Telegram Auth with better-auth Plugin Isn’t Creating a Session
Setup:
Framework: Astro app, /api/auth route using better-auth v1.2.8
DB: SQLite via drizzleAdapter
Plugin: telegramAuth (BOT_TOKEN and BOT_USERNAME set)
Host: Hetzner VPS, DNS via Cloudflare, reverse-proxy with Caddy ([custom domain] → localhost:4321)
Problem:
Telegram widget flow completes (200 from Telegram), but no better-auth session cookie is set.
Protected routes always return isAuthenticated: false, even though Google OAuth (same setup) works fine.
Has anyone attempted to build a telegram plugin that actually works?
Framework: Astro app, /api/auth route using better-auth v1.2.8
DB: SQLite via drizzleAdapter
Plugin: telegramAuth (BOT_TOKEN and BOT_USERNAME set)
Host: Hetzner VPS, DNS via Cloudflare, reverse-proxy with Caddy ([custom domain] → localhost:4321)
Problem:
Telegram widget flow completes (200 from Telegram), but no better-auth session cookie is set.
Protected routes always return isAuthenticated: false, even though Google OAuth (same setup) works fine.
Has anyone attempted to build a telegram plugin that actually works?
