#636 — Domain Detection Middleware

Repo: Twill-AI/facade State: closed | Status: done Assignee: meliascosta

Created: 2025-10-08 · Updated: 2025-10-22

Description

Create FastAPI middleware to detect partner from incoming request hostname and inject whitelabel configuration into request state for use by downstream handlers. Ensure middleware runs before authentication.

AC:

• Middleware extracts hostname from request.headers.get('host')

• Queries partner_domain table for matching verified domain

• Loads partner_whitelabel_config if partner found

• Injects request.state.partner_id and request.state.whitelabel_config

• Handles missing/invalid domains gracefully (Falls back to my.twillai.com, default Twill branding)

• Middleware registered in app/main.py before route handlers

• Unit tests cover domain matching logic

Notes

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