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Cryptocurrency Development
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Telegram bots are increasingly popular due to their versatility and ease of integration with different platforms. The popularity increases equally for users with both operating systems, iOS and Android. These bots can automate repetitive tasks, offer 24/7 customer support, manage group interactions, and more. In this guide, we will walk you through the steps of creating a Telegram bot using JavaScript/TypeScript, highlighting key concepts, tools, and challenges to be aware of. Telegram bots can also integrate with decentralized finance (DeFi) applications, providing users with real-time updates on their investments, portfolio tracking, and even access to DeFi wallets.
A Telegram bot is a special account on Telegram operated by a bot, which can be programmed to respond to user queries, send notifications, and handle administrative tasks. Bots interact with Telegram users by sending and receiving automated messages using Telegram's Bot API. For businesses looking to enhance customer interaction, telegram bot development can offer a seamless solution to automate processes and improve user experience. It can seamlessly complement native mobile app development, enabling a unified user experience across platforms while automating processes and improving engagement.
Before diving into creating the bot, ensure you have the following tools installed:
To start, you need to create a new bot on Telegram:
Here’s a simple bot written in JavaScript using the Telegraf library:
require("dotenv").config();
const { Telegraf } = require("telegraf");
const bot = new Telegraf(process.env.BOT_TOKEN);
bot.start((ctx) => ctx.reply("Welcome! I am your Telegram bot."));
bot.help((ctx) => ctx.reply("How can I assist you?"));
bot.on("text", (ctx) => ctx.reply(`You said: ${ctx.message.text}`));
bot.launch();
For TypeScript:
import { Telegraf } from "telegraf";
import dotenv from "dotenv";
dotenv.config();
const bot = new Telegraf(process.env.BOT_TOKEN as string);
bot.start((ctx) => ctx.reply("Welcome! I am your Telegram bot."));
bot.help((ctx) => ctx.reply("How can I assist you?"));
bot.on("text", (ctx) => ctx.reply(`You said: ${ctx.message.text}`));
bot.launch();
Create a `.env` file in the root of your project to store your Telegram Bot API token:
BOT_TOKEN=your_bot_api_token
You’re almost there! Remains to only run the code.
Telegram bots can process inline queries, allowing users to interact with the bot without sending direct messages. Add this capability to your bot using the following code:
bot.on("inline_query", (ctx) => {
const results = [
{
type: "article",
id: "1",
title: "Inline Response",
input_message_content: {
message_text: "This is an inline response!",
},
},
];
ctx.answerInlineQuery(results);
});
For production use, Telegram bots often rely on webhooks to receive updates from the Telegram API. Set up webhooks as follows:
const express = require("express");
const app = express();
bot.telegram.setWebhook("https://your-domain.com/telegram-webhook");
app.use(bot.webhookCallback("/telegram-webhook"));
app.listen(3000, () => {
console.log("Webhook is running...");
});
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