---
title: Task 5.4 Telegram Mini App Shell Implementation
tags: [taskmaster, telegram, mini-app, frontend]
created: 2026-05-24
status: partial-foundation
---

# Task 5.4 Telegram Mini App Shell Implementation

This document captures the first frontend implementation pass for the Telegram
Mini App surface.

## Implemented foundation

- Added `/telegram` route.
- Added `src/utils/telegram-webapp.ts` for safe Telegram WebApp context parsing.
- Added `TelegramMiniAppShell` with three first-pass states:
  - unsupported browser context,
  - Telegram detected but unlinked,
  - Telegram detected and authenticated web user present.
- Added basic marketplace/escrow action cards for requests, request creation,
  payment/escrow, chat, and account.
- Added Telegram chrome attachment helper for MainButton, BackButton, and haptic
  feedback when available.
- Added safe-area and Telegram theme helpers.

## Tests

- `frontend/__tests__/utils-test/telegram-webapp.test.ts`
- `frontend/__tests__/sections/telegram/telegram-mini-app-shell.test.tsx`

Coverage includes standard browser fallback, Telegram context parsing,
safe-area/theme fallback, start parameter parsing, unsupported state, unlinked
state, and linked state rendering.

## Remaining work

- Wire Mini App shell to backend Telegram session endpoints.
- Add request/offer/payment/dispute data loading inside the Mini App route.
- Add upload and dispute action surfaces that call canonical backend APIs.
- Add Telegram BackButton routing behavior once final navigation stack is known.
- Add client matrix QA across iOS, Android, Desktop, and Web Telegram clients.