CD

Cloudflare Developers•6mo ago•

15 replies

cubby

Two Workers + Same Domain + Route Conflicts

I have two Workers that need to share the same domain with path-based routing:
- Site Worker: Should handle sub.domain.com/* (everything except API)
- API Worker: Should handle sub.domain.com/api/* (API endpoints only)

Current wrangler configs:

Site worker:
"routes": [
{ "pattern": "sub.domain.com", "zone_name": "domain.com" },
{ "pattern": "sub.domain.com/", "zone_name": "domain.com" },
{ "pattern": "sub.domain.com/!(api)/", "zone_name": "domain.com" }
]

API worker:
"routes": [
{ "pattern": "sub.domain.com/api/", "zone_name": "domain.com" }
]

Problem:
- sub.domain.com/ → Works (site worker)
- sub.domain.com/api/ → 404 (should hit API worker)

What we've tried:
- Both workers deploy successfully
- Individual subdomains work (api.sub.domain.com)
- Adding API routes breaks subdomain routing entirely
- Removing routes from API worker temporarily fixes subdomain but no path routing
- Different route pattern combinations

Both workers deploy successfully, but API routes return 404. Do I need to remove custom domains from one worker? Is the route pattern syntax correct for excluding /api/* from the site worker?

Any guidance on proper multi-worker routing appreciated!