actions-on-google - 如何从我的 webhook 触发 `action.intent.INTENT_NAME` 意图？

Question

我想用 Dialogflow 和 Google Assistant 以及 Google Transactions API 创建一个聊天机器人，让用户能够订购巧克力盒。现在我的代理包含以下四个意图:

Default Welcome Intent (文字回复:你好，要买巧克力盒吗？)

Default Fallback Intent

Int1 (训练短语:是的，我想要，实现:启用 webhook 调用)

Int2 (事件:actions_intent_TRANSACTION_REQUIREMENTS_CHECK)

我正在使用 Dialogflow Json 而不是 Node.js 将我的代理与 Transactions API 连接起来。我想通过使用 actions.intent.TRANSACTION_REQUIREMENTS_CHECK 来测试用户是否满足交易要求(订购巧克力盒时)。谷歌行动的行动。出于这个原因，按照 Google 文档，当 Int1被触发我正在使用一个将 Google Assistant 连接到以下 python 脚本(后端)的 webhook:

from flask import Flask, render_template, request, jsonify
from flask_cors import CORS
import  requests

app = Flask(__name__)
CORS(app)

@app.route("/",  methods=['POST'])

def index():

    data = request.get_json()    
    intent = data["queryResult"]["intent"]["displayName"]

    if (intent == 'Int1'):

        return jsonify({ "data": {
                "google": {
                "expectUserResponse": True,
                "isSsml": False,
                "noInputPrompts": [],
                "systemIntent": {
                  "data": {
                    "@type": "type.googleapis.com/google.actions.v2.TransactionRequirementsCheckSpec",
                    "paymentOptions": {
                      "actionProvidedOptions": {
                        "displayName": "VISA-1234",
                        "paymentType": "PAYMENT_CARD"
                      }
                    }
                  },
                  "intent": "actions.intent.TRANSACTION_REQUIREMENTS_CHECK"
                                }
                        }
                                        }
                })
    else:
        return jsonify({'message': 'HERE'})

if __name__== "__main__":
    app.run(debug=True)

我在上面返回的 json intent = 'Int1'是 Google 文档中指定的“使用您自己的付款方式检查要求”的选项。
根据谷歌文档，接下来必须这样做:

Receiving the result of a requirements check

After the Assistant fulfills the intent, it sends your fulfillment a request with the actions.intent.TRANSACTION_REQUIREMENTS_CHECK intent with the result of the check.

To properly handle this request, declare a Dialogflow intent that's triggered by the actions_intent_TRANSACTION_REQUIREMENTS_CHECK event.

为此，我定义了 Int2并且作为它的事件 actions_intent_TRANSACTION_REQUIREMENTS_CHECK .

但是，我的后端没有收到任何检查结果，因此我不知道操作 actions.intent.TRANSACTION_REQUIREMENTS_CHECK真的被触发了。为什么会这样？

一般来说，我怎样才能触发一个actions.intent.INTENT_NAME来自我的 webhook/后端的意图？

当我使用 Dialogflow 的 v2 版本时，我在 Int1 时收到以下关于 Dialogflow 上的 webhook 的信息/消息。被触发:

  "webhookStatus": {
    "code": 3,
    "message": "Webhook call failed. Error: Failed to parse webhook JSON response: Cannot find field: data in message google.cloud.dialogflow.v2.WebhookResponse."
  }

在同样的情况下，当 Int1 时，我在 Google Assistant 模拟器上收到以下关于 webhook 的信息/消息。被触发:

  "responseMetadata": {
    "status": {
      "code": 14,
      "message": "Webhook error (206)"
    }

最后，让我提一下，我正在使用 Python 测试所有这些。和 ngrok在我的本地计算机上，所以这可能会造成问题，因为在 Google 文档的开头提到了以下内容:

Warning: The Actions Web Simulator should not be used to test an app with transactions. Please use an Assistant-enabled Android or iOS device to accurately test your app during development.

Answer 1

我终于解决了这个问题。

我不得不更换 key "data"在 Int1 时我发回的 json 中由键 "payload" 触发.换句话说，我必须将我的履行响应调整为 v2 version。的 Dialogflow .

因此，现在我确实在我的后端收到了第二个发布请求，该请求是由于 actions.intent.TRANSACTION_REQUIREMENTS_CHECK 的触发而发送的。和 Int2 .

具体来说，我得到以下信息:

{
    "responseId": "*****************************",
    "queryResult": {
        "queryText": "actions_intent_TRANSACTION_REQUIREMENTS_CHECK",
        "parameters": {},
        "allRequiredParamsPresent": true,
        "fulfillmentText": "HERE",
        "fulfillmentMessages": [
            {
                "text": {
                    "text": [
                        "HERE"
                    ]
                }
            }
        ],
        "outputContexts": [
            {
                "name": "*****************************"
            },
            {
                "name": "*****************************"
            },
            {
                "name": "*****************************"
            },
            {
                "name": "*****************************"
            },
            {
                "name": "*****************************"
            },
            {
                "name": "*****************************",
                "parameters": {
                    "TRANSACTION_REQUIREMENTS_CHECK_RESULT": {
                        "@type": "type.googleapis.com/google.actions.v2.TransactionRequirementsCheckResult",
                        "resultType": "OK"
                    }
                }
            }
        ],
        "intent": {
            "name": "*****************************",
            "displayName": "Int2"
        },
        "intentDetectionConfidence": 1,
        "diagnosticInfo": {},
        "languageCode": "en-us"
    },
    "originalDetectIntentRequest": {
        "source": "google",
        "version": "2",
        "payload": {
            "isInSandbox": true,
            "surface": {
                "capabilities": [
                    {
                        "name": "actions.capability.WEB_BROWSER"
                    },
                    {
                        "name": "actions.capability.MEDIA_RESPONSE_AUDIO"
                    },
                    {
                        "name": "actions.capability.SCREEN_OUTPUT"
                    },
                    {
                        "name": "actions.capability.AUDIO_OUTPUT"
                    }
                ]
            },
            "inputs": [
                {
                    "rawInputs": [
                        {
                            "inputType": "KEYBOARD"
                        }
                    ],
                    "arguments": [
                        {
                            "extension": {
                                "@type": "type.googleapis.com/google.actions.v2.TransactionRequirementsCheckResult",
                                "resultType": "OK"
                            },
                            "name": "TRANSACTION_REQUIREMENTS_CHECK_RESULT"
                        }
                    ],
                    "intent": "actions.intent.TRANSACTION_REQUIREMENTS_CHECK"
                }
            ],
            "user": {
                "lastSeen": "2018-05-16T11:15:14Z",
                "locale": "en-US",
                "userId": "*****************************"
            },
            "conversation": {
                "conversationId": "1526470000479",
                "type": "ACTIVE",
                "conversationToken": "[]"
            },
            "availableSurfaces": [
                {
                    "capabilities": [
                        {
                            "name": "actions.capability.SCREEN_OUTPUT"
                        },
                        {
                            "name": "actions.capability.AUDIO_OUTPUT"
                        }
                    ]
                }
            ]
        }
    },
    "session": "*****************************"
}