How to get error validation data in Custom Form Request - laravel

Question

I have created a custom request form for login validation, It works fine if I put email and password field that's what I set for rules, email and password is required, but the problem is, I can't use the errors data,
/**
* Signin Controller
*
* #param \App\Http\Requests\Auth\Signin $request
*/
public function signin(Signin $request)
{
if ($request->validated()) {
return response()->json(['hello' => 'hi']);
} else {
return response()->json(['error' => $request->errors()]);
}
}
This is the Request form
<?php
namespace App\Http\Requests\Auth;
use Illuminate\Foundation\Http\FormRequest;
class Signin extends FormRequest
{
/**
* 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<string, mixed>
*/
public function messages()
{
return [
'email.required' => 'Email field is required.'
];
}
/**
* Get the validation rules that apply to the request.
*
* #return array<string, mixed>
*/
public function rules()
{
return [
'email' => 'required',
'password' => 'required'
];
}
}
Now when I try to make a post request to the signin controller, if email and password included then its return a json response, but if I only use email or password then it response a 405 method not allowed I'm expecting a json response with error data like errors()

Answer 1

As I understood, failedValidation would help you
use Illuminate\Http\JsonResponse;
class Signin extends FormRequest
{
public function failedValidation(Validator $validator)
{
throw new HttpResponseException(response()->json($validator->errors(), JsonResponse::HTTP_UNPROCESSABLE_ENTITY));
}
}
This return the JSON object with 422 error(default error code for validation)