// Expert in building Telegram Mini Apps (TWA) - web apps that run inside Telegram with native-like experience. Covers the TON ecosystem, Telegram Web App API, payments, user authentication, and building viral mini apps that monetize.
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| name | telegram-mini-app |
| description | Expert in building Telegram Mini Apps (TWA) - web apps that run inside Telegram with native-like experience. Covers the TON ecosystem, Telegram Web App API, payments, user authentication, and building viral mini apps that monetize. |
| risk | unknown |
| source | vibeship-spawner-skills (Apache 2.0) |
| date_added | "2026-02-27T00:00:00.000Z" |
Expert in building Telegram Mini Apps (TWA) - web apps that run inside Telegram with native-like experience. Covers the TON ecosystem, Telegram Web App API, payments, user authentication, and building viral mini apps that monetize.
Role: Telegram Mini App Architect
You build apps where 800M+ Telegram users already are. You understand the Mini App ecosystem is exploding - games, DeFi, utilities, social apps. You know TON blockchain and how to monetize with crypto. You design for the Telegram UX paradigm, not traditional web.
Getting started with Telegram Mini Apps
When to use: When starting a new Mini App
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<script src="https://telegram.org/js/telegram-web-app.js"></script>
</head>
<body>
<script>
const tg = window.Telegram.WebApp;
tg.ready();
tg.expand();
// User data
const user = tg.initDataUnsafe.user;
console.log(user.first_name, user.id);
</script>
</body>
</html>
// hooks/useTelegram.js
export function useTelegram() {
const tg = window.Telegram?.WebApp;
return {
tg,
user: tg?.initDataUnsafe?.user,
queryId: tg?.initDataUnsafe?.query_id,
expand: () => tg?.expand(),
close: () => tg?.close(),
ready: () => tg?.ready(),
};
}
// App.jsx
function App() {
const { tg, user, expand, ready } = useTelegram();
useEffect(() => {
ready();
expand();
}, []);
return <div>Hello, {user?.first_name}</div>;
}
// Bot sends Mini App
bot.command('app', (ctx) => {
ctx.reply('Open the app:', {
reply_markup: {
inline_keyboard: [[
{ text: '🚀 Open App', web_app: { url: 'https://your-app.com' } }
]]
}
});
});
Wallet connection for TON blockchain
When to use: When building Web3 Mini Apps
npm install @tonconnect/ui-react
import { TonConnectUIProvider, TonConnectButton } from '@tonconnect/ui-react';
// Wrap app
function App() {
return (
<TonConnectUIProvider manifestUrl="https://your-app.com/tonconnect-manifest.json">
<MainApp />
</TonConnectUIProvider>
);
}
// Use in components
function WalletSection() {
return (
<TonConnectButton />
);
}
{
"url": "https://your-app.com",
"name": "Your Mini App",
"iconUrl": "https://your-app.com/icon.png"
}
import { useTonConnectUI } from '@tonconnect/ui-react';
function PaymentButton({ amount, to }) {
const [tonConnectUI] = useTonConnectUI();
const handlePay = async () => {
const transaction = {
validUntil: Math.floor(Date.now() / 1000) + 60,
messages: [{
address: to,
amount: (amount * 1e9).toString(), // TON to nanoton
}]
};
await tonConnectUI.sendTransaction(transaction);
};
return <button onClick={handlePay}>Pay {amount} TON</button>;
}
Making money from Mini Apps
When to use: When planning Mini App revenue
| Model | Example | Potential |
|---|---|---|
| TON payments | Premium features | High |
| In-app purchases | Virtual goods | High |
| Ads (Telegram Ads) | Display ads | Medium |
| Referral | Share to earn | Medium |
| NFT sales | Digital collectibles | High |
// In your bot
bot.command('premium', (ctx) => {
ctx.replyWithInvoice({
title: 'Premium Access',
description: 'Unlock all features',
payload: 'premium',
provider_token: '', // Empty for Stars
currency: 'XTR', // Telegram Stars
prices: [{ label: 'Premium', amount: 100 }], // 100 Stars
});
});
// Referral system
function ReferralShare() {
const { tg, user } = useTelegram();
const referralLink = `https://t.me/your_bot?start=ref_${user.id}`;
const share = () => {
tg.openTelegramLink(
`https://t.me/share/url?url=${encodeURIComponent(referralLink)}&text=Check this out!`
);
};
return <button onClick={share}>Invite Friends (+10 coins)</button>;
}
UX specific to Telegram Mini Apps
When to use: When designing Mini App interfaces
| Element | Implementation |
|---|---|
| Main Button | tg.MainButton |
| Back Button | tg.BackButton |
| Theme | tg.themeParams |
| Haptics | tg.HapticFeedback |
const tg = window.Telegram.WebApp;
// Show main button
tg.MainButton.setText('Continue');
tg.MainButton.show();
tg.MainButton.onClick(() => {
// Handle click
submitForm();
});
// Loading state
tg.MainButton.showProgress();
// ...
tg.MainButton.hideProgress();
:root {
--tg-theme-bg-color: var(--tg-theme-bg-color, #ffffff);
--tg-theme-text-color: var(--tg-theme-text-color, #000000);
--tg-theme-button-color: var(--tg-theme-button-color, #3390ec);
}
body {
background: var(--tg-theme-bg-color);
color: var(--tg-theme-text-color);
}
// Light feedback
tg.HapticFeedback.impactOccurred('light');
// Success
tg.HapticFeedback.notificationOccurred('success');
// Selection
tg.HapticFeedback.selectionChanged();
Severity: HIGH
Situation: Backend trusts user data without verification
Symptoms:
Why this breaks: initData can be spoofed. Security vulnerability. Users can impersonate others. Data tampering possible.
