POST请求在Laravel 5.4的REST API中不起作用

I have tried to send some values using post method in REST API Tool. I have used Laravel version 5.4. I have tried the following code

Route File:

Route::post('ws-register',array('uses' => 'AppController@doRegister'));

Controller File

public function doRegister() {
    $rules = array(
        'email' => 'required|email|unique:users', 
        'password' => 'required|alpha_num|min:6|max:15'
    );
    $messages = array('alpha_spaces' => 'Name must be alphanumeric');
    $validator = Validator::make(Input::all(), $rules, $messages);

    if ($validator->fails()) {
        $error = $validator->errors()->all(':message');

        $response['message'] = $error[0];
        $response['code'] = false;
    } else {
            $user = new Users;

            $user->email = Input::get('email');
            $user->password = Hash::make(Input::get('password'));
            $user->save();

            $response['user_id'] = $user->id;
            $response['message'] = "Success";
            $response['code'] = true;
        }
    }
    return Response::json($response);
}

While calling through REST API POST Method, I am getting "500: Internal Server Error" as response. Can anyone help me out to find what I have done wrong?

Assuming you are having TokenMismatchException in VerifyCsrfToken.php error, as was written in question comments.

As stated in app/Http/Kernel.php, VerifyCsrfToken middleware is applied to all routes in routes/web.php. But it is not applied to routes/api.php

If you are making API request, may be it is better to place your route in routes/api.php file. Then, when making API call, make sure to add /api prefix to your request, like this:

POST http://example.app/api/ws-register

But if you still want to to keep your route in routes/web.php, think of adding CSRF-protection. More info at https://laravel.com/docs/5.4/csrf