HTTP/1.1 401 Unauthorized
Date: Thu, 08 Dec 2016 05:59:56 GMT
Content-Type: application/json; charset=UTF-8
Content-Length: 203
Connection: keep-alive

{
  "error": {
    "type": "invalid_request_error",
    "message": "提供了无效的 API KEY: sk_test_*************************。"
  }
}