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Telegraf

Introduction

Bots are special Telegram accounts designed to handle messages automatically. Users can interact with bots by sending them command messages in private or group chats. These accounts serve as an interface for code running somewhere on your server.

Telegraf is a library that makes it simple for you to develop your own Telegram bots using JavaScript or TypeScript.

Features

Installation

npm install telegraf --save

or using yarn

yarn add telegraf

Example

const { Telegraf } = require('telegraf')

const bot = new Telegraf(process.env.BOT_TOKEN)
bot.start((ctx) => ctx.reply('Welcome'))
bot.help((ctx) => ctx.reply('Send me a sticker'))
bot.on('sticker', (ctx) => ctx.reply('👍'))
bot.hears('hi', (ctx) => ctx.reply('Hey there'))
bot.launch()
const { Telegraf } = require('telegraf')

const bot = new Telegraf(process.env.BOT_TOKEN)
bot.command('oldschool', (ctx) => ctx.reply('Hello'))
bot.command('modern', ({ reply }) => reply('Yo'))
bot.command('hipster', Telegraf.reply('λ'))
bot.launch()

For additional bot examples see examples folder.

Resources:

Community bots:

Name Description
BibleBot Bot to get bible verses
BibleQuizzleBot Bible quiz game - group fun similar to Quizzarium
BitcoinDogBot Bitcoin prices, Technical analysis and Alerts!
BooksAndBot An inline bot that allows you to search for books and share them in a conversation. Powered by Goodreads
CaptchaOnlyBot Configurable question \w set of buttons on a new group user
ChannelHashBot Keep track of hashtags that are sent in your group by forwarding them to a channel
ChatAdmin Helps to administer the chats
ChatLinkerBot The bridge between jabber and telegram
ChessBot Inline chess game in a message
CounterBot Keep track of multiple counters and increment, decrement, set and reset them to your hearts content
DefendTheCastle Telegram Bot Game - Defend The Castle
DiscordTelegramBridge A simple, small and fast discord to telegram bridge written in node.js
EveMoviesBot Track movie torrent releases and get notifications when it's there
GNU/LinuxIndonesiaBot BGLI Bot a.k.a Miranda Salma
GoogleItBot Instant inline search
GroupsAdminBot Telegram groups administrator bot
KitchenTimerBot Bot for setting up multiple timers for cooking
LyricsGramBot Song Lyrics
MangadexBot Read manga from Mangadex
Memcoin Memcoin for the Memconomy
MetalArchivesBot Unofficial metal-archives.com bot
MidnaBot Midnabot for telegram
MineTelegram Minecraft - Telegram bridge
NodeRSSBot Bot to subscribe RSS feed which allows many configurations
Nyaa.si Bot Nyaa.si torrents
OCRToolBot Tesseract text from image recognition
OneQRBot Scan and generate QR
OrdisPrime A telegram bot helper for warframe
PodSearchBot TypeScript
RandomPassBot Generate a password
Randy Randy Marsh raffle Telegram bot
ReferalSystem Channels promoter
ScrobblerBot An unofficial Last.fm Scrobbler
Shieldy Telegram bot repository
SimpleRegBot Simple bot for registration users to any event
SpyfallGameBot Simple telegram bot for an interesting board game
StickersPlayBot Search series covers stickers via inline
StoreOfBot Search, explore & discover the bests bots, channel or groups
SyntaxHighlighterBot A code highlighting tool for telegram chats
TelegrafRutrackerTransmission Bot for searching torrents at Rutracker and add them to your Transmission web service
TelegramTelegrafBot Telegram bot example using Telegraf with easy configuration steps
Temply
TereGramBot Simple telegram node bot with a few funny commands
TheGuardBot Manage a network of related groups
ThemerBot Create themes for Telegram based on colors chosen from a picture
TTgram Receive and send Twitters used a Telegram Bot
Voicy
Watchy
YtSearchBot Bot to share YouTube fetched videos from any channel
YTubevideoBot Bot created to help you find and share any video from youtube
Send PR to add link to your bot

Getting started

Telegram token

To use the Telegram Bot API, you first have to get a bot account by chatting with BotFather.

BotFather will give you a token, something like 123456789:AbCdfGhIJKlmNoQQRsTUVwxyZ.

Bot

A Telegraf bot is an object containing an array of middlewares which are composed and executed in a stack-like manner upon request. Is similar to many other middleware systems that you may have encountered such as Express, Koa, Ruby's Rack, Connect.

Middleware

Middleware is an essential part of any modern framework. It allows you to modify requests and responses as they pass between the Telegram and your bot.

You can imagine middleware as a chain of logic connection your bot to the Telegram request.

Middleware normally takes the two parameters: ctx and next.

ctx is the context for one Telegram update. It contains mainly two things:

  • the update object, it contains for example the incoming message and the respective the chat, and
  • a number of useful methods for reacting to the update, such as replying to the message or answering a callback query.

See the context section below for a detailed overview.

next is a function that is invoked to execute the downstream middleware. It returns a Promise with a function then for running code after completion.

Here is a simple example for how to use middleware to track the response time, using async and await to deal with the Promise.

const bot = new Telegraf(process.env.BOT_TOKEN)

bot.use(async (ctx, next) => {
  const start = new Date()
  await next()
  const ms = new Date() - start
  console.log('Response time: %sms', ms)
})

bot.on('text', (ctx) => ctx.reply('Hello World'))
bot.launch()

Note how the function next is used to invoke the subsequent layers of the middleware stack, performing the actual processing of the update (in this case, replying with “Hello World”).

What you can do with middleware

Middleware is an extremely flexible concept that can be used for a myriad of things, including these:

  • storing data per chat, per user, you name it
  • allowing access to old messages (by storing them)
  • making internationalization available
  • rate limiting
  • tracking response times (see above)
  • much more

All important kinds of middleware have already been implemented, and the community keeps on adding more. Just install a package via npm, add it to your bot and you're ready to go.

Here is a list of

Known middleware

Error handling

By default Telegraf will print all errors to stderr and rethrow error.

