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Node.js Bot.start() Method

  • Last Updated : 07 Aug, 2021

The Bot.start() method is used in the Node.js Telegraf Bot Module. This module provides various functions to interact with the official Telegram Bot API. This method executes when a new user first time starts the bot or type reserved module keyword /start.


TelegrafBot.start(callback function(Context function))

Parameters: This Method accepts one parameter as mentioned above and described below: 

  • Callback function: It accepts only one parameter that holds the Update object from Telegram API.

Return Type: The return type of the function is void. 

Installing Module: Install this module using the following command: 

npm install telegraf

Steps to get the keys: 

1. First, get the GET BOT_TOKEN from BOTFATHER in the telegram. Just search for BOTFATHER in Telegram and select the verified one as shown below: 

2. Type /start and then click on /newbot as shown below: 

3. Now type the name of the bot and that must be unique. 

4. Now just copy the token From the BotFather. And for deleting the token simply search /delete token in BotFather.

Project Structure:  

Filename: bot.js 


// Requiring module
const telegraf = require("telegraf");
// Set your token
var token = 'YOUR_TOKEN';
// Creating a new object of Telegraf
const bot = new telegraf(token);
// The ctx object holds the update
// object from Telegram API
bot.start( ctx => {
  // Sending the message
  ctx.reply("Thanking you for choosing new bot");
// Calling the launch function

Run the bot.js file using the following command:

node bot.js


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