Looking at an improved way of throttling API requests with the package. This will allow you to register custom throttles when you want to grant more requests for different types of authentication or user levels.

config.php

<?php

return [
    'throttling' => [

        new Dingo\Api\Http\RateLimit\AuthenticatedThrottle(['limit' => 0, 'expires' => 60]),
        new Dingo\Api\Http\RateLimit\UnauthenticatedThrottle(['limit' => 0, 'expires' => 60]),

        // Register a custom throttle.
        new OAuth2Throttle(['limit' => 2000, 'expires' => 20])

    ]
];

OAuth2Throttle.php

<?php

class OAuth2Throttle extends Dingo\Api\Http\RateLimit\Throttle
{
    public function condition($app)
    {
        return $app['api.auth']->via('oauth2');
    }
}

Instead of instantiating the classes directly it might be better to instead use a multi-dimensional array?

<?php 

return [
    'throttling' => [
        [
            'class' => 'OAuth2Throttle',
            'limit' => 2000,
            'expires' => 20
        ],
        [
            'class' => 'Dingo\Api\Http\RateLimit\AuthenticatedThrottle',
            'limit' => 0,
            'expires' => 60
        ]
    ]
];

I kind of like the cleanliness of instantiating the classes though.

I'd rather instantiate classes than use more multidimensional arrays

Yeah I'm much the same.