To perform custom error-handling logic, use following snippet:

const bot = new Telegraf(process.env.BOT_TOKEN)
bot.catch((err, ctx) => {
  console.log(`Ooops, encountered an error for ${ctx.updateType}`, err)
})
bot.start((ctx) => {
  throw new Error('Example error')
})
bot.launch()

Context

A Telegraf Context encapsulates telegram update. Context is created per request and contains following props:

Property Description
ctx.telegram Telegram client instance
ctx.updateType Update type (message, inline_query, etc.)
[ctx.updateSubTypes] Update subtypes (text, sticker, audio, etc.)
[ctx.message] Received message
[ctx.editedMessage] Edited message
[ctx.inlineQuery] Received inline query
[ctx.chosenInlineResult] Received inline query result
[ctx.callbackQuery] Received callback query
[ctx.shippingQuery] Shipping query
[ctx.preCheckoutQuery] Precheckout query
[ctx.channelPost] New incoming channel post of any kind — text, photo, sticker, etc.
[ctx.editedChannelPost] New version of a channel post that is known to the bot and was edited
[ctx.poll] New version of a anonymous poll that is known to the bot and was changed
[ctx.pollAnswer] This object represents an answer of a user in a non-anonymous poll.
[ctx.chat] Current chat info
[ctx.from] Sender info
[ctx.match] Regex match (available only for hears, command, action, inlineQuery handlers)
ctx.webhookReply Shortcut to ctx.telegram.webhookReply
bot.use((ctx) => {
  console.log(ctx.message)
})
Extending context

The recommended way to extend bot context:

const bot = new Telegraf(process.env.BOT_TOKEN)

bot.context.db = {
  getScores: () => { return 42 }
}

bot.on('text', (ctx) => {
  const scores = ctx.db.getScores(ctx.message.from.username)
  return ctx.reply(`${ctx.message.from.username}: ${scores}`)
})

bot.launch()

If you're using TypeScript, have a look at the section below about usage with TypeScript. (You need to extend the type of the context.)

Shortcuts

Context shortcuts for message update:

Shortcut Bound to
addStickerToSet telegram.addStickerToSet
createNewStickerSet telegram.createNewStickerSet
deleteChatPhoto telegram.deleteChatPhoto
deleteMessage telegram.deleteMessage
deleteStickerFromSet telegram.deleteStickerFromSet
exportChatInviteLink telegram.exportChatInviteLink
forwardMessage telegram.forwardMessage
getChat telegram.getChat
getChatAdministrators telegram.getChatAdministrators
getChatMember telegram.getChatMember
getChatMembersCount telegram.getChatMembersCount
getMyCommands telegram.getMyCommands
getStickerSet telegram.getStickerSet
leaveChat telegram.leaveChat
pinChatMessage telegram.pinChatMessage
reply telegram.sendMessage
replyWithAudio telegram.sendAudio
replyWithChatAction telegram.sendChatAction
replyWithDice telegram.sendDice
replyWithDocument telegram.sendDocument
replyWithGame telegram.sendGame
replyWithHTML telegram.sendMessage
replyWithInvoice telegram.sendInvoice
replyWithLocation telegram.sendLocation
replyWithMarkdown telegram.sendMessage
replyWithMediaGroup telegram.sendMediaGroup
replyWithPhoto telegram.sendPhoto
replyWithPoll telegram.sendPoll
replyWithQuiz telegram.sendQuiz
replyWithSticker telegram.sendSticker
replyWithVideo telegram.sendVideo
replyWithVideoNote telegram.sendVideoNote
replyWithVoice telegram.sendVoice
setChatDescription telegram.setChatDescription
setChatPhoto telegram.setChatPhoto
setChatTitle telegram.setChatTitle
setMyCommands telegram.setMyCommands
setPassportDataErrors telegram.setPassportDataErrors
setStickerPositionInSet telegram.setStickerPositionInSet
setStickerSetThumb telegram.setStickerSetThumb
setStickerSetThumb telegram.setStickerSetThumb
stopPoll telegram.stopPoll
unpinChatMessage telegram.unpinChatMessage
uploadStickerFile telegram.uploadStickerFile
unbanChatMember telegram.unbanChatMember

Context shortcuts for callback_query update:

Shortcut Bound to
addStickerToSet telegram.addStickerToSet
answerCbQuery telegram.answerCbQuery
answerGameQuery telegram.answerGameQuery
createNewStickerSet telegram.createNewStickerSet
deleteChatPhoto telegram.deleteChatPhoto
deleteMessage telegram.deleteMessage
deleteStickerFromSet telegram.deleteStickerFromSet
editMessageCaption telegram.editMessageCaption
editMessageMedia telegram.editMessageMedia
editMessageReplyMarkup telegram.editMessageReplyMarkup
editMessageText telegram.editMessageText
exportChatInviteLink telegram.exportChatInviteLink
forwardMessage telegram.forwardMessage
getChat telegram.getChat
getChatAdministrators telegram.getChatAdministrators
getChatMember telegram.getChatMember
getChatMembersCount telegram.getChatMembersCount
getStickerSet telegram.getStickerSet
leaveChat telegram.leaveChat
pinChatMessage telegram.pinChatMessage
reply telegram.sendMessage
replyWithAnimation telegram.sendAnimation
replyWithAudio telegram.sendAudio
replyWithChatAction telegram.sendChatAction
replyWithDice telegram.sendDice
replyWithDocument telegram.sendDocument
replyWithGame telegram.sendGame
replyWithHTML telegram.sendMessage
replyWithInvoice telegram.sendInvoice
replyWithLocation telegram.sendLocation
replyWithMarkdown telegram.sendMessage
replyWithMediaGroup telegram.sendMediaGroup
replyWithPhoto telegram.sendPhoto
replyWithPoll telegram.sendPoll
replyWithSticker telegram.sendSticker
replyWithVideo telegram.sendVideo
replyWithVideoNote telegram.sendVideoNote
replyWithVoice telegram.sendVoice
setChatDescription telegram.setChatDescription
setChatPhoto telegram.setChatPhoto
setChatTitle telegram.setChatTitle
setStickerPositionInSet telegram.setStickerPositionInSet
setStickerSetThumb telegram.setStickerSetThumb
stopPoll telegram.stopPoll
unpinChatMessage telegram.unpinChatMessage
uploadStickerFile telegram.uploadStickerFile
unbanChatMember telegram.unbanChatMember

Context shortcuts for inline_query update:

Shortcut Bound to
answerInlineQuery telegram.answerInlineQuery

Context shortcuts for shipping_query update:

Shortcut Bound to
answerShippingQuery telegram.answerShippingQuery

Context shortcuts for pre_checkout_query update:

Shortcut Bound to
answerPreCheckoutQuery telegram.answerPreCheckoutQuery
Shortcuts usage example
const bot = new Telegraf(process.env.BOT_TOKEN)

bot.command('quit', (ctx) => {
  // Explicit usage
  ctx.telegram.leaveChat(ctx.message.chat.id)

  // Using context shortcut
  ctx.leaveChat()
})

bot.on('text', (ctx) => {
  // Explicit usage
  ctx.telegram.sendMessage(ctx.message.chat.id, `Hello ${ctx.state.role}`)