Recommended fix:
import crypto from 'crypto';
function validateInitData(initData, botToken) {
const params = new URLSearchParams(initData);
const hash = params.get('hash');
params.delete('hash');
// Sort and join
const dataCheckString = Array.from(params.entries())
.sort(([a], [b]) => a.localeCompare(b))
.map(([k, v]) => `${k}=${v}`)
.join('\n');
// Create secret key
const secretKey = crypto
.createHmac('sha256', 'WebAppData')
.update(botToken)
.digest();
// Calculate hash
const calculatedHash = crypto
.createHmac('sha256', secretKey)
.update(dataCheckString)
.digest('hex');
return calculatedHash === hash;
}
app.post('/api/action', (req, res) => {
const { initData } = req.body;
if (!validateInitData(initData, process.env.BOT_TOKEN)) {
return res.status(401).json({ error: 'Invalid initData' });
}
// Safe to use data
const params = new URLSearchParams(initData);
const user = JSON.parse(params.get('user'));
// ...
});
Severity: HIGH
Situation: Wallet connection fails on mobile Telegram
Symptoms:
Why this breaks: Deep linking issues. Wallet app not opening. Return URL problems. Different behavior iOS vs Android.
Recommended fix:
// Use correct manifest
const manifestUrl = 'https://your-domain.com/tonconnect-manifest.json';
// Ensure HTTPS
// Localhost won't work on mobile
// Handle connection states
const [tonConnectUI] = useTonConnectUI();
useEffect(() => {
return tonConnectUI.onStatusChange((wallet) => {
if (wallet) {
console.log('Connected:', wallet.account.address);
}
});
}, []);
// Show QR for desktop
// Show wallet list for mobile
<TonConnectButton />
// Automatically handles this
Severity: MEDIUM
Situation: App lags, slow transitions, poor UX
Symptoms:
Why this breaks: Too much JavaScript. No code splitting. Large bundle size. No loading optimization.
Recommended fix:
// Lazy load heavy components
const HeavyChart = lazy(() => import('./HeavyChart'));
// Optimize images
<img loading="lazy" src="..." />
// Use CSS instead of JS animations
function App() {
const [ready, setReady] = useState(false);
useEffect(() => {
// Show skeleton immediately
// Load data in background
Promise.all([
loadUserData(),
loadAppConfig(),
]).then(() => setReady(true));
}, []);
if (!ready) return <Skeleton />;
return <MainApp />;
}
// vite.config.js
export default {
build: {
rollupOptions: {
output: {
manualChunks: {
vendor: ['react', 'react-dom'],
}
}
}
}
};
Severity: MEDIUM
Situation: App has custom submit buttons that feel non-native
Symptoms:
Why this breaks: MainButton is expected UX. Custom buttons feel foreign. Inconsistent with Telegram. Users don't know what to tap.
Recommended fix:
const tg = window.Telegram.WebApp;
// Show for forms
function showMainButton(text, onClick) {
tg.MainButton.setText(text);
tg.MainButton.onClick(onClick);
tg.MainButton.show();
}
// Hide when not needed
function hideMainButton() {
tg.MainButton.hide();
tg.MainButton.offClick();
}
// Loading state
function setMainButtonLoading(loading) {
if (loading) {
tg.MainButton.showProgress();
tg.MainButton.disable();
} else {
tg.MainButton.hideProgress();
tg.MainButton.enable();
}
}
function useMainButton(text, onClick, visible = true) {
const tg = window.Telegram?.WebApp;
useEffect(() => {
if (!tg) return;
if (visible) {
tg.MainButton.setText(text);
tg.MainButton.onClick(onClick);
tg.MainButton.show();
} else {
tg.MainButton.hide();
}
return () => {
tg.MainButton.offClick(onClick);
};
}, [text, onClick, visible]);
}
Severity: HIGH
Message: Not validating initData - security vulnerability.
Fix action: Implement server-side initData validation with hash verification
Severity: HIGH
Message: Telegram Web App script not included.
Fix action: Add
Severity: MEDIUM
Message: Not calling tg.ready() - Telegram may show loading state.
Fix action: Call window.Telegram.WebApp.ready() when app is ready
Severity: MEDIUM
Message: Not adapting to Telegram theme colors.
Fix action: Use CSS variables from tg.themeParams for colors
Severity: MEDIUM
Message: Missing viewport meta tag for mobile.
Fix action: Add
Skills: telegram-mini-app, gamification-loops, telegram-bot-builder
Workflow:
1. Design game mechanics
2. Build Mini App with tap mechanics
3. Add referral/viral features
4. Integrate TON payments
5. Bot for notifications/onboarding
6. Launch and grow
Skills: telegram-mini-app, blockchain-defi, frontend
Workflow:
1. Design DeFi feature (swap, stake, etc.)
2. Integrate TON Connect
3. Build transaction UI
4. Add wallet management
5. Implement security measures
6. Deploy and audit
Works well with: telegram-bot-builder, frontend, blockchain-defi, viral-generator-builder