404 Issue in Laravel API when required param value not passed - php

Question

Request class
class LoginRequest extends Request
{
public function authorize() {
return true;
}
public function rules() {
return [
'EmailAddress' => 'required',
'Password' => 'required',
];
}
public function messages() {
return [
"EmailAddress.required" => trans("login.RequiredEmailAddress"),
"Password.required" => trans("login.RequiredPassword")
];
}
}
Route
Route::post('/AuthenticateUser',
array(
'uses' => 'API\Login\apiLoginController#AuthenticateUser',
'as' => 'AuthenticateUser'
)
);
Controller Action Method
I have a controller, I did so far for request class only to validate the input parameters. below is the action method
public function AuthenticateUser(LoginRequest $request) {
dd("Hello");
}
Url
localhost:85/Laravel/public/api/v1/AuthenticateUser
I am using Postman Chrome extension to test the Url. So, as we can see that in the Request class both Email Address and the password are required parameters.
When I pass both parameters value. there is not issue and everything works. When I keep the Email Address value empty...I got 404 error and here is the screenshot.
Am I missing something to get rid of 404 error when Email address is not given? I am expecting an error message to enter Email Address
Below is the working state when I pass both email and password

Answer 1

Solution 1:
I managed to get rid of the 404 and return a 422 by adding the following header in the request:
accept:application/json
This is not really a bug in Laravel as Taylor pointed out but a way to differentiate if it is an AJAX/API request or not.
Solution 2:
Alternatively, if you don't want the client to specify that header, you can create a middleware that will add the header accept:application/json on every API requests. Here's how:
Create a new middleware: app/Http/Middleware/ForceJsonResponse.php
namespace App\Http\Middleware;
use Closure;
use Illuminate\Http\Request;
class ForceJsonResponse
{
/**
* Handle an incoming request.
*
* #param \Illuminate\Http\Request $request
* #param \Closure $next
* #return mixed
*/
public function handle(Request $request, Closure $next)
{
$request->headers->set('Accept', 'application/json');
return $next($request);
}
}
In /app/Http/Kernel.php, inside $middlewareGroups.api, specify the namespace to your newly created middleware:
protected $middlewareGroups = [
'web' => [...],
'api' => [
[...]
\App\Http\Middleware\ForceJsonResponse::class,
],
];

Answer 2

Finally got it working by changing the request class like below.
class LoginRequest extends Request
{
public function wantsJson() {
return true;
}
public function authorize() {
return true;
}
public function rules() {
return [
'EmailAddress' => 'required',
'Password' => 'required',
];
}
public function messages() {
return [
"EmailAddress.required" => trans("login.RequiredEmailAddress"),
"Password.required" => trans("login.RequiredPassword")
];
}
}
just added below code.
public function wantsJson() {
return true;
}

Answer 3

It is because you are validating directly on route handling and not matching throughs NotFoundException. You need to pass the Request to your Controller as is and do:
$this->validate($request, [
'EmailAddress' => 'required|email',
'Password' => 'required',
]);