  // Using context shortcut
  ctx.reply(`Hello ${ctx.state.role}`)
})

bot.on('callback_query', (ctx) => {
  // Explicit usage
  ctx.telegram.answerCbQuery(ctx.callbackQuery.id)

  // Using context shortcut
  ctx.answerCbQuery()
})

bot.on('inline_query', (ctx) => {
  const result = []
  // Explicit usage
  ctx.telegram.answerInlineQuery(ctx.inlineQuery.id, result)

  // Using context shortcut
  ctx.answerInlineQuery(result)
})

bot.launch()

State

The recommended namespace to share information between middlewares.

const bot = new Telegraf(process.env.BOT_TOKEN)

// Naive authorization middleware
bot.use((ctx, next) => {
  ctx.state.role = getUserRole(ctx.message)
  return next()
})

bot.on('text', (ctx) => {
  return ctx.reply(`Hello ${ctx.state.role}`)
})

bot.launch()

Session

Sessions are used to store data per user or per chat (or per whatever if you want, this is the session key).

Think of a session as an object that can hold any kind of information you provide. This could be the ID of the last message of the bot, or simply a counter about how many photos a user already sent to the bot.

You can use session middleware to add sessions support to your bot. This will do the heavy lifting for you. Using session middleware will result in a sequence like this:

  1. A new update comes in.
  2. The session middleware loads the current session data for the respective chat/user/whatever.
  3. The session middleware makes that session data available on the context object ctx.
  4. Your middleware stack is run, all of your code can do its work.
  5. The session middleware takes back control and checks how you altered the session data on the ctx object.
  6. The session middleware write the session back to your storage, i.e. a file, a database, an in-memory storage, or even a cloud storage solution.

Here is a simple example of how the built-in session middleware of Telegraf can be used to count photos.

const session = require('telegraf/session')

const bot = new Telegraf(process.env.BOT_TOKEN)
bot.use(session())
bot.on('text', (ctx) => {
  ctx.session.counter = ctx.session.counter || 0
  ctx.session.counter++
  return ctx.reply(`Message counter:${ctx.session.counter}`)
})

bot.launch()

In this example, the session middleware just stores the counters in-memory. This means that all counters will be lost when you stop your bot. If you want to store data even across restarts, you need to use persistent sessions.

Note: For persistent sessions you can use any of telegraf-session-* middleware.

Tip: To use same session in private chat with bot and in inline mode, use following session key resolver:

{
  getSessionKey: (ctx) => {
    if (ctx.from && ctx.chat) {
      return `${ctx.from.id}:${ctx.chat.id}`
    } else if (ctx.from && ctx.inlineQuery) {
      return `${ctx.from.id}:${ctx.from.id}`
    }
    return null
  }
}

Update types

You can react to several different types of updates (and even sub-types of them), see the example below.

Supported update types:

  • message
  • edited_message
  • callback_query
  • inline_query
  • shipping_query
  • pre_checkout_query
  • chosen_inline_result
  • channel_post
  • edited_channel_post

Available update sub-types:

  • text
  • audio
  • dice
  • document
  • photo
  • sticker
  • video
  • voice
  • contact
  • location
  • venue
  • forward
  • new_chat_members
  • left_chat_member
  • new_chat_title
  • new_chat_photo
  • delete_chat_photo
  • group_chat_created
  • migrate_to_chat_id
  • supergroup_chat_created
  • channel_chat_created
  • migrate_from_chat_id
  • pinned_message
  • game
  • video_note
  • invoice
  • successful_payment
  • connected_website
  • passport_data
  • poll
// Handle message update
bot.on('message', (ctx) => {
  return ctx.reply('Hello')
})

// Handle sticker or photo update
bot.on(['sticker', 'photo'], (ctx) => {
  console.log(ctx.message)
  return ctx.reply('Cool!')
})

Official Docs

Webhooks

require('dotenv')

const bot = new Telegraf(process.env.BOT_TOKEN)

// TLS options
const tlsOptions = {
  key: fs.readFileSync('server-key.pem'),
  cert: fs.readFileSync('server-cert.pem'),
  ca: [
    // This is necessary only if the client uses a self-signed certificate.
    fs.readFileSync('client-cert.pem')
  ]
}

// Set telegram webhook
// The second argument is necessary only if the client uses a self-signed 
// certificate. Including it for a verified certificate may cause things to break.
bot.telegram.setWebhook('https://server.tld:8443/secret-path', {
  source: 'server-cert.pem'
})

// Start https webhook
bot.startWebhook('/secret-path', tlsOptions, 8443)

// Http webhook, for nginx/heroku users.
bot.startWebhook('/secret-path', null, 5000)

Use webhookCallback() if you want to attach Telegraf to an existing http server.

require('http')
  .createServer(bot.webhookCallback('/secret-path'))
  .listen(3000)

require('https')
  .createServer(tlsOptions, bot.webhookCallback('/secret-path'))
  .listen(8443)

Express.js example integration

const { Telegraf } = require('telegraf')
const express = require('express')
const expressApp = express()

const bot = new Telegraf(process.env.BOT_TOKEN)
expressApp.use(bot.webhookCallback('/secret-path'))
bot.telegram.setWebhook('https://server.tld:8443/secret-path')

expressApp.get('/', (req, res) => {
  res.send('Hello World!')
})

expressApp.listen(3000, () => {
  console.log('Example app listening on port 3000!')
})

Fastify example integration

const { Telegraf } = require('telegraf')
const fastifyApp = require('fastify')()

const bot = new Telegraf(process.env.BOT_TOKEN)

bot.on('text', ({ reply }) => reply('Hello'))
fastifyApp.use(bot.webhookCallback('/secret-path'))
// Set telegram webhook
// npm install -g localtunnel && lt --port 3000
bot.telegram.setWebhook('https://------.localtunnel.me/secret-path')

fastifyApp.listen(3000, () => {
  console.log('Example app listening on port 3000!')
})

Koa.js example integration

const { Telegraf } = require('telegraf')
const Koa = require('koa')
const koaBody = require('koa-body')

const bot = new Telegraf(process.env.BOT_TOKEN)
bot.telegram.setWebhook('https://server.tld:8443/secret-path')

const app = new Koa()
app.use(koaBody())
app.use(async (ctx, next) => {
  if (ctx.method !== 'POST' || ctx.url !== '/secret-path') {
    return next()
  }
  await bot.handleUpdate(ctx.request.body, ctx.response)
  ctx.status = 200
})
app.use(async (ctx) => {
  ctx.body = 'Hello World'
})

app.listen(3000)

Working with files

Supported file sources:

