如何让 Facebook Messenger Bot 在按钮单击时发送消息

【问题标题】：How to have Facebook Messenger Bot send a message on button click如何让 Facebook Messenger Bot 在按钮单击时发送消息
【发布时间】：2018-04-07 10:23:10
【问题描述】：

"type": "postback",
"title": "What can Chatbots do",
"payload": "One day Chatbots will control the Internet of Things! You will be able to control your homes temperature with a text",
 }, {
 "type": "postback",
 "title": "The Future",
 "payload": "Chatbots are fun! One day your BFF might be a Chatbot",
  }],

例如，当用户点击“未来”时，应用会以

的形式向用户发送消息

Postback received: {"payload":"Chatbots are fun! One day your BFF might be a Chatbot"}

我怎样才能改变它，使它只是以消息形式发送？

【问题讨论】：

标签： bots facebook-messenger

【解决方案1】：

Payload 仅供您参考，当用户单击按钮时，您会在 webhook 中收到有效负载。然后你可以发回你想要的任何消息。例如，您可以将按钮设置为：

[{"type": "postback",
    "title": "What can Chatbots do",
    "payload": "payload_1",
    }, 
    {
    "type": "postback",
    "title": "The Future",
    "payload": "payload_2",
    }]

在您的 webhook 中，您可以使用以下方式发回消息：

if (event.postback) {
var text = JSON.stringify(event.postback.payload)

if(text === "\"payload_1\""){
    sendTextMessage(sender, "One day Chatbots will control the Internet of Things! You will be able to control your homes temperature with a text")
}
else if (text === "\"payload_2\""){
    sendTextMessage(sender, "Chatbots are fun! One day your BFF might be a Chatbot")
}
}

【讨论】：