postman 调试话题列表报错

按照教程修改app/Http/Controllers/Api/TopicsController.php，增加index()后，用postman调试报错：

Symfony\Component\HttpKernel\Exception\MethodNotAllowedHttpException: The GET method is not supported for this route. Supported methods: POST. in file /home/vagrant/Code/larabbs/vendor/laravel/framework/src/Illuminate/Routing/RouteCollection.php on line 256

更正：在routes\api.php中增加index路径

// 发布话题
Route::resource(‘topics’, ‘TopicsController’)->only([
‘store’, ‘update’, ‘destroy’,’index’]);

再用postman测试话题列表，出现教程结果：