为什么我的Telegram机器人不连接到现在的服务器？

Question

我一直遵循Soham Kamani's Telegram bot tutorial，并设法按照教程中的步骤设置机器人并进行响应。

在过去的一周中，我添加了代码来告诉该机器人我想做什么，然后尝试通过将其上传到新的now服务器并相应地更改Webhook来对其进行测试。

但是，该机器人完全没有响应。而且，当我尝试使用原始服务器还原更改并进行测试时，该机器人仍然没有响应。

我不确定自己在做什么错，下面是我的代码片段：

var express = require('express');
var app = express();
var bodyParser = require('body-parser');
const axios = require('axios')

/*
Various functions and variables for the bot here
that are used below
*/

app.use(bodyParser.json()); // for parsing application/json
app.use(bodyParser.urlencoded({
  extended: true
})); // for parsing application/x-www-form-urlencoded

//This is the route the API will call
app.post('/new-message', function(req, res) {
  const {message} = req.body

  //Each message contains "text" and a "chat" object, which has an "id" which is the chat id

  let outputString = "";

  if (message.text.toLowerCase().indexOf('start') === 0) {
    outputString =  newGame() + "\n\n Reply with a number to move it: " + printValidMoves();
    axios.post('https://api.telegram.org/<bot ID here>/sendMessage', {
    chat_id: message.chat.id,
    text: outputString
  })
    .then(response => {
      // We get here if the message was successfully posted
      console.log('Message posted')
      return res.end('ok')
    })
    .catch(err => {
      // ...and here if it was not
      console.log('Error :', err)
      return res.end('Error :' + err)
    })
  }
  else if (ValidTileNum.indexOf(message.text.toLowerCase()) !== -1) {
    let tuple = ValidTileMoves[ValidTileNum.indexOf(message.text.toLowerCase())];
    swapTiles(Grid, BlankSpace[i], BlankSpace[j], tuple[0], tuple[1]);
    if (isSolved())
    {
      outputString = printGrid(Grid) + "\n\n YOU WIN!";
    }
    else
    {
      outputString = printGrid(Grid) + "\n\n Reply with a number to move it: " + printValidMoves();
    }
    axios.post('https://api.telegram.org/<bot ID here>/sendMessage', {
    chat_id: message.chat.id,
    text: outputString
  })
    .then(response => {
      // We get here if the message was successfully posted
      console.log('Message posted')
      return res.end('ok')
    })
    .catch(err => {
      // ...and here if it was not
      console.log('Error :', err)
      return res.end('Error :' + err)
    })
  }
  /*
  if (message.text.toLowerCase().indexOf('start') === 0) {
    axios.post('https://api.telegram.org/<bot ID here>/sendMessage', {
    chat_id: message.chat.id,
    text: outputString
  })
    .then(response => {
      // We get here if the message was successfully posted
      console.log('Message posted')
      return res.end('ok')
    })
    .catch(err => {
      // ...and here if it was not
      console.log('Error :', err)
      return res.end('Error :' + err)
    })
  }
*/
  //else
  res.end()
  
});

// Finally, start our server
app.listen(3000, function() {
  console.log('Telegram app listening on port 3000!');
});

以下是我的package.json文件：

{
  "name": "my-telegram-bot",
  "version": "1.0.0",
  "description": "Testing out a telegram bot",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "start" : "node index.js"
  },
  "author": "Wen Yao",
  "license": "ISC",
  "dependencies": {
    "axios": "^0.17.1",
    "body-parser": "^1.18.2",
    "express": "^4.16.2"
  }
}