How to Build a Telegram Mini App: A Step-by-Step Guide for Developers
How to Build a Telegram Mini App: A Step-by-Step Guide for Developers
Blog Article
Telegram is not only a messaging app — it’s an effective development platform. With the introduction of Telegram Mini Apps, developers are now able to create interactive, web-based experiences directly inside Telegram chats. Whether you're building a shopping cart, booking system, financial dashboard, or even a game, Mini Apps give a seamless and intuitive method to reach users where they already are.
This guide explains how to construct a how to build telegram mini app, from setup to deployment.
???? What Is a Telegram Mini App?
A Telegram Mini App is often a web app (built using HTML, CSS, and JavaScript) that launches inside Telegram via a bot. It runs within Telegram’s interface, offering rich UI, smooth interactions, and optional payment support — all without requiring users to go out of the app or install anything.
???? What Can You Build?
You may use Mini Apps to generate:
???? E-commerce stores
????️ Booking and scheduling apps
???? Dashboards and calculators
???? Mini games
???? Surveys and forms
???? Bill payment tools
✅ Step-by-Step: How to Build a Telegram Mini App
Step 1: Set Up Your Bot
Open Telegram and look for @BotFather
Use the command /start
Create a new bot with /newbot
Give it an identity and a username (must lead to bot)
Copy your API token — you’ll demand it for backend interaction
Step 2: Build Your Web App
Telegram Mini Apps are regular web apps that really must be:
Responsive and mobile-first
Hosted with Hyper Text Transfer Protocol Secure
Written in HTML, CSS, JavaScript
Integrated with Telegram’s Web App API
Here’s a straightforward example:
html
Копировать
Редактировать
copyright src="telegram.org/js/telegram-web-app.js">
Hello from Telegram Mini App!
copyright>
function showUser()
const user = Telegram.WebApp.initDataUnsafe.user;
document.getElementById('user').textContent =
`Hello, $user.first_name ($user.username)`;
Telegram.WebApp.ready(); // Notify Telegram app
Step 3: Host Your Mini App
Use any Hyper Text Transfer Protocol Secure-supported host like Vercel, Netlify, Firebase, or your own server
Your app should be served over Hyper Text Transfer Protocol Secure to be effective inside Telegram
Step 4: Connect Your Mini App on the Bot
Go to @BotFather
Choose your bot → /setdomain
Set the bottom domain of your respective Mini App (e.g., myapp.example.com)
Then set the Web App URL using /setmenubutton or /setcommands
Example bot command:
bash
Копировать
Редактировать
/setcommands
start - Launch the mini app
Inside your bot’s backend, you can use the reply_markup parameter to add a Web App button towards the message.
Example using Python (with python-telegram-bot):
python
Копировать
Редактировать
from telegram import InlineKeyboardButton, InlineKeyboardMarkup, WebAppInfo
keyboard = [
[InlineKeyboardButton("Open App", web_app=WebAppInfo(url="myapp.example.com"))]
]
reply_markup = InlineKeyboardMarkup(keyboard)
bot.send_message(chat_id=chat_id, text="Click to start app", reply_markup=reply_markup)
Step 5: Optional – Add Payment Integration
Use Telegram’s Payments API if you need to:
Sell products
Accept donations
Enable checkout flows
Telegram supports providers like Stripe, Payme, and YooMoney. You must first register a provider with @BotFather using /setpayment.
???? Security Tips
Always validate Telegram’s user identity on your backend using the initData parameter
Use the initDataUnsafe just for non-sensitive actions
Never trust client-side data without verification
Telegram provides init data validation instructions here
✅ Final Notes
Telegram Mini Apps are an exciting method to build modern, interactive services in the Telegram ecosystem. They require no installation, no app store approval, and invite instant access to a massive global audience.
???? Resources
Telegram Web Apps API: core.telegram.org/bots/webapps
Telegram Bot API: core.telegram.org/bots/api
Example Projects: GitHub search for “Telegram Mini App” or “Telegram Web App”
Building a Telegram Mini App is easy, flexible, and powerful. By combining the reach of Telegram bots with custom web interfaces, developers can make everything from simple tools to full-fledged platforms — all within one chat window.
Report this page