【发布时间】：2018-05-22 12:29:13
【问题描述】：
我想用 Dialogflow 和 Google Assistant 以及 Google Transactions API 创建一个聊天机器人，让用户能够订购一些商品。目前我的代理包含以下四个意图：
-
Default Welcome Intent（短信回复：你好，要买巧克力盒吗？） Default Fallback Intent-
Int3（训练短语：是的，我想要，实现：启用 webhook） -
Int4（事件：actions_intent_TRANSACTION_DECISION，实现：启用 webhook）
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 Google 操作的 actions.intent.TRANSACTION_DECISION 操作最终用户满足交易要求来为用户构建购物车和订单。出于这个原因，按照谷歌文档，当Int3被触发时，我正在使用一个连接谷歌助手我的后端的网络钩子，它发回以下json（触发actions.intent.TRANSACTION_DECISION）：
{
"fulfillmentText": "This is your order preview:",
"payload": {
"google": {
"expectUserResponse": true,
"isSsml": false,
"noInputPrompts": [],
"systemIntent": {
"data": {
"@type": "type.googleapis.com/google.actions.v2.TransactionDecisionValueSpec",
"orderOptions": {
"requestDeliveryAddress": true
},
"paymentOptions": {
"actionProvidedOptions": {
"displayName": "VISA **** **** **** 3235",
"paymentType": "PAYMENT_CARD"
}
},
"proposedOrder": {
"cart": {
"lineItems": [
{
"description": "Book",
"id": "1",
"name": "Book",
"price": {
"amount": {
"currencyCode": "USD",
"nanos": 0,
"units": 31
},
"type": "ACTUAL"
},
"quantity": 2,
"subLines": [],
"type": "REGULAR"
}
],
"merchant": {
"id": "Amazon",
"name": "Amazon"
},
"otherItems": []
},
"id": "<UNIQUE_ORDER_ID>",
"otherItems": [
{
"id": "Subtotal",
"name": "Subtotal",
"price": {
"amount": {
"currencyCode": "USD",
"nanos": 0,
"units": 62
},
"type": "ACTUAL"
},
"type": "SUBTOTAL"
},
{
"id": "Delivery fees",
"name": "Delivery fees",
"price": {
"amount": {
"currencyCode": "USD",
"nanos": 0,
"units": 10
},
"type": "ACTUAL"
},
"type": "FEE"
}
],
"totalPrice": {
"amount": {
"currencyCode": "USD",
"units": 72
},
"type": "ACTUAL"
}
}
},
"intent": "actions.intent.TRANSACTION_DECISION"
}
}
}
}
但是，我在 Google 助理模拟器上收到以下错误：
MalformedResponse
expected_inputs[0].possible_intents[0].input_value_data.transaction_decision_value_spec.proposed_order: subtotal price is not sum of regular lineItems. Expected-> Sum of line item price: units: 31 nanos: 0 currency: USD Actual-> Provided total price: units: 62 nanos: 0 currency: USD.
MalformedResponse
expected_inputs[0].possible_intents[0].input_value_data.transaction_decision_value_spec.proposed_order: total price is not sum of lineItems and otherItems. Expected-> Sum of line item price: units: 42 nanos: 0 currency: USD Actual-> Provided total price: units: 72 nanos: 0 currency: USD.
为什么我在相应的 lineItem 中指定了 "quantity": 2 后收到此错误？
很明显，小计应该是units: 62，因为我订购了"quantity": 2的产品，每个units: 31的价格...
最终的订单预览如下所示（这是从 Google 文档示例中借用的）：
【问题讨论】：
标签： actions-on-google dialogflow-es