来自 webhook 的无效响应：无法将 JSON 转换为 ExecuteHttpResponse

问题描述

我有一个来自我的谷歌助手新动作构建器平台的网络钩子。 Webhook 代码是在 dotnet vs2019 中编写的。我遵循了以下链接中提供的 webhook 请求和响应格式以及示例 json。

https://developers.google.com/assistant/conversational/reference/rest/v1/TopLevel/fulfill#User

https://developers.google.com/assistant/conversational/webhooks#request-json_1

但是当我测试助手动作时，它失败了。以下是来自谷歌助手测试模拟器日志的请求和响应 json。错误消息只是说“来自 webhook 的响应无效：无法将 JSON 转换为 ExecuteHttpResponse。”我不知道为什么它无效。有人能帮我解决这个问题吗。

{
  "requestJson": {
    "handler": {
      "name": "agentcube"
    },"intent": {
      "name": "","params": {
        "phone": {
          "original": "1234562869","resolved": 1234562869
        }
      },"query": "1234562869"
    },"scene": {
      "name": "Start","slotFillingStatus": "FINAL","slots": {
        "Zip": {
          "mode": "required","status": "SLOT_UNSPECIFIED","updated": false,"value": 37122
        },"Phone": {
          "mode": "required","updated": true,"value": 1234562869
        },"FName": {
          "mode": "required","value": "john doe"
        }
      },"next": {
        "name": "actions.scene.END_CONVERSATION"
      }
    },"session": {
      "id": "ABwppHFkFuGBF-UawPmIkxWpkfM1Hb5An7h8KnjR302zukmBoKA1NqDp7DfePGzYsyxT5oy--wg5Jkjj","params": {
        "Phone": 1234562869,"FName": "john doe","Zip": 37122
      },"typeOverrides": [],"languageCode": ""
    },"user": {
      "locale": "en-US","params": {},"accountLinkingStatus": "NOT_LINKED","verificationStatus": "VERIFIED","packageEntitlements": [],"gaiamint": "","permissions": [],"lastSeenTime": "2021-01-28T19:21:28Z"
    },"home": {
      "params": {}
    },"device": {
      "capabilities": [
        "SPEECH","RICH_RESPONSE","LONG_FORM_AUdio"
      ]
    }
  }
}

  

来自 webhook 的无效响应：无法将 JSON 转换为 ExecuteHttpResponse..

{
  "responseJson": {
    "Session": {
      "Id": "ABwppHFkFuGBF-UawPmIkxWpkfM1Hb5An7h8KnjR302zukmBoKA1NqDp7DfePGzYsyxT5oy--wg5Jkjj","Params": {
        "Phone": 1234562869,"Zip": 37122,"FName": "john doe"
      }
    },"Prompt": {
      "Override": false,"FirstSimple": {
        "Speech": "My webhook response","Text": "My response from webhook"
      }
    },"Scene": {
      "Name": "Start","SlotFillingStatus": "FINAL","Slots": {
        "Phone": {
          "Mode": "required","Status": "SLOT_UNSPECIFIED","Updated": true,"FName": {
          "Mode": "required","Updated": false,"value": "john doe"
        },"Zip": {
          "Mode": "required","value": 37122
        }
      },"Next": {
        "Name": "actions.scene.END_CONVERSATION"
      }
    }
  }
}

解决方法

通过检查 linter 来确保您的代码返回的响应是 json，这似乎是在检查（即 ResponseJson {} 请参阅我对 https://stackoverflow.com/a/66512370/10537202 上类似问题的回复，以使用 webhook 游乐场。