allo/app/Http/Controllers/Controller.php

<?php

namespace App\Http\Controllers;

use App\Model\Form;
use App\Model\WorkOrder;
use Illuminate\Foundation\Bus\DispatchesJobs;
use Illuminate\Routing\Controller as BaseController;
use Illuminate\Foundation\Validation\ValidatesRequests;
use Illuminate\Foundation\Auth\Access\AuthorizesRequests;

class Controller extends BaseController
{
    use AuthorizesRequests, DispatchesJobs, ValidatesRequests;

    public function taggingCategory()
    {
        $response = json_decode(file_get_contents(public_path() . '/test.json'));

        if ($response->success == true) {

            foreach ($response->data as $key => $r) {
                $work_order = WorkOrder::where('wo', $r->wo)->first();
                $form_submitted = Form::where('_id', $work_order->_id)->first();

                $form_submitted->customer_category = $r->category;
                $form_submitted->save();
            }

            return 'data inserted ';
        }
    }
}