chengluApp/app/Http/Requests/BaseRequest.php

<?php

namespace App\Http\Requests;

use Illuminate\Foundation\Http\FormRequest;
use Symfony\Component\HttpKernel\Exception\HttpException;
use Illuminate\Contracts\Validation;

class BaseRequest extends FormRequest
{
    public function authorize()
    {
        return true;
    }

    /**
     * Get the validation rules that apply to the request.
     * @param Validation\Validator $validator
     */
    protected function failedValidation(Validation\Validator $validator)
    {
        throw new HttpException(403, $validator->errors()->first());
    }
}