How to show custom messages in laravel 5.8? - laravel

Question

I am using laravel 5.8 version, i have one api which is responsible for registering ,i create one Request file which contains rules() and messages() function to display error messages but it's not throwing any error messages if any validation fails ,why this is happening can somebody explain ?
UserController.php
<?php
namespace App\Http\Controllers;
use App\Http\Requests\userRequest;
use App\UserSection;
class UserController extends Controller
{
public function userRegister(userRequest $request){
//logic of my code
return response()->json($success);
}
}
userRequest.php
<?php
namespace App\Http\Requests;
use App\Rules\CustomRule;
use Illuminate\Foundation\Http\FormRequest;
class userRequest extends FormRequest
{
public function messages()
{
return [
'first_name.required' => 'A title is required',
];
}
/**
* 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 [
'first_name' => 'string|required|max:25',
'phone_number' => 'required|integer'
];
}
}
The error i am facing when i hit the route without first_name key it's showing 404 not found error

Answer 1

you might have missed headers part for taking the form-data
Accept = application/json

Answer 2

As laravel docs
If validation fails, a redirect response will be generated to send the
user back to their previous location. The errors will also be flashed
to the session so they are available for display. If the request was
an AJAX request, a HTTP response with a 422 status code will be
returned to the user including a JSON representation of the validation
errors.
So you need to specify the response type you expect, if you use postman for testing your api end point you have to add in request header Accept:application/json
<?php
namespace App\Http\Controllers;
use App\Http\Requests\userRequest;
use App\UserSection;
class UserController extends Controller
{
public function userRegister(userRequest $request){
//logic of my code
return response()->json($success);
}
}