$table->string('api_token', 60)->unique();

<?php

namespace AppHttpMiddleware;

use Closure;
use IlluminateSupportFacadesAuth;
class Authenticate
{
    /**
     * Handle an incoming request.
     *
     * @param  IlluminateHttpRequest  $request
     * @param  Closure  $next
     * @param  string|null  $guard
     * @return mixed
     */
    public function handle($request, Closure $next, $guard = null)
    {
        if (Auth::guard($guard)->guest()) {

            if ($request->ajax() || $request->wantsJson()) {
                return response('Unauthorized.', 401);
            } else {
                return redirect()->guest('auth/login');
            }
        }

        return $next($request);
    }
}

Route::group(['middleware' => 'auth:api'], function () {

    Route::resource('api/v1/foo/bar', 'APIFooBarController');

}