Facebook Messenger中有一个按钮 . Dialogflow上是否有点击按钮事件？我无法在任何地方找到它，包括Dialogflow文档 . 我有一个添加到购物车的按钮，但我不知道如何在点击它时调用该事件 . 我是对话流和使用javascript的新手 . 谢谢 . 这是我的代码 .
function clothing_Women(agent) {
agent.add("Here are clothings for Women.")
agent.add(new Payload(agent.FACEBOOK, {
attachment: {
type: "template",
payload: {
template_type: "generic",
elements:
[
{ //item 1
title: "Women Green Shirt",
image_url: "https://ae01.alicdn.com/kf/HTB1OWMiXF9gSKJjSspbq6zeNXXaR/Sexy-Women-Lady-Deep-V-Neck-T-Shirt-Casual-Plunge-Cleavage-Button-Tops-Tee-Shirt-Hot.jpg",
default_action: {
type: "web_url",
url: "www.lazada.com"
},
buttons: [{
type: "postback",
payload: "addtocart",
title: "View more details"
}, {
type: "postback",
payload: "addtocart",
title: "Add to cart"
}]
},
{ //item 2
title: "Women Black shirt",
image_url: "https://cdn.shopify.com/s/files/1/2237/3241/products/Womens_Short_Sleeve_-_Single_Black.jpg?v=1524699432",
default_action: {
type: "web_url",
url: "www.lazada.com"
},
buttons: [{
type: "postback",
payload: "addtocart",
title: "View more details"
}, {
type: "postback",
payload: "addtocart",
title: "Add to cart"
}]
},
{ //item 2
title: "Women White Shirt",
image_url: "https://cdn.mec.ca/medias/sys_master/fallback/fallback/8802711109662/5027821-WHT00-fallback.jpg",
default_action: {
type: "web_url",
url: "www.lazada.com"
},
buttons: [{
type: "postback",
payload: "addtocart",
title: "View more details"
}, {
type: "postback",
payload: "addtocart",
title: "Add to cart"
}]
}
]
}
}
}));
}