Service Class in Laravel and usages.

Service classes are written to encapsulate codes and business logic separately from controllers. These classes should work for a service or operation. Unlike other classes, service classes do not inherit from other classes or controllers. Instead, the functions get called by object.

1. Should be stored under App\Services namespace.
2. Should have “Service” as a name suffix. Example: PostService, CommentService etc.

<?php

namespace App\Services;

class PostService
{
    public function store($data)
    {
        // Any logical block
        $post = Post::create($data);
        
        if ($post) {
            return $post;
        } else {
            throw new \Exception('Not stored. Something is wrong!');
        }
    }
}

Now from any controller, you can call the function store by an instance of PostService.

public function storePost(Request $request, PostService $service)
{
    // Some validation
    // Some data formatting and making an associative array.
    try {
        $service->store($insertionArray);
    } catch (\Exception $exception) {
        return response()->json(['error' => $exception->getMessage()], 422);
    }
    return response()->json([....], 200);
}

As you can see, in my service function I received data and stored it in the DB table, and if any issue happens I return an exception. The service should return the result to the controller, not to the view.

This is just a simple use case, you can go deeper with service classes. Definitely follow the More Documentation on Medium for details.