  • Existing file_id
  • File path
  • Url
  • Buffer
  • ReadStream

Also, you can provide an optional name of a file as filename when you send the file.

bot.on('message', (ctx) => {
  // resend existing file by file_id
  ctx.replyWithSticker('123123jkbhj6b')

  // send file
  ctx.replyWithVideo({ source: '/path/to/video.mp4' })

  // send stream
  ctx.replyWithVideo({
    source: fs.createReadStream('/path/to/video.mp4')
  })

  // send buffer
  ctx.replyWithVoice({
    source: Buffer.alloc()
  })

  // send url via Telegram server
  ctx.replyWithPhoto('https://picsum.photos/200/300/')

  // pipe url content
  ctx.replyWithPhoto({
    url: 'https://picsum.photos/200/300/?random',
    filename: 'kitten.jpg'
  })
})

Telegram Passport

To enable Telegram Passport support you can use telegram-passport package:

const { Telegraf } = require('telegraf')
const TelegramPassport = require('telegram-passport')

const bot = new Telegraf(process.env.BOT_TOKEN)
const passport = new TelegramPassport("PRIVATE_KEY_IN_PEM_FORMAT")

bot.on('passport_data', (ctx) => {
  const decryptedPasswordData = passport.decrypt(ctx.passportData)
  console.log(decryptedPasswordData)
  return ctx.setPassportDataErrors([
    { source: 'selfie', type: 'driver_license', file_hash: 'file-hash', message: 'Selfie photo is too low quality'}
  ])
})

Telegraf Modules

Telegraf Modules is higher level abstraction for writing modular Telegram bots.

A module is simply a .js file that exports Telegraf middleware:

module.exports = (ctx) => ctx.reply('Hello from Telegraf Module!')
const Composer = require('telegraf/composer')

module.exports = Composer.mount(
  'sticker', 
  (ctx) => ctx.reply('Wow, sticker')
)

To run modules, you can use telegraf module runner, it allows you to start Telegraf module easily from the command line.

npm install telegraf -g

Telegraf CLI usage

telegraf [opts] <bot-file>
  -t  Bot token [$BOT_TOKEN]
  -d  Webhook domain
  -H  Webhook host [0.0.0.0]
  -p  Webhook port [$PORT or 3000]
  -s  Stop on error
  -l  Enable logs
  -h  Show this help message
Telegraf Module example

Create module with name bot.js and following content:

const Composer = require('telegraf/composer')
const PhotoURL = 'https://picsum.photos/200/300/?random'

const bot = new Composer()
bot.start((ctx) => ctx.reply('Hello there!'))
bot.help((ctx) => ctx.reply('Help message'))
bot.command('photo', (ctx) => ctx.replyWithPhoto({ url: PhotoURL }))

module.exports = bot

then run it:

telegraf -t "bot token" bot.js

Usage with TypeScript

Telegraf is written in TypeScript and therefore ships with declaration files for the entire library. Moreover, it includes types for the complete Telegram API via the typegram package. While most types of Telegraf's API surface are self-explanatory, there's some notable things to keep in mind.

Custom Context Type and Middleware

Recap from the above section about Middleware that ctx is the context object that holds information about the incoming update, as well as a number of convenience functions such as ctx.reply.

The exact shape of ctx can vary based on the installed middleware. Some custom middleware might register properties on the context object that Telegraf is not aware of. Consequently, you can change the type of ctx to fit your needs in order for you to have proper TypeScript types for your data. This is done through Generics:

import { Context, Telegraf } from "telegraf";

// Define your own context type
interface MyContext extends Context {
  myProp?: string
  myOtherProp?: number
}

// Create your bot and tell it about your context type
const bot = new Telegraf<MyContext>('SECRET TOKEN')

// Register middleware and launch your bot as usual
bot.use((ctx, next) => {
  // Yay, `myProp` is now available here as `string | undefined`!
  ctx.myProp = ctx.chat?.first_name?.toUpperCase()
  return next()
})
// ...
Session Middleware

If you are using session middleware, you need to define your session property on your custom context object. This could look like this:

import { Context, Telegraf } from 'telegraf'
import session from 'telegraf/session'

interface SessionData {
  lastMessageId?: number
  photoCount?: number
  // ... more session data go here
}

// Define your own context type
interface MyContext extends Context {
  session: SessionData
  // ... more props go here
}

// Create your bot and tell it about your context type
const bot = new Telegraf<MyContext>('SECRET TOKEN')

// Make session data available
bot.use(session())
// Register middleware and launch your bot as usual
bot.use((ctx, next) => {
  // Yay, `session` is now available here as `SessionData`!
  if (ctx.message !== undefined)
    ctx.session.lastMessageId = ctx.message.message_id
  return next()
})
bot.on('photo', (ctx, next) => {
  ctx.session.photoCount = 1 + (ctx.session.photoCount ?? 0)
  return next()
})
// ...

API reference

Telegraf

Telegraf API reference

const { Telegraf } = require('telegraf')
Constructor

Initialize new Telegraf bot.

const telegraf = new Telegraf(token, [options])

Param Type Description
token string Bot Token
[options] object Telegraf options

Telegraf options:

{
  telegram: {           // Telegram options
    agent: null,        // https.Agent instance, allows custom proxy, certificate, keep alive, etc.
    webhookReply: true  // Reply via webhook
  },
  username: ''          // Bot username (optional)
  channelMode: false    // Handle `channel_post` updates as messages (optional)
}
token

Use this property to get/set bot token.

telegraf.token = [string]

webhookReply

Use this property to control reply via webhook feature.

telegraf.webhookReply = [bool]

use

Registers a middleware.

telegraf.use(...middleware)

Param Type Description
middleware function Middleware function
on

Registers middleware for provided update type.

telegraf.on(updateTypes, ...middleware)

Param Type Description
updateTypes string/string[] Update type
middleware function Middleware
hears

Registers middleware for handling text messages.

telegraf.hears(triggers, ...middleware)

Param Type Description
triggers string/string[]/RegEx/RegEx[]/Function Triggers
middleware function Middleware
command

Command handling.

telegraf.command(commands, ...middleware)

Param Type Description
commands string/string[] Commands
middleware function Middleware
start

Handler for /start command.

telegraf.start(...middleware)

Param Type Description
middleware function Middleware
help

Handler for /help command.

telegraf.help(...middleware)

Param Type Description
middleware function Middleware
settings

Handler for /settings command.

telegraf.settings(...middleware)

Param Type Description
middleware function Middleware
entity

Entity handling.

telegraf.entity(entity, ...middleware)

Param Type Description
entity string/string[]/RegEx/RegEx[]/Function Entity name
middleware function Middleware
mention

