Laravel 5.4 Auth API route

I' trying to build an API authentication, I defined a controller for it and there's another one for the web login. I configured 2 different auth in config/api, because there are 2 types of users, the ones that are going to be using the API and the other are the web users. This is the guards config:

'guards' => [
    'web' => [
        'driver' => 'session',
        'provider' => 'users',
    ],

    'api' => [
        'driver' => 'token',
        'provider' => 'users',
    ],
    'users-api' => [
        'driver' => 'token',
        'provider' => 'users-api',
    ],
    'users' => [
        'driver' => 'session',
        'provider' => 'usuarios',
    ],
],

Thing is that whenever I try to access /api/login I get redirected to /login (which is the web view, this is how I defined the Route in the api.php routes file:

Route::group(['middleware' => ['auth:users-api']], function () {
     Route::get('login','api\AuthenticationController@authenticate');
     Route::get('register','api\AuthenticationController@register');
});

It happens when I use the middleware, I have tried calling it from the Controller construct like this:$this->middleware('auth:users-api');

But I still get redirected, if I comment that line or if I don't use the middleware in the routes file, I don't get redirected but I need it to specify which table the auth will use. If you need anything else to help me solve it, I'll gladly provide it. Thanks in advance.

via Chebli Mohamed