Controller and service

CustomerController.php

<?php

namespace App\Http\Controllers;

use App\Http\Controllers\Controller;
use App\Services\CustomerService;
use Illuminate\Http\Request;

class CustomerController extends Controller
{
    public function __construct(CustomerService $customerService)
    {
        $this->customerService = $customerService;
    }

    public function store(Request $request)
    {
        $data = $request->validate([
            'name'  => 'required',
            'email' => 'required',
        ]);

        $data = $this->customerService->storeCustomer($data);

        return [
            "saved" => true,
        ];
    }

}

CustomerService.php

<?php

namespace App\Services;

use App\Mail\WelcomeNewCustomer;
use DB;
use Mail;

/**
 * Class CustomerService
 *
 */
class CustomerService
{

    /**
     * CustomerService constructor.
     *
     */
    public function __construct()
    {

    }

    public function storeCustomer($inputs)
    {
        DB::table('customers')->insert($inputs);

        Mail::to($inputs['email'])->send(new WelcomeNewCustomer($inputs));
    }

}