Mention handling.

telegraf.mention(username, ...middleware)

Param Type Description
username string/string[] Username
middleware function Middleware
phone

Phone number handling.

telegraf.phone(number, ...middleware)

Param Type Description
number string/string[] Phone number
middleware function Middleware
hashtag

Hashtag handling.

telegraf.hashtag(hashtag, ...middleware)

Param Type Description
hashtag string/string[] Hashtag
middleware function Middleware
cashtag

Cashtag handling.

telegraf.cashtag(cashtag, ...middleware)

Param Type Description
cashtag string/string[] Cashtag
middleware function Middleware
action

Registers middleware for handling callback_data actions with regular expressions.

telegraf.action(triggers, ...middleware)

Param Type Description
triggers string/string[]/RegEx/RegEx[] Triggers
middleware function Middleware
inlineQuery

Registers middleware for handling inline_query actions with regular expressions.

telegraf.inlineQuery(triggers, ...middleware)

Param Type Description
triggers string/string[]/RegEx/RegEx[] Triggers
middleware function Middleware
gameQuery

Registers middleware for handling callback_data actions with game query.

telegraf.gameQuery(...middleware)

Param Type Description
middleware function Middleware
launch

Launch bot in long-polling or webhook mode.

telegraf.launch(options) => Promise

Param Type Default Description
[options] object Launch options

Launch options:

{
  // Start bot in polling mode (Default)
  // See startPolling reference
  polling: { timeout, limit,  allowedUpdates,  stopCallback },

  // Start bot in webhook mode
  // See startWebhook reference
  webhook: { domain, hookPath,  port,  host,  tlsOptions,  cb } 
}
startPolling

Start poll updates.

telegraf.startPolling([timeout], [limit], [allowedUpdates], [stopCallback])

Param Type Default Description
[timeout] number 30 Poll timeout in seconds
[limit] number 100 Limits the number of updates to be retrieved
[allowedUpdates] string[]/string/null null List the types of updates you want your bot to receive
[stopCallback] function null Polling stop callback
startWebhook

Start listening @ https://host:port/webhookPath for Telegram calls.

telegraf.startWebhook(hookPath, [tlsOptions], port, [host])

Param Type Description
hookPath string Webhook url path (see Telegraf.setWebhook)
[tlsOptions] object TLS server options. Pass null to use http
port number Port number
[host] string Hostname
stop

Stop Webhook and polling

telegraf.stop([callback]) => Promise

Param Type
[callback] function
webhookCallback

Return a callback function suitable for the http[s].createServer() method to handle a request. You may also use this callback function to mount your telegraf app in a Connect/Express app.

telegraf.webhookCallback(webhookPath) => Function

Param Type Description
webhookPath string Webhook url path (see Telegraf.setWebhook)
handleUpdate

Handle raw Telegram update. In case you use centralized webhook server, queue, etc.

telegraf.handleUpdate(rawUpdate, [webhookResponse])

Param Type Description
rawUpdate object Telegram update payload
[webhookResponse] object http.ServerResponse
Telegraf.compose

Compose middlewares returning a fully valid middleware comprised of all those which are passed.

Telegraf.compose(middlewares) => function

Param Type Description
middlewares function[] Array of middlewares
Telegraf.mount

Generates middleware for handling provided update types.

Telegraf.mount(updateTypes, ...middleware) => function

Param Type Description
updateTypes string/string[] Update type
middleware function middleware
Telegraf.hears

Generates middleware for handling text messages with regular expressions.

Telegraf.hears(triggers, ...middleware) => function

Param Type Description
triggers string/string[]/RegEx/RegEx[]/Function/Function[] Triggers
handler function Handler
Telegraf.action

Generates middleware for handling callbackQuery data with regular expressions.

Telegraf.action(triggers, ...middleware) => function

Param Type Description
triggers string/string[]/RegEx/RegEx[]/Function/Function[] Triggers
handler function Handler
Telegraf.inlineQuery

Generates middleware for handling inlineQuery data with regular expressions.

Telegraf.inlineQuery(triggers, ...middleware) => function

Param Type Description
triggers string/string[]/RegEx/RegEx[]/Function/Function[] Triggers
handler function Handler
Telegraf.passThru

Generates pass thru middleware.

Telegraf.passThru() => function

Telegraf.optional

Generates optional middleware.

Telegraf.optional(test, ...middleware) => function

Param Type Description
test truthy/function Value or predicate (ctx) => bool
middleware function middleware
Telegraf.acl

Generates middleware for provided users only.

Telegraf.acl(userId, ...middleware) => function

Param Type Description
userId string/string[] User id
middleware function middleware
Telegraf.drop

Generates drop middleware.

Telegraf.drop(test) => function

Param Type Description
test truthy/function Value or predicate (ctx) => bool
Telegraf.filter

Generates filter middleware.

Telegraf.filter(test) => function

Param Type Description
test truthy/function Value or predicate (ctx) => bool
Telegraf.branch

Generates branch middleware.

Telegraf.branch(test, trueMiddleware, falseMiddleware) => function

Param Type Description
test truthy/function Value or predicate (ctx) => bool
trueMiddleware function true action middleware
falseMiddleware function false action middleware
Telegraf.email

Generates middleware for handling messages with email entity.

Telegraf.email(triggers, ...middleware) => function

Param Type Description
triggers string/string[]/RegEx/RegEx[]/Function/Function[] Triggers
handler function Handler
Telegraf.hashtag

Generates middleware for handling messages with hashtag entity.

Telegraf.hashtag(triggers, ...middleware) => function

Param Type Description
triggers string/string[]/RegEx/RegEx[]/Function/Function[] Triggers
handler function Handler
Telegraf.cashtag

Generates middleware for handling messages with cashtag entity.

Telegraf.cashtag(triggers, ...middleware) => function

Param Type Description
triggers string/string[]/RegEx/RegEx[]/Function/Function[] Triggers
handler function Handler
Telegraf.url

Generates middleware for handling messages with url entity.

Telegraf.url(triggers, ...middleware) => function

Param Type Description
triggers string/string[]/RegEx/RegEx[]/Function/Function[] Triggers
handler function Handler
Telegraf.phone

Generates middleware for handling messages with phone entity.

Telegraf.phone(triggers, ...middleware) => function

Param Type Description
triggers string/string[]/RegEx/RegEx[]/Function/Function[] Triggers
handler function Handler
Telegraf.textLink

Generates middleware for handling messages with text_link entity.

Telegraf.textLink(triggers, ...middleware) => function

Param Type Description
triggers string/string[]/RegEx/RegEx[]/Function/Function[] Triggers
handler function Handler
Telegraf.textMention

Generates middleware for handling messages with text_mention entity.

