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.

Installation

Run the following command from you terminal:

composer require kesmenenver/servicelayer

or add this to require section in your composer.json file:

 "kesmenenver/servicelayer": "dev-master"

then run composer update

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.

First

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

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.

Now, implement make() method:

<?php

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

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

And finally, use the service in the controller:

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.

 $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.