從NodeJS獲取請求中獲取Facebook用戶信息

Question

我正在製作Facebook chatbot並需要一些基本的用戶信息。

我正在寫我的機器人在NodeJS，現在我有我的機器人作爲回聲機器人運行。它所做的只是接收用戶消息並用相同的文本回復給他們。

我想從Facebook獲取用戶姓氏和姓氏以便在郵件中使用。我正在使用Facebook Graph API，並在Facebook文檔中發現了這個問題：

curl -X GET "https://graph.facebook.com/v2.6/<USER_ID>?fields=first_name,last_name,profile_pic&access_token=<PAGE_ACCESS_TOKEN>" 

所以我在終端上運行了這個程序並返回了正確的信息。

我只是想在NodeJS的Chatbot代碼中使用該CURL函數。我查看了這個文檔：https://nodejs.org/docs/v0.5.2/api/http.html#http.request，但無法弄清楚。

那麼如何在NodeJs中運行相同的CURL請求以獲取用戶名？

這裏是我的代碼：

var express = require('express'); 
var bodyParser = require('body-parser'); 
var request = require("request") 

var app = express(); 
var port = process.env.PORT || 3000; 

var mongoose = require('mongoose'); 
mongoose.connect('mongodb://#@ds013911.mlab.com:13911/wyrdbot'); 

var db = mongoose.connection; 
db.on('error', console.error.bind(console, 'connection error:')); 
db.once('open', function() { 
    console.log("We're connceted") 
}); 

// body parser middleware 
app.use(bodyParser.json()) 
app.use(bodyParser.urlencoded({ extended: true })); 

app.listen(port, function() { 
    console.log('Listening on port ' + port); 
}); 

app.get('/', function (req, res) { 
    if (req.query['hub.verify_token'] === '<myToken>') { 
     res.send(req.query['hub.challenge']); 
     console.log("app.get ran") 
     res.sendStatus(200) 
    } 

    res.send(req.query['hub.challenge']); 
}) 

app.post('/', function (req, res) { 
    console.log("app.post ran") 
    messaging_events = req.body.entry[0].messaging; 
    for (i = 0; i < messaging_events.length; i++) { 
     event = req.body.entry[0].messaging[i]; 
     sender = event.sender.id; 
     if (event.message && event.message.text) { 
      text = event.message.text; 

      if (text === 'Generic') { 
       sendGenericMessage(sender); 
       continue; 
      } 

      sendTextMessage(sender, "Text received, echo: "+ text.substring(0, 200)); 

     } 
    } 

    res.sendStatus(200); 
}); 

var token = "<myToken>"; 

function sendTextMessage(sender, text) { 
    messageData = { 
     text:text 
    } 
    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 message: ', error); 
     } else if (response.body.error) { 
      console.log('Error: ', response.body.error); 
     } 
    }); 
} 

function sendGenericMessage(sender) { 
    messageData = { 
     "attachment": { 
     "type": "template", 
      "payload": { 
       "template_type": "generic", 
       "elements": [{ 
        "title": "First card", 
        "subtitle": "Element #1 of an hscroll", 
        "image_url": "http://messengerdemo.parseapp.com/img/rift.png", 
        "buttons": [{ 
         "type": "web_url", 
         "url": "https://www.messenger.com/", 
         "title": "Web url" 
        },{ 
         "type": "postback", 
         "title": "Postback", 
         "payload": "Payload for first element in a generic bubble", 
        }], 
       },{ 
        "title": "Second card", 
        "subtitle": "Element #2 of an hscroll", 
        "image_url": "http://messengerdemo.parseapp.com/img/gearvr.png", 
        "buttons": [{ 
         "type": "postback", 
         "title": "Postback", 
         "payload": "Payload for second element in a generic bubble", 
        }], 
       }] 
      } 
     } 
    }; 

    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 message: ', error); 
     } else if (response.body.error) { 
      console.log('Error: ', response.body.error); 
     } 
    }); 
} 

任何幫助表示讚賞。謝謝！

Answer 1

看看facebook-node-sdk。

例子：

let url = "https://graph.facebook.com/v2.6/<USER_ID>?fields=first_name,last_name,profile_pic&access_token=<PAGE_ACCESS_TOKEN>"; 
facebook.api(url, function(err, data){ 
    if(err){ 
     console.error(err); 
     res.sendStatus(502); 
     res.end(); 
    } 
    else{ 
     //Do some stuff with the data object 
    } 
});