.

 ```app/services/CreateProduct``` looks like this.
 ```php
<?php

namespace App\Services;
use App\Services\Contracts\CreateProductServiceInterface;

class CreateProductService implements CreateProductServiceInterface
{
    public function make(array $request)
        {
             // TODO: Implement make() method.
            // put all the logic in this class
        }
}

Wee need to implement make() method. All your logic must be in your make() methods. By implementing make() method you telling what does this service do., _(*9)

Now, implement make() method: ```php <?php, _(*10)

namespace App\Services; use App\Services\Contracts\CreateProductServiceInterface;, _(*11)

class CreateProductService implements CreateProductServiceInterface { public function make(array $request) { $product = \App\Product::create([ 'name' => $request['name'], 'amount' => $request['amount'], 'quantity' => $request['quantity'] ]); return $product; } }, _(*12)

And finally, use the service in the controller:

```php
public function store(CreateProductRequest $request, CreateProductServiceInterface $createProductService)
{
    $product = $createProductService->make($request->toArray());
    return response()->json($product);
}

We use Interface in controller for DI. Laravel needs to know where this interface is implemented. Just add this code snippet to the register() method in the /app/Providers/AppServiceProvider.php class., _(*13)

 $this->app->bind(
            'App\Services\Contracts\CreateProductServiceInterface',
            'App\Services\CreateProductService'
        );

Consider creating products in different locations. The only thing you need to do is maintain your services., _(*14)