Telegraf.textMention(triggers, ...middleware) => function

Param Type Description
triggers string/string[]/RegEx/RegEx[]/Function/Function[] Triggers
handler function Handler

Telegram

Telegram client API reference.

const Telegram = require('telegraf/telegram')
Constructor

Initialize new Telegram client.

const telegram = new Telegram(token, [options])

Param Type Description
token string Bot Token
[options] object Telegram options

Telegram options:

{
  agent: null,        // https.Agent instance, allows custom proxy, certificate, keep alive, etc.
  webhookReply: true  // Reply via webhook
}
webhookReply

Use this property to control reply via webhook feature.

telegram.webhookReply = [bool]

addStickerToSet

Use this method to add a new sticker to a set created by the bot.

telegram.addStickerToSet(ownerId, name, stickerData) => Promise Official documentation

Param Type Description
ownerId string User identifier of sticker set owner
name string Sticker set name
stickerData Object Sticker data({png_sticker: 'stiker file', emojis: '😉', mask__position: '' })
answerCbQuery

Use this method to send answers to callback queries.

telegram.answerCbQuery(callbackQueryId, text, [showAlert], [extra]) => Promise Official documentation

Param Type Description
callbackQueryId string Query id
[text] string Notification text
[showAlert] bool Show alert instead of notification
[extra] object Extra parameters
answerGameQuery

Use this method to send answers to game query.

telegram.answerGameQuery(callbackQueryId, url) => Promise

Param Type Description
callbackQueryId string Query id
url string Notification text
answerShippingQuery

Use this method to send answers to shipping query.

telegram.answerShippingQuery(shippingQueryId, ok, shippingOptions, [errorMessage]) => Promise

Param Type Description
shippingQueryId string Shipping Query id
ok bool Specify True if delivery to the specified address is possible
shippingOptions object Shipping Options
[errorMessage] string Error message in human readable form
answerPreCheckoutQuery

Use this method to send answers to shipping query.

telegram.answerPreCheckoutQuery(preCheckoutQueryId, ok, [errorMessage]) => Promise

Param Type Description
preCheckoutQueryId string Shipping Query id
ok bool Specify True if everything is alright (goods are available, etc.)
[errorMessage] string Error message in human readable form
answerInlineQuery

Use this method to send answers to an inline query.

telegram.answerInlineQuery(inlineQueryId, results, [extra]) => Promise

Param Type Description
inlineQueryId string Query id
results object[] Results
[extra] object Extra parameters
createNewStickerSet

Use this method to create new sticker set owned by a user.

telegram.createNewStickerSet(ownerId, name, title, stickerData, [isMasks]) => Promise Official documentation

Param Type Description
ownerId string User identifier of sticker set owner
name string Sticker set name
title string Sticker set title
stickerData object Sticker data({png_sticker: 'stiker file', emojis: '😉', mask__position: '' })
[isMasks] bool Pass True, if a set of mask stickers should be created
deleteChatStickerSet

Use this method to delete a group sticker set from a supergroup.

telegram.deleteChatStickerSet(chatId) => Promise Official documentation

Param Type Description
chatId number/string Chat id
deleteMessage

Use this method to delete bot messages.

telegram.deleteMessage(chatId, messageId) => Promise Official documentation

Param Type Description
chatId number/string Chat id
messageId string Message id
setStickerSetThumb

Use this method to set the thumbnail of a sticker set.

telegram.setStickerSetThumb(name, userId, [thumb]) => Promise Official documentation

Param Type Description
name string Sticker set name
userId string User identifier of the sticker set owner
thumb File A PNG image with the thumbnail, must be up to 128 kilobytes in size and have width and height exactly 100px, or a TGS animation with the thumbnail up to 32 kilobytes in size
deleteStickerFromSet

Use this method to delete a sticker from a set created by the bot.

telegram.deleteStickerFromSet(stickerId) => Promise Official documentation

Param Type Description
stickerId string File identifier of the sticker
editMessageCaption

Use this method to edit captions of messages sent by the bot or via the bot.

telegram.editMessageCaption(chatId, messageId, inlineMessageId, caption, [extra]) => Promise

Param Type Description
chatId number/string Chat id
messageId string Message id
inlineMessageId string Inline message id
caption string Caption
[extra] object Extra parameters
editMessageMedia

Use this method to edit media of messages sent by the bot or via the bot.

telegram.editMessageMedia(chatId, messageId, inlineMessageId, media, [extra]) => Promise

Param Type Description
chatId number/string Chat id
messageId string Message id
inlineMessageId string Inline message id
media InputMedia InputMedia
[extra] object Extra parameters
editMessageLiveLocation

Use this method to edit live location messages sent by the bot or via the bot.

telegram.editMessageLiveLocation(latitude, longitude, chatId, messageId, inlineMessageId, [markup]) => Promise Official documentation

Param Type Description
latitude string Latitude of new location
longitude string Longitude of new location
chatId number/string Chat id
messageId string Message id
inlineMessageId string Inline message id
[markup] object Keyboard markup
editMessageReplyMarkup

Use this method to edit only the reply markup of messages sent by the bot or via the bot.

telegram.editMessageReplyMarkup(chatId, messageId, inlineMessageId, markup, [extra]) => Promise

Param Type Description
chatId number/string Chat id
messageId string Message id
inlineMessageId string Inline message id
markup object Keyboard markup
[extra] object Extra parameters
editMessageText

Use this method to edit text messages sent by the bot or via the bot.

telegram.editMessageText(chatId, messageId, inlineMessageId, text, [extra]) => Promise

Param Type Description
chatId number/string Chat id
messageId string Message id
inlineMessageId string Inline message id
text string Message
[extra] object Extra parameters
forwardMessage

Forwards message.

telegram.forwardMessage(chatId, fromChatId, messageId, [extra]) => Promise

Param Type Description
chatId number/string Target Chat id
fromChatId number/string Source Chat id
messageId number Message id
[extra] object Extra parameters
sendCopy

Sends message copy.

telegram.sendCopy(chatId, message, [extra]) => Promise

Param Type Description
chatId number/string Target Chat id
message object Message
[extra] object Extra parameters
getWebhookInfo

Use this method to get current webhook status. Requires no parameters. On success, returns a WebhookInfo object. If the bot is using getUpdates, will return an object with the url field empty.

telegram.getWebhookInfo() => Promise

getChat

Use this method to get up to date information about the chat (current name of the user for one-on-one conversatio ns, current username of a user, group or channel, etc.).

