How the casino integrates Live-Casino into Telegram and Web versions

1) Why combine Telegram and Web

Telegram Mini App (WebApp) gives instant login, notifications and a "pocket" interface.

The web version provides full functionality: checkout, KYC, large screens, multi-camera video and advanced analytics.

In conjunction: Telegram - entry point, retention and communication; Web is the main "hall" with live tables and payments.

2) Integration architecture (high-level)

Customer:

Telegram WebApp on the web (Android - Chrome WebView; iOS — WKWebView; desktop Telegram - built-in browser).
Classic Web Client (SPA/PWA) in a regular browser.
Platform server: accounts, wallet, bonuses, RG limits, betting APIs, WebSockets, integration with live game providers.
Live game provider: video studios, WebRTC/LL-HLS, game logic of rounds, S2S 'debit/credit' calls.
Media layer: SFU/media servers, TURN, origin-shield, multi-CDN.
Safety and compliance: KYC/AML, geo-restrictions, logging, WORM replay rounds.

3) Telegram login: secure authorization

Deep Link/Start parameter in the bot → opening WebApp.

WebAppInitData (signed Telegram data) is checked on the server: we calculate the HMAC signatures and expiration date.

After validation, the server issues a short-lived JWT for the session (audience = webapp, exp = 10-15 minutes).

On the Web, reuse SSO: 'telegram _ user _ id' maps to 'player _ id'; when moving from Telegram to the Web, we transfer the one-time 'continue _ token'.

Mini-diagram:


Telegram Bot → open WebApp → send initData → (Server: verify) → issue session JWT → load lobby

4) Payment scenarios and compliance

For real money, the casino usually makes payments only in the Web version with a full cash register, 3DS, KYC and a transaction log.

In Telegram WebApp, use the role of "companion": balance, promotions, viewing history, quick links to deposit/output to the Web.

Comply with the requirements of jurisdictions: geo-blocking, self-exclusion, limits, age filters.

Bottom line: Telegram is a legal "thin client" and a CRM bridge, the Web is the only channel for financial transactions.

5) How the live game is launched from Telegram/Web

1. The client chooses a table → the platform makes a S2S 'CreateGameSession' to the provider: 'player _ id', 'currency', 'limits', RG flags, callback URLs.

2. The provider returns' game _ token'and' launch _ url '.

3. A web client (in Telegram WebView or browser) opens an iframe/live page, installs WebSocket to the game server and launches WebRTC (or LL-HLS for "viewers").

4. Money transactions go S2S through the wallet: 'debit/credit/rollback' with idempotency by 'transaction _ id'.

6) Video inside Telegram WebView: nuances and solutions

WebRTC: low latency, but sensitive to iOS networks/policies. Keep the TURN pool, track the share of relay sessions.

LL-HLS: cached CDN, suitable for "spectator" mode and folback, segments 200-500 ms.

Autoplay and sound: mobile browsers and WebView often require a custom gesture; add "tap to start."

Key parameters: short GOP (≤2 c), keyframe on demand, SVC/simulacast, soft degradation of fps before lowering the resolution.

Folback logic: for WebRTC → LL-HLS problems; with a heavy channel - temporarily expand the jitter-buffer and omit the quality profile.

7) UX patterns that work

Micro-wallet next to the table (balance, quick deposit - link to the Web-cash desk).

Major CTAs: Bid, Retake, Clear; all secondary - for one tap.

Vertical tables and one-handed control on mobile.

Integration with the bot: stickers/notifications about your favorite dealers, tournament reminders, personal offers (taking into account RG limits).

Without "multi-layer": minimize transitions to the Web from Telegram - only for steps that require Web components (cash desk, KYC).

8) Platform limitations and how to bypass them correctly

iOS WKWebView: tough autoplay policy; plan a custom tap, show a clear "start screen."

Permissions: access to the microphone/camera is not needed for viewing, but WebRTC can request them - disable unnecessary media requests.

