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How to Use Telegram Mini Apps: JavaScript Web Interfaces, Bot APIs, Dynamic Theming & Seamless Payments

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How to Use Telegram Mini Apps: JavaScript Web Interfaces, Bot APIs, Dynamic Theming & Seamless Payments

Explore the revolutionary runtime that transforms Telegram bots into full-fledged interactive web applications. Learn how developers build e-commerce stores, utility dashboards, and Web3 tools that run smoothly inside any Telegram chat.

widgets Official demonstration: Launching an interactive food delivery and product ordering Mini App directly from a bot keyboard with instant theme synchronization.

javascript

Pure JavaScript Runtime

Built with HTML5, CSS, and JS: developers can use React, Vue, Svelte, or Vanilla JS to build rich app experiences.

palette

Dynamic Theme Matching

Mini Apps automatically inherit the user's active Telegram color scheme, dark mode state, and font palette via CSS variables.

payments

Integrated 1-Tap Payments

Native checkout supports credit cards, Apple Pay, Google Pay, Telegram Stars, and TON cryptocurrency with zero friction.

developer_mode SDK ARCHITECTURE

How the Telegram.WebApp JavaScript SDK Operates

The Mini App runtime communicates with the Telegram host container through the official telegram-web-app.js bridge:

smart_button

MainButton & BackButton API: Mini Apps can dynamically manipulate the primary action button anchored to the bottom of the Telegram screen.

vibration

HapticFeedback Engine: Trigger subtle tactile sensations on mobile devices during button clicks, error states, and payment completions.

cloud_done

CloudStorage Key-Value Store: Store up to 1 MB of user state per bot across sessions without requiring external database lookups.

science LIVE MINI APP RUNTIME SANDBOX

Interactive Mini App Simulator

Experience a mock Telegram Mini App viewport. Toggle theme variables and test MainButton state transitions in real time.

Container Theme Mode:

Coffee & Pastry Bot

Select your roast and grind size. The Telegram MainButton below dynamically updates price and order state.

auto_awesome EXECUTIVE VISUAL SUMMARY

Telegram Mini Apps & Web Interfaces Architecture

A vertical 9:16 reference architecture illustrating the Telegram Mini App WebView runtime, JavaScript SDK bridge (Telegram.WebApp), dynamic CSS theming variables, biometric authentication, and cloud storage integration.

Telegram Mini Apps Infographic

zoom_in Click to Expand (9:16 Hi-Res)

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