telegram.getChat(chatId) => Promise Official documentation

Param Type Description
chatId number/string Chat id
getChatAdministrators

Use this method to get a list of administrators in a chat. On success, returns an Array of ChatMember objects that contains information about all chat administrators except other bots. If the chat is a group or a supergroup and no administrators were appointed, only the creator will be returned.

telegram.getChatAdministrators(chatId) => Promise Official documentation

Param Type Description
chatId number/string Chat id
setGameScore

Use this method to set the score of the specified user in a game. On success, if the message was sent by the bot, returns the edited Message, otherwise returns True. Returns an error, if the new score is not greater than the user's current score in the chat.

telegram.setGameScore(userId, score, inlineMessageId, chatId, messageId, [editMessage], [force]) => Promise Official documentation

Param Type Description
userId number Target User id
score number Target User id
inlineMessageId string Inline message id
chatId number/string Target Chat id
messageId number/string Message id
[editMessage] boolean edit target message, default value is True
[force] boolean Pass True, if the high score is allowed to decrease. This can be useful when fixing mistakes or banning cheaters
getGameHighScores

Use this method to get data for high score tables. Will return the score of the specified user and several of his neighbors in a game. On success, returns an Array of GameHighScore objects.

telegram.getGameHighScores(userId, inlineMessageId, chatId, messageId) => Promise Official documentation

Param Type Description
userId number\ Target User id
inlineMessageId string Inline message id
chatId number/string Target Chat id
messageId number/string Message id
getChatMember

Use this method to get information about a member of a chat.

telegram.getChatMember(chatId, userId) => Promise Official documentation

Param Type Description
chatId number/string Chat id
userId number User identifier
getChatMembersCount

Use this method to get the number of members in a chat.

telegram.getChatMembersCount(chatId) => Promise Official documentation

Param Type Description
chatId number/string Chat id
getFile

Returns basic info about a file and prepare it for downloading.

telegram.getFile(fileId) => Promise Official documentation

Param Type Description
fileId string File id
getFileLink

Returns link to file.

telegram.getFileLink(fileId) => Promise

Param Type Description
fileId string/object File id or file object
getMe

Returns basic information about the bot.

telegram.getMe() => Promise Official documentation

getMyCommands

Use this method to get the current list of the bot's commands. Requires no parameters. Returns Array of BotCommand on success.

telegram.getMyCommands() => Promise Official documentation

getStickerSet

Use this method to get a sticker set.

telegram.getStickerSet(name) => Promise

Param Type Description
name string Short name of the sticker set
Official documentation
getUserProfilePhotos

Returns profiles photos for provided user.

telegram.getUserProfilePhotos(userId, [offset], [limit]) => Promise Official documentation

Param Type Description
userId number Chat id
[offset] number Offset
[limit] number Limit
setChatPermissions

Use this method to set default chat permissions for all members.

telegram.setChatPermissions(chatId, permissions) => Promise

Param Type Description
chatId number/string Chat id
permissions object New default chat permissions
kickChatMember

Use this method to kick a user from a group or a supergroup.

telegram.kickChatMember(chatId, userId, [extra]) => Promise

Param Type Description
chatId number/string Chat id
userId number User id
[extra] object Extra parameters
restrictChatMember

Use this method to restrict a user in a supergroup.

telegram.restrictChatMember(chatId, userId, [extra]) => Promise

Param Type Description
chatId number/string Chat id
userId number User id
[extra] object Extra parameters
promoteChatMember

Use this method to promote or demote a user in a supergroup or a channel.

telegram.promoteChatMember(chatId, userId, [extra]) => Promise

Param Type Description
chatId number/string Chat id
userId number User id
[extra] object Extra parameters
setChatAdministratorCustomTitle

New custom title for the administrator; 0-16 characters, emoji are not allowed

telegram.setChatAdministratorCustomTitle(chatId, userId, [extra]) => Promise

Param Type Description
chatId number/string Chat id
userId number User id
title string Custom title
exportChatInviteLink

Use this method to export an invite link to a supergroup or a channel.

telegram.exportChatInviteLink(chatId) => Promise Official documentation

Param Type Description
chatId number/string Chat id
setChatPhoto

Use this method to set a new profile photo for the chat.

telegram.setChatPhoto(chatId, photo) => Promise Official documentation

Param Type Description
chatId number/string Chat id
photo File New chat photo
deleteChatPhoto

Use this method to delete a chat photo.

telegram.deleteChatPhoto(chatId) => Promise Official documentation

Param Type Description
chatId number/string Chat id
setChatTitle

Use this method to change the title of a chat.

telegram.setChatTitle(chatId, title) => Promise Official documentation

Param Type Description
chatId number/string Chat id
title string New chat title, 1-255 characters
setChatDescription

Use this method to change the description of a supergroup or a channel.

telegram.setChatDescription(chatId, description) => Promise Official documentation

Param Type Description
chatId number/string Chat id
description string New chat description, 0-255 characters
setChatStickerSet

Use this method to set a new group sticker set for a supergroup.

telegram.setChatStickerSet(chatId, stickerSetName) => Promise Official documentation

Param Type Description
chatId number/string Chat id
stickerSetName string Name of the sticker set
pinChatMessage

Use this method to pin a message in a supergroup.

telegram.pinChatMessage(chatId, messageId, [extra]) => Promise

Param Type Description
chatId number/string Chat id
messageId number Message id
[extra] object Extra parameters
unpinChatMessage

Use this method to unpin a message in a supergroup chat.

telegram.unpinChatMessage(chatId) => Promise Official documentation

Param Type Description
chatId number/string Chat id
leaveChat

Use this method for your bot to leave a group, supergroup or channel.

telegram.leaveChat(chatId) => Promise Official documentation

Param Type Description
chatId number/string Chat id
deleteWebhook

Removes webhook integration.

telegram.deleteWebhook() => Promise Official documentation

sendAudio

Sends audio.

telegram.sendAudio(chatId, audio, [extra]) => Promise

Param Type Description
chatId number/string Chat id
audio File Document
[extra] object Extra parameters
sendGame

Sends game.

telegram.sendGame(chatId, gameName, [extra]) => Promise

Param Type Description
chatId number/string Chat id
gameName String Game short name
[extra] object Extra parameters
sendChatAction

Sends chat action.

telegram.sendChatAction(chatId, action) => Promise

Param Type Description
chatId number/string Chat id
action string Chat action
sendContact

Sends document.

telegram.sendContact(chatId, phoneNumber, firstName, [extra]) => Promise

Param Type Description
chatId number/string Chat id
phoneNumber string Contact phone number
firstName string Contact first name
[extra] object Extra parameters
sendDice