Device fingerprinting in the web is limited: shift anti-fraud to the server (behavioral analytics, velocity limits, IP/ASN assessment).

Cache and memory: webview has fewer limits - keep 2-3 ABR profiles, the rest on demand.

PWA on the Web: offline UI cache (without video), fast start and a single front code.

9) Security: from tokens to webhooks

WebAppInitData verification: server signature verification, TTL.

JWT for client: short-lived, 'aud/iss/sub/exp/nbf/jti', key rotation (JWK).

S2S: mTLS, IP-allowlist, signature of the provider's webhooks (HMAC c timestamp), anti-replay, wallet idempotency.

Storage: tokenization'player _ id', field-level encryption for PII, WORM logs of replay rounds.

10) Observability and alerts

RUM-SDK in Telegram WebApp and Web: e2e-delay, startup, stalls, quality-switches, decoder errors.

WebRTC-stats: RTT, loss, jitter, NACK/PLI/RTX, relay-ratio по TURN.

CDN dashboards: cache-hit, TTFB, PoP/ASN errors.

SLO targets (example):

WebRTC 95p e2e ≤ 2,5 c; LL-HLS ≤ 5 c rebuilding <0.5% time; startup ≤ 1,5–2,5 c
TURN-relay ≤ 25% (by region), cache-hit ≥ 80%

11) Antifraud and responsible play

Real time: checking RG limits to debit, blocking bets at e2e delay> threshold.

Behavior: alerts to sharp patterns (late bet spikes, device changes/ASN).

Messages in UI: banners about pauses, limits, self-exclusion; in Telegram - cautious notifications without "triggers."

12) Mini BOMs (total)

12. 1. Telegram WebApp verification

text client → server: initData server:
- parse query
- recompute HMAC with bot_token
- check 'auth_date' TTL
- upsert player (telegram_id ↔ player_id)
- issue JWT (exp 15m, aud=webapp)

12. 2. Starting a live table

http
POST /api/v1/provider/session
{ player_id, currency, lang, limits, callbacks }
→ { game_token, launch_url, expires_in }

12. 3. Wallet (idempotence)

http
POST /wallet/debit
Idempotency-Key: trx-001
{ player_id, round_id, transaction_id, amount, currency, bet_meta }

13) Production launch checklist

Telegram/Web login

Server verification'initData ', repetition protection (TTL ≤ 5 min)
JWT with short TTL and key rotation (JWK)
Smooth WebApp → Web transition (one-time 'continue _ token')

Video

WebRTC with SVC/simulacast, keyframe on demand
LL-HLS folback, partial-segments 200-500 ms
TURN pool and relay share monitoring

Wallet/Bets

IDempotent 'debit/credit/rollback'
Real-time RG limits
Signed Provider Webhooks

Compliance

Geo-locks, age, self-exclusion
Payments - Full KYC Web Cash Only
WORM replicas and access auditing

Observability

RUM в WebApp и Web, WebRTC-stats
SLO alerts (e2e, rebuilding, relay-ratio, cache-hit)
CDN/Profile/Folback Switch Runbook

14) Frequent mistakes and how to prevent them

Bets inside unstable WebRTC without folback → use LL-HLS for viewers and block "late" bets.

Long GOP and rare keyframes → slow recovery, black screens.

There is no initData verification → identity substitution via Telegram parameters.

Payments in WebView without a full KYC/3DS → compliance and chargeback risks.

The lack of RUM in Telegram WebApp → a "blind" launch.

The correct integration of Live-Casino into Telegram and the Web is a single product stream: secure login via WebApp, fast launch of the live table, low latency (WebRTC) with reliable LL-HLS folback, strict wallet idempotency, observability and compliance. Telegram helps to involve and communicate, the Web provides full functionality and legal purity. In conjunction, they give the player the convenience and atmosphere of a "living room," and the operator - scale, quality control and a predictable economy.