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Cover image for Creating simple telegram bot in Node.js and Telegraf.js (step by step)
Jahongir Sobirov
Jahongir Sobirov

Posted on

Creating simple telegram bot in Node.js and Telegraf.js (step by step)

We will learn how to create a simple bot in Node.js and Telegraf.js. It's very easy. Let’s first learn what Node.js is.

What is Node.js?

Node.js is a runtime application. It allows you to use the JS programming language outside the browser. With Node.js you can work with data analysis or write a telegram bot and create HTTP servers.

What is Telegraf.js?

Telegraf.js is a framework for Node.js that allows you to create awesome bots in Node.js runtime.

Step 1: Download Node.js

Alt Text
After downloading Node.js, let's check its version.
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Step 2: Creating file for our simple telegram bot

mkdir bot-app
cd bot-app
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Step 3: With the help of Botfather we will create our new bot

When we create a bot in Botfather, it provides us with a bot token. The bot token, on the other hand, helps us write logic to it in node.js.
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Step 4: We download Telegraf.js via NPM.

npm install telegraf
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We start creating the bot by downloading Telegraf.js.

Step 5: Creating bot in Node.js and Telegraf.js

Let's first create a file called bot.js. Importing Telegraf in bot.js file:

// bot.js
const { Telegraf } = require('telegraf'); // importing telegraf.js
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Now we declare a variable named bot and add to it the token of the bot we created in botfather.

// bot.js
var bot = new Telegraf('1928550358:AAH9Y4Bscfu2-y_OptOkzi3VyhbLaV84a8Q') // We saved our bot token to the bot variable 
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We write down what our bot will do when it receives the start command.

// bot.js
bot.start(ctx => ctx.reply(`
   Hi, I'm a simple bot
`))

bot.launch();
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Let's check it out now:
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We’ll add some options to our boat.

// bot.js
bot.start(ctx => ctx.reply(`
   Hi, I'm a simple bot (please write /help)
`))
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Enter what the bot will do when the word /help is typed.

// bot.js
bot.help(ctx => ctx.reply(`
   Hello, world!!!
`))
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All codes:

const { Telegraf } = require('telegraf'); // importing telegraf.js
var bot = new Telegraf('1928550358:AAH9Y4Bscfu2-y_OptOkzi3VyhbLaV84a8Q') // We saved our bot token to the bot variable 
bot.start(ctx => ctx.reply(`
Hi, I'm a simple bot (please write /help)
`))

bot.help(ctx => ctx.reply(`
   Hello world!
`))

bot.launch();
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Result:
image

Top comments (7)

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rodrigoibarra profile image
Rodrigo Ibarra

Hello! thanks for the tutorial. Where can I find all the methods that I can create with Telegraf? I saw the Telegraf documentation but can't find it.
Thank you.

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jahongir2007 profile image
Jahongir Sobirov Author
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rickyo86 profile image
richard

Cool

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barzi92367868 profile image
Barzi

This barely scratches the surface... I wasn't expecting a full-fledged article, but this is borderline useless

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jahongir2007 profile image
Jahongir Sobirov Author

Ok sir

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aryaanish121 profile image
Arya Anish

Nice tuotial, but please hide you token

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jahongir2007 profile image
Jahongir Sobirov Author

I don’t want that and it’s no secret to me

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