Sends dice.

telegram.sendDice(chatId, [extra]) => Promise

Param Type Description
chatId number/string Chat id
[extra] object Extra parameters
sendDocument

Sends document.

telegram.sendDocument(chatId, doc, [extra]) => Promise

Param Type Description
chatId number/string Chat id
doc File Document
[extra] object Extra parameters
sendLocation

Sends location.

telegram.sendLocation(chatId, latitude, longitude, [extra]) => Promise

Param Type Description
chatId number/string Chat id
latitude number Latitude
longitude number Longitude
[extra] object Extra parameters
sendMessage

Sends text message.

telegram.sendMessage(chatId, text, [extra]) => Promise

Param Type Description
chatId number/string Chat id
text string Message
[extra] object Extra parameters
sendPhoto

Sends photo.

telegram.sendPhoto(chatId, photo, [extra]) => Promise

Param Type Description
chatId number/string Chat id
photo File Photo
[extra] object Extra parameters
sendMediaGroup

Sends media album.

telegram.sendMediaGroup(chatId, media, [extra]) => Promise

Param Type Description
chatId number/string Chat id
media InputMedia[] Media array
[extra] object Extra parameters
sendSticker

Sends sticker.

telegram.sendSticker(chatId, sticker, [extra]) => Promise

Param Type Description
chatId number/string Chat id
sticker File Document
[extra] object Extra parameters
setStickerPositionInSet

Use this method to move a sticker in a set created by the bot to a specific position.

telegram.setStickerPositionInSet(sticker, position) => Promise

Param Type Description
sticker string File identifier of the sticker
position number New sticker position in the set, zero-based
sendVenue

Sends venue information.

telegram.sendVenue(chatId, latitude, longitude, title, address, [extra]) => Promise

Param Type Description
chatId number/string Chat id
latitude number Latitude
longitude number Longitude
title string Venue title
address string Venue address
[extra] object Extra parameters
sendInvoice

Sends invoice.

telegram.sendInvoice(chatId, invoice) => Promise

Param Type Description
chatId number/string Chat id
invoice object Invoice object
sendVideo

Sends video.

telegram.sendVideo(chatId, video, [extra]) => Promise

Param Type Description
chatId number/string Chat id
video File Document
[extra] object Extra parameters
sendAnimation

Sends video.

telegram.sendAnimation(chatId, animation, [extra]) => Promise

Param Type Description
chatId number/string Chat id
animation File Document
[extra] object Extra parameters
sendVideoNote

Sends round video.

telegram.sendVideoNote(chatId, video, [extra]) => Promise

Param Type Description
chatId number/string Chat id
video File Video note file
[extra] object Extra parameters
sendVoice

Sends voice.

telegram.sendVoice(chatId, voice, [extra]) => Promise

Param Type Description
chatId number/string Chat id
voice File/string File, file id or HTTP URL
[extra] object Extra parameters
sendPoll

Sends anonymous poll.

telegram.sendPoll(chatId, question, options, [extra]) => Promise

Param Type Description
chatId number/string Chat id
question string Poll question
options string[] Answer options
[extra] object Extra parameters
setMyCommands

Use this method to change the list of the bot's commands

telegram.setMyCommands(commands) => Promise

Param Type Description
commands object[] List of bot commands
sendQuiz

Sends quiz.

telegram.sendQuiz(chatId, question, options, [extra]) => Promise

Param Type Description
chatId number/string Chat id
question string Poll question
options string[] Answer options
[extra] object Extra parameters
stopPoll

Stops anonymous poll.

telegram.stopPoll(chatId, messageId, [extra]) => Promise

Param Type Description
chatId number/string Chat id
messageId string Poll message id
options string[] Answer options
[extra] object Extra parameters
stopMessageLiveLocation

Use this method to stop updating a live location message sent by the bot or via the bot (for inline bots) before live_period expires.

telegram.stopMessageLiveLocation(chatId, messageId, inlineMessageId, [markup]) => Promise Official documentation

Param Type Description
chatId number/string Chat id
messageId string Message id
inlineMessageId string Inline message id
[markup] object Keyboard markup
uploadStickerFile

Use this method to upload a .png file with a sticker for later use in createNewStickerSet and addStickerToSet methods.

telegram.uploadStickerFile(ownerId, stickerFile) => Promise Official documentation

Param Type Description
ownerId string User identifier of sticker file owner
stickerFile File Png image with the sticker
setWebhook

Specifies an url to receive incoming updates via an outgoing webhook.

telegram.setWebhook(url, [cert], [maxConnections], [allowedUpdates]) => Promise Official documentation

Param Type Description
url string Public url for webhook
[cert] File SSL public certificate
[maxConnections] number Maximum allowed number of simultaneous HTTPS connections to the webhook
[allowedUpdates] string[] List the types of updates you want your bot to receive
unbanChatMember

Use this method to unban a previously kicked user in a supergroup.

telegram.unbanChatMember(chatId, userId) => Promise Official documentation

Param Type Description
chatId number/string Chat id
userId number User id
setPassportDataErrors

Informs a user that some of the Telegram Passport elements they provided contains errors. The user will not be able to re-submit their Passport to you until the errors are fixed (the contents of the field for which you returned the error must change).

telegram.setPassportDataErrors(errors) => Promise Official documentation

Param Type Description
[errors] PassportElementError[] An array describing the errors

Extra

Telegram message options helper, see examples.

Markup

Telegram markup helper, see examples.

Stage

Simple scene-based control flow middleware.

const { Telegraf } = require('telegraf')
const session = require('telegraf/session')
const Stage = require('telegraf/stage')
const Scene = require('telegraf/scenes/base')
const { leave } = Stage

// Greeter scene
const greeter = new Scene('greeter')
greeter.enter((ctx) => ctx.reply('Hi'))
greeter.leave((ctx) => ctx.reply('Bye'))
greeter.hears(/hi/gi, leave())
greeter.on('message', (ctx) => ctx.reply('Send `hi`'))

// Create scene manager
const stage = new Stage()
stage.command('cancel', leave())

// Scene registration
stage.register(greeter)

const bot = new Telegraf(process.env.BOT_TOKEN)
bot.use(session())
bot.use(stage.middleware())
bot.command('greeter', (ctx) => ctx.scene.enter('greeter'))
bot.startPolling()

Scenes related context props and functions:

bot.on('message', (ctx) => {
  ctx.scene.state                                    // Current scene state (persistent)
  ctx.scene.enter(sceneId, [defaultState, silent])   // Enter scene
  ctx.scene.reenter()                                // Reenter current scene
  ctx.scene.leave()                                  // Leave scene
})