Telegram UserAuth UI

Reusable Angular-hosted UI for Telegram login.

The app now boots directly into the live userauth flow instead of a demo dialog. On load it:

• checks GET /userauth/session
• creates a QR session with POST /userauth/qr/create
• polls GET /userauth/qr/poll?token=... every 5 seconds
• falls back to session re-check polling if QR creation or polling fails

Run

npm start

The dev server runs on port 4300.

Build

npm run build

Backend contract

This UI is intended to work against a reusable Telegram auth backend with these endpoints:

• GET /userauth/session
• POST /userauth/qr/create
• GET /userauth/qr/poll?token=...
• POST /userauth/qr/confirm
• GET /userauth/telegram/callback
• POST /userauth/logout
• POST /usersession/{sessionId}

Expected authenticated session payload:

{
	"sessionId": "550e8400-e29b-41d4-a716-446655440000",
	"telegramUserId": 123456789,
	"username": "ivan_petrov",
	"displayName": "Ivan Petrov",
	"active": true,
	"expiresAt": "2026-05-21T14:30:00Z"
}

Runtime expectations preserved by the UI:

• QR polling every 5 seconds
• QR expiry after 100 checks on the frontend
• direct Telegram open button using the same deep link returned by QR creation
• fallback session re-check if QR creation fails

Cookie requirements expected by consumers:

• name: userauth_session
• path: /
• HttpOnly: true
• Secure: true
• SameSite: None
• MaxAge: 86400

Credentialed CORS is required on the backend.