How to create custom validation rule in Laravel 6 API - php

Question

I need to use my custom validation rule for validating API requests.
Request Class:
This is my request validation rule.
namespace App\Http\Requests;
use Illuminate\Foundation\Http\FormRequest;
class LoginRequest extends FormRequest
{
public function authorize()
{
return true;
}
public function rules()
{
return [
'username' => 'required',
'password' => 'required'
];
}
public function messages()
{
return [
'username.required' => 'The Username field is required',
'password.required' => 'The Password field is required'
];
}
}
API Controller:
This is my API controller and method.
use Illuminate\Http\Request;
use App\Http\Controllers\API\BaseController as BaseController;
use Illuminate\Support\Facades\Auth;
use App\Http\Requests\LoginRequest;
class LoginController extends BaseController
{
public function login(LoginRequest $request)
{
print_r($validatorMsg);
die();
}
}
Unable to get error message.

Answer 1

guys, I resolved the problem this is the solution:
public function login(Request $request)
{
$LoginRequest = New LoginRequest;
$validator = Validator::make($request->all(), $LoginRequest->rules(),$LoginRequest->messages());
if($validator->fails()){
return response()->json($validator->errors(), 422);
}
}

Answer 2

In order to display error messages in your API's, use response() method in your LoginRequest class, so you always return JSON. Something like this:
public function response(array $errors)
{
// Always return JSON.
return response()->json($errors, 422);
}
Now try to submit empty form, and you should be able to view the error message.