Facebook Webhooks: объект Body не определен - PullRequest
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Facebook Webhooks: объект Body не определен

0 голосов
/ 14 марта 2019

Я слежу за уроком прямо с Facebook и отправляю тестовые события с их консоли. (Получено в POST) Я успешно передаю событие в webhook, но объект body с данными о событии не определен. Я использую анализатор тела, как показано на них. Должен ли я сделать это по-другому? 

'use strict';

// Imports dependencies and set up http server
const
  express = require('express'),
  bodyParser = require('body-parser'),
  request = require('request'),
  app = express().use(bodyParser.json()); // creates express http server

  const PORT = process.env.PORT;
  const PAGE_TOKEN = process.env.PAGE_TOKEN;  

// Sets server port and logs message on success
app.listen(PORT, () => console.log(`Server is listening on port ${PORT}`));

// Adds support for GET requests to our webhook
app.get('/webhook', (req, res) => {

  // Your verify token. Should be a random string.
  let VERIFY_TOKEN = "hello_token_success"
    
  // Parse the query params
  let mode = req.query['hub.mode'];
  let token = req.query['hub.verify_token'];
  let challenge = req.query['hub.challenge'];
    
  // Checks if a token and mode is in the query string of the request
  if (mode && token) {
  
    // Checks the mode and token sent is correct
    if (mode === 'subscribe' && token === VERIFY_TOKEN) {
      
      // Responds with the challenge token from the request
      console.log('WEBHOOK_VERIFIED');
      res.status(200).send(challenge);
    
    } else {
      // Responds with '403 Forbidden' if verify tokens do not match
      res.sendStatus(403);      
    }
  }
});


app.post('/webhook', (req, res) => {  
	console.log(req); 

  // Parse the request body from the POST
  let body = req.body;
  console.log('Body: ' + body); 

  let bodyObject = body.object; 
  console.log('Object: ' + bodyObject); 

  let webhookEntry = body.entry; 
  console.log('Entry: ' + webhookEntry); 

  // Check the webhook event is from a Page subscription
  if (body.object === 'page') {

    // Iterate over each entry - there may be multiple if batched
    body.entry.forEach(function(entry) {
    	console.log('Entry inside forEach: ' + entry); 
    	console.log('Object of Entry: ' + entry.object); 
      // Get the webhook event. entry.messaging is an array, but 
      // will only ever contain one event, so we get index 0
      //let webhook_event = entry.messaging[0];
      // let webhook_event = entry.conversations[0]; 
      // console.log(webhook_event);

      // // Get the sender PSID
      // let sender_psid = webhook_event.sender.id;
      // console.log('Sender PSID: ' + sender_psid);

      // // Check if the event is a message or postback and
      // // pass the event to the appropriate handler function
      // if (webhook_event.message) {
      //   handleMessage(sender_psid, webhook_event.message);        
      // } else if (webhook_event.postback) {
      //   handlePostback(sender_psid, webhook_event.postback);
      // }
      
    });

    // Return a '200 OK' response to all events
    res.status(200).send('EVENT_RECEIVED');

  } else {
    // Return a '404 Not Found' if event is not from a page subscription
    res.sendStatus(404);
  }

});
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