从lambda函数访问意向槽

Question

我用简单的lex意图创建了一个简单的bot。这个lex意图有一个单一的插槽slotTwo。

然后我将它与python lambda函数链接。我想从lambda函数内部访问该槽的值。

python lambda函数接收参数context和event。下面的链接显示了参数event的结构。 https://docs.aws.amazon.com/lex/latest/dg/lambda-input-response-format.html

I copy it here too:


{
  "currentIntent": {
    "name": "intent-name",
    "slots": {
      "slot name": "value",
      "slot name": "value"
    },
    "slotDetails": {
      "slot name": {
        "resolutions" : [
          { "value": "resolved value" },
          { "value": "resolved value" }
        ],
        "originalValue": "original text"
      },
      "slot name": {
        "resolutions" : [
          { "value": "resolved value" },
          { "value": "resolved value" }
        ],
        "originalValue": "original text"
      }
    },
    "confirmationStatus": "None, Confirmed, or Denied (intent confirmation, if configured)"
  },
  "bot": {
    "name": "bot name",
    "alias": "bot alias",
    "version": "bot version"
  },
  "userId": "User ID specified in the POST request to Amazon Lex.",
  "inputTranscript": "Text used to process the request",
  "invocationSource": "FulfillmentCodeHook or DialogCodeHook",
  "outputDialogMode": "Text or Voice, based on ContentType request header in runtime API request",
  "messageVersion": "1.0",
  "sessionAttributes": { 
     "key": "value",
     "key": "value"
  },
  "requestAttributes": { 
     "key": "value",
     "key": "value"
  }
}

但是，当我打印出这个参数的内容时，我只看到了插槽，我可以直接访问它的值，第一级。

START RequestId: 60a541d8-b3c8-48b0-a7a3-6b3f65d96482 Version: $LATEST
{
"slotTwo": "some text here"
}

lambda控制台的测试工作正常。它能够检索值并继续逻辑。但是，当我从Lex测试机器人时，它不起作用。知道为什么吗？非常感谢Ester

Answer 1

我的错。我错过了lamdda测试中指示的值必须对应于整个JSON结构。所以现在我把它添加为事件测试：

{
  "currentIntent": {
    "name": "intent-name",
    "slots": {
      "slotTwo": "Hi from the sendmessagetest"
    }
  }
}

我以这种方式访问​​lambda中的插槽：

 messagetext = event['currentIntent'] ['slots'] ['slotTwo']

如果您发现它令人困惑，请随意删除我的帖子。感谢大家