添加履行代码以为订单机器人制作购物车。给我未定义的数量参数

Question

the function below prints the item and in what quantity that has been ordered

function confirmitem(agent){
    const item = agent.getContext('item'),
    Food = item.parameters.Food, 
    quantity = item.parameters.quantity;
    agent.add('Confirming '+Food+' in a quantity of '+quantity);
}

below is the output context

"outputContexts": [{
    "name": "projects/simple-dialog-wtckcj/agent/sessions/1a459958-2249-5973-9561-5418940b0b22/contexts/item",
    "lifespanCount": 4,
    "parameters": {
        "Food": "matooke",
        "Food.original": "matooke",
        "quantity": {
            "number.original": "1",
            "number": 1
        },
        "quantity.original": "1"
    }
},
{
"name": "projects/simple-dialog-wtckcj/agent/sessions/1a459958-2249-5973-9561-5418940b0b22/contexts/itemconfirm",
"lifespanCount": 4,
"parameters": {
    "quantity": {
        "number": 1,
        "number.original": "1"
    },
    "quantity.original": "1",
    "Food": "matooke",
    "Food.original": "matooke"
}
}
]

the actual output is 'Confirming matooke in a quantity of [object Object]'

Answer 1

问题是 item.parameters.quantity 是一个值为

的对象

    {
        "number.original": "1",
        "number": 1
    },

当您尝试打印此对象时，打印对象的正常方法就是使用“[object Object]”，如您所见。

您可能想使用 item.parmeters.quantity.number 之类的内容访问此对象内的 "number" 字段。如果你想访问 "original" 值，这正是用户所说的，你可能需要使用类似 item.parameters["quantity.original"] 的东西。您需要使用这种索引方法，因为 "quantity.original" 包含句点。

添加履行代码以为订单机器人制作购物车。给我未定义的数量参数

Adding fulfilment code to make a cart for order bot. gives me undefined on quantity parameter

javascript

chat

chatbot

node.js

dialogflow-es-fulfillment