Trait For API CRUD Resources

API.php

<?php

namespace App\Http\Traits;

use Illuminate\Http\Request;
use Validator;

trait API
{

    protected $errorMessage = '';
    protected $error = false;

    private function response($message,$data)
    {
        $respon = [
            'error' => false,
            'message' => $message,
            'data' => $data
        ];
        return response()->json($respon);
    }

    private function responseError($message,$code)
    {
        $respon = [
            'error' => true,
            'message' => $message,
            'data' => null
        ];
        return response()->json($respon,$code);
    }

    private function validation(Request $request,$type,$model = null)
    {
        $rules = ($type == 'store') ? $this->model::$rulesCreate : $this->model::rulesEdit($model);
        $validator = Validator::make($request->all(), $rules);
        if ($validator->fails()) {
            $this->error = true;
            foreach ($validator->errors()->all() as $error){
                $this->errorMessage .= $error."\n";
            }
        }
    }

    public function index()
    {
        $datas = $this->model::all();
        return $this->response("success",compact('datas'));
    }

    public function store(Request $request)
    {
        $this->validation($request,'store');
        if ($this->error){
            return $this->responseError($this->errorMessage,422);
        }
        $data = new $this->model;
        foreach ($request->all() as $key => $value) {
            $data->$key = $value;
        }
        if($data->isUser()){
            $data->user_id = auth()->user()->id;
        }
        $data->save();
        return $this->response("stored",compact('data'));
    }

    public function show($id)
    {
        $data = $this->model::find($id);
        return $this->response("success",compact('data'));
    }

    public function update(Request $request, $id)
    {
        $data = $this->model::find($id);
        $this->validation($request,'update',$data);
        if ($this->error){
            return $this->responseError($this->errorMessage,422);
        }
        $data->update($request->all());
        return $this->response("updated",compact('data'));
    }

    public function destroy($id)
    {
        $this->model::destroy($id);
        return $this->response("deleted",null);
    }

}