BlueMix上的Watson Dialog服务：转发错误

Question

我在Bluemix上为Watson Dialog服务创建了一个实例。 我正在使用IBM Watson Dialog API参考中指定的基本身份验证通过Mobilefirst Adapter对Dialog API进行身份验证。 我在Bluemix中提供服务实例的服务凭据中提供的用户名和密码。

当我调用适配器时，我得到了这个响应：

{
   "code": 500,
   "isSuccessful": true,
   "message": "Forwarding error",
   "responseHeaders": {
      "Connection": "Keep-Alive",
      "Content-Type": "application\/json",
      "Date": "Tue, 12 Jul 2016 13:41:04 GMT",
      "Server": "-",
      "Set-Cookie": "Watson-DPAT=ZRbNg044CHnee09Pm0UOAKxqVbY4fZHXWj6%2Bb4mWeYkG56h873G%2F0A1jKTBH8zWK7NJjgYtkx1SaekClhk4CoZhad0PwuORRRdwkiXhAUh03uEnEqyDWh6n0WBIVxNWOoAAoxUMAqTDxfw%2BMHtwngXyZe47TZYk7IdsvsV%2F0bhLoAF6GS8YEwaamX7b7tfqchTfoQ3%2FIF7TbktyfJ9L8tUiQrwZyLlJcWv5Typn93J1km5Jl%2Fvc4K3W7zvtVygYeurP9Bb1slAp1PRGIppn97W%2F%2F3I%2FkKq3VS0VVo5BZXhvBf7SS%2FJg5mwQ8wbTyMqjIZXqF1zKuZ5FvlLJcYX%2BvFeJG28j429rDOvpIihOn%2FmMNV9eYeAubZQ929beB32dX90B1ChNwiYMFWe9cV7ONbaUCOLpzrO6rLKFtfeonRgsp0a6wdN3KLaBWJ9A4eB%2Fjffhfgro7N3iskxjCi5jkhgY0WOGdpg4kQmbq%2F%2F3b2a0GCP6hrYn%2BJL%2BfGNYg8wcb7xLmCRN77XwP8HqCeJ6TChi8YRpheO5CVjOlP0E5QOHAYWMTxDsLe4tV34FnPYSSvxVNY9f9sALsf627ymoOcG2r03tetgsR44f9MlkFGeydbfPtAVBZidVDLzajMqcigMf9J%2B92NXGXBVypFnu4gIkb5Uee0Duf8gRcMQSJ3M%2BhbFN4UzePYh4FLXfJv5EvQOm5AJewTtJcnrsxZfiXVDdVqNDpv3c3XWN%2F5Cenc7uKtlkFuwsnusJoBOvYQXLuMuJiDT9ODHwMn8vaM9qIZy9Mo4zReKDBnZXrlwTCphLEzhTCng6X24e46C29W8SgK97AhK4H3hY%3D; path=\/dialog\/api; secure; HttpOnly",
      "Transfer-Encoding": "chunked",
      "X-Backside-Transport": "FAIL FAIL",
      "X-Client-IP": "195.212.29.160",
      "X-DP-Watson-Tran-ID": "gateway-dp02-2901289c-0679-40df-bdc0-db2d7ccd8847",
      "X-Error-Cause": "Zuul Error: COMMAND_EXCEPTION",
      "X-Global-Transaction-ID": "10770268"
   },
   "responseTime": 1210,
   "statusCode": 500,
   "statusReason": "Internal Server Error",
   "totalTime": 1372

}

此外，尝试通过命令行使用以下命令对服务进行身份验证时：

curl -u "username":"password" "https://gateway.watsonplatform.net/dialog/api/v1"

我收到了回复：

{"code": 500, "message": "Forwarding error"}

这项服务发生了什么？

其他Watson服务也在发生在我身上：Languaje Translator。 （我还没有与其他人核实过）

Answer 1

问题是https://gateway.watsonplatform.net/dialog/api/v1不是有效的端点。 在这种情况下， Forwarding error有点像404。

您可以使用Watson Dialog API规范来查看哪些是有效的端点。

例如，要获取对话框列表，请对/v1/dialogs执行GET请求：

curl -u "username":"password" \
"https://gateway.watsonplatform.net/dialog/api/v1/dialogs"

输出类似于：

{
  "dialogs": [
    {
      "name": "pizza_test_9",
      "dialog_id": "94ce77db-1d15-4438-be6f-c96be8d883a6"
    }
  ],
  "language_packs": [
    {
      "name": "en-us-legacy",
      "dialog_id": "en-us-legacy"
    },
    {
      "name": "en-us",
      "dialog_id": "en-us"
    }
  ]
}

确保使用服务凭据替换username和password 。