Platforms with Telegram bots and WebApp

Introduction

Telegram bots and WebApp expand the channel of interaction with players: they allow you to launch bets and games directly in the messenger and browser, without installing a client. Integration requires a single backend, session synchronization, adaptive UI, and a reliable payment and security mechanism.

1. Solution Architecture

1. Single backend

The API-Gateway accepts HTTP requests from WebApp and webhook events from the Telegram Bot API.
Auth Service issues JWT when authorized via Telegram OAuth2 and WebApp login.
Session Service stores sessions in Redis, provides Single Sign-On between the bot and WebApp.

2. Telegram Bot

Deployed on Node. js/Python using webhook or long-polling.
Команды `/start`, `/balance`, `/spin`, `/deposit`, `/withdraw`.
Inline buttons and menus via 'reply _ markup' for game selection and promo.

3. WebApp (PWA)

Progressive Web App on React/Vue, installed as an application on the Home screen.
Service Worker caches static and supports offline access to bid history and balance.
Integration with Telegram Login Widget for uniform authentication.

2. Telegram bot functionality

1. Navigation and menus

Main menu: "Games," "Deposit," "Output," "Promotions," "Support."
Inline buttons launch the game on WebApp via deep link or send a fast mini-spin.

2. Mini chat games

Simple text or graphic games (guess the number, bet on the drop) with a quick result.
The result is kept in history, bets are debited from "Real Wallet."

3. Push-notices

`bot. sendMessage 'during promotions, completion of the vager, reaching the VIP level.
Using 'chat _ id' and storing user preferences in the User Service.

4. Chat payments

Sending an account through the built-in Invoice API Telegram (Stripe/SberPay).
Processing callbacks about the payment status, automatic issuance of bonuses.

3. WebApp functionality

1. PWA features

Web App Manifest: icons, standalone mode, color theme.
Offline mode to view balance and session history.

2. Single UI/UX

Adaptive design for mobile and desktops.
Game card components, spin buttons, leaderboards implemented through the CSS Grid/Flexbox.

3. Integration with Telegram

Deep links `tg: //resolve? domain = BotName & start = payload 'open WebApp with authorization.
If WebApp is opened from a browser, offers "Continue to Telegram" via 'tg ://'.

4. Safety

HTTPS everywhere, CSP, JWT with short TTL and refresh-token.
OTP/MFA via Telegram bot for critical operations (withdrawal of funds).

4. Synchronization and sessions

Shared Session Store: Redis хранит `{ userId, telegramId?, webSessionId, jwt }`.
Single Sign-On: when first start, WebApp receives a'start _ payload' from the bot, Auth Service links two accounts.
Session Refresh: WebApp and the bot can request '/auth/refresh 'to renew the token.

5. Payments and currency

1. PSP Integration

Telegram Invoice API + WebApp checkout через Stripe/Adyen.
Support for crypto wallets through the built-in Web3 module in WebApp and sending the wallet address with a bot.

2. Fees and deferred payments

Fixing the course and commission for the duration of the session, storage in the Payment Service.
Webhook processing of statuses ('succeeded', 'failed') with user notification in chat and WebApp.

6. Safety and compliance

KYC/AML

Bot offers '/kyc 'for downloading documents via WebApp iframe.
Compliance Service checks and notifies the bot when verification is complete.

Anti-Fraud

Scoring through a microservice, with high-risk bot, transfers the user to an additional check.
Rate limits and request rates in the bot via RateLimiter.

Audit Trail

All bot commands, WebApp requests and payment transactions are logged in immutable storage.

7. Deployment and maintenance

CI/CD

Separate pipelines for Bot and WebApp: tests, building Docker images, canary release in Kubernetes.

Monitoring

Metrics' bot. requests_total`, `webapp. page_load_time`, error-rate в Prometheus + Grafana.
Alerts to webhooks and latency outages.

24/7 support

Integration with ticket-system (Jira), automatic creation of task at'bot. on(‘error’)`.

Conclusion

The integration of the Telegram bot and PWA-WebApp into the online casino platform creates an additional channel for involving and retaining players. A single backend, synchronized sessions, easy navigation and reliable payments are the key to quickly launching and scaling a multi-device solution without losing security and convenience.