Question

我在开发Facebook messenger机器人时面临两个问题，而且我是编程的新手。

我按照FB的教程添加代码 - 欢迎消息并将其部署在heroku中，但我的机器人没有弹出上述消息。

app.post('/webhook/', function (req, res) {
let messaging_events = req.body.entry[0].messaging
for (let i = 0; i < messaging_events.length; i++) {
  let event = req.body.entry[0].messaging[i]
  let sender = event.sender.id
  if (event.message && event.message.text) {
    let text = event.message.text
    if (text === 'Generic') {
        sendGenericMessage(sender)
        continue
    }
    if (text === 'button') {
        sendbuttonmessage(sender)
        continue
    }
    welcomemessage(sender)
    //sendbuttonmessage(sender)
  }
  if (event.postback) {
    let text = JSON.stringify(event.postback)
    sendTextMessage(sender, "Postback received: "+text.substring(0, 200), token)
    continue
  }
}
res.sendStatus(200)   })

function welcomemessage (sender) {   let messageData = {
    "setting_type":"call_to_actions",   "thread_state":"new_thread",   "call_to_actions":[
    {
      "message":{
        "text":"Welcome to My Company!"
      }
    }   ] }   request({
    url: 'https://graph.facebook.com/v2.6/me/messages',
    qs: {access_token:token},
      method: 'POST',
      json: {
          recipient: {id:sender},
          message: messageData,
      }   }, function(error, response, body) {
      if (error) {
          console.log('Error sending messages: ', error)
      } else if (response.body.error) {
          console.log('Error: ', response.body.error)
      }   }) }

当ppl点击它们时，如何弹出另一个按钮？例如：在点击按钮的网址后发送功能sendbuttonmessage(sender)。

function sendbuttonmessage (sender) {
    let messageData = {
        "attachment": {
          "type":"template",
          "payload":{
            "template_type":"button",
            "text":"Welcome to Taikoo Place. How can we help?",
            "buttons":[
              {
                "type":"web_url",
                "url":"https://peterapparel.parseapp.com",
                "title":"Show Website"
              },
              {
                "type":"postback",
                "title":"Service Lift Booking",
                "payload":"what"
                //"payload":"USER_DEFINED_PAYLOAD"
              },
            ]
          }
        }
      }

Answer 1

对于第一个问题，您应该将欢迎消息设置为显示https://developers.facebook.com/docs/messenger-platform/send-api-reference#welcome_message_configuration的独立POST请求，因为它使用不同的API并且只应在ONCE执行。

curl -X POST -H "Content-Type: application/json" -d '{
  "setting_type":"call_to_actions",
  "thread_state":"new_thread",
  "call_to_actions":[
    {
      "message":{
        "text":"Welcome to My Company!"
      }
    }
  ]
}' "https://graph.facebook.com/v2.6/<PAGE_ID>/thread_settings?access_token=<PAGE_ACCESS_TOKEN>"

对于第二个问题，您无法检测用户何时单击按钮的Web网址，因为它将从外部转到该链接。但是，您可以首先使用postback设置设置消息，在接收消息时可以处理回发，请参阅此处处理回发的方法https://developers.facebook.com/docs/messenger-platform/quickstart BTW还记得在Subscription Fields下设置 messaging_postbacks 。

Facebook messenger bot问题（欢迎信息和按钮信息）

1 个答案: