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Build and run Telegram bots in Node.js using Telegraf with practical command patterns.
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Baseado na classificação ocupacional SOC
| name | using-telegram-bot |
| description | Build and run Telegram bots in Node.js using Telegraf with practical command patterns. |
Short guide to build Telegram bots with telegraf (Node.js).
npm install telegrafBOT_TOKEN.// bot.js
const { Telegraf, Markup } = require('telegraf');
const bot = new Telegraf(process.env.BOT_TOKEN);
bot.start(ctx => ctx.reply('Welcome! I can help with commands.'));
bot.command('echo', ctx => {
const text = ctx.message.text.split(' ').slice(1).join(' ');
ctx.reply(text || 'usage: /echo your message');
});
bot.on('text', ctx => ctx.reply(`You said: ${ctx.message.text}`));
bot.launch();
process.once('SIGINT', () => bot.stop('SIGINT'));
process.once('SIGTERM', () => bot.stop('SIGTERM'));
Run:
BOT_TOKEN=123:ABC node bot.js
// send photo
await ctx.replyWithPhoto('https://example.com/image.jpg', { caption: 'Nice pic' });
// send document
await ctx.replyWithDocument('https://example.com/file.pdf');
// show inline buttons
await ctx.reply('Choose:', Markup.inlineKeyboard([
Markup.button.callback('OK', 'ok'),
Markup.button.callback('Cancel', 'cancel')
]));
bot.action('ok', ctx => ctx.reply('You pressed OK'));
bot.action('cancel', ctx => ctx.reply('Cancelled'));
const express = require('express');
const { Telegraf } = require('telegraf');
const bot = new Telegraf(process.env.BOT_TOKEN);
const app = express();
app.use(bot.webhookCallback('/telegraf'));
bot.telegram.setWebhook(`${process.env.PUBLIC_URL}/telegraf`);
app.listen(process.env.PORT || 3000);
Use webhooks for production deployments (faster, lower resource use).
bot.catch((err, ctx) => {
console.error('Bot error', err);
});
NODE_ENV=production and graceful shutdown hooks for reliability.This doc shows the most common Telegraf patterns: start/command handlers, text handlers, media, inline buttons, webhook setup, and error handling.
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