oauth2Route.php

<?php
Route::post(‘oauth/access_token’, function() {
 return Response::json(Authorizer::issueAccessToken());
});

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

    Route::get('api', function () {
        $user_id = Authorizer::getResourceOwnerId(); // the token user_id
        $user = \App\User::find($user_id);// get the user data from database
        return Response::json($user);
    });
});