如何将验证错误作为JSON发送到视图

i'm building an API, i'm validating the input fields in my StoreLesson.php

    public function rules()
{
    return [
        'title' => 'required',
        'body' => 'required',
    ];
}

i'm using postman to test the API, things are working fine but when i send POST request with empty fields, in postman console in webview i'm getting redirected to welcom.blade.php

//LessonController.php
public function store(StoreLessons $request) 
{
    Lesson::create($request->all());

    return response()->json($validator->errors(), 422);  //i'm not getting any json with errors

    //Lesson::create(input::all());

    return $this->respondCreated('Lesson created successfully');
}

i want to display (return) the validator error as json

thank You

use the validator like this:

$validator = Validator::make($data, $rules);
if ($validator->fails())
    return response()->json($validator);

Create StoreLessons Request inside app/Http/Requests.And call this request in LessonController.php you did.

----------
     class StoreLessons extends Request
            {
                /**
                 * Determine if the user is authorized to make this request.
                 *
                 * @return bool
                 */
                public function authorize()
                {
                    return true;
                }

                /**
                 * Get the validation rules that apply to the request.
                 *
                 * @return array
                 */
                public function rules()
                {
                     return [
                'title' => 'required',
                'body' => 'required',
            ];
                }


                /**
                 * @param array $errors
                 *
                 * @return JsonResponse
                 */
                public function response(array $errors)
                {
                    return response($errors);
                }

                /**
                 * @param Validator $validator
                 *
                 * @return mixed
                 */
                protected function formatErrors(Validator $validator)
                {
                    return $validator->errors()->all();
                }