一般来说，获得 API 针对任何特定请求返回的所有可能错误的某种描述会很棒。这将使实现更加可靠，并改善用户的应用程序反馈。
想象一下，我们需要向用户显示本地化的错误消息，而不仅仅是“Request failed with error code xxx”。
一个很好的例子就是这个错误{"error":"flattr_once","error_description":"You are not allowed to flattr this thing more than once this period","error_uri":"http:\/\/developers.flattr.net\/api"}。文档中没有提到它，但应用程序需要理解这一点，并且可能避免让用户在未来选择 flattr 这个项目。
这是我在奉承时发现的一些回应：
403{"error":"flattr_once","error_description":"You are not allowed to flattr this thing more than once this period","error_uri":"http:\/\/developers.flattr.net\/api"}
401{"error":"no_means","error_description":"You don't have any money to flattr with","error_uri":"http:\/\/developers.flattr.net\/api"}
{"error":"flattr_owner","error_description":"You are not allowed to flattr your own thing","error_uri":"http:\/\/developers.flattr.net\/api"}