Hi everyone,

I’m currently hosting my FastAPI backend on Railway, and I need to set up a custom public domain URL specifically to receive Stripe webhook payloads. My front end is managed with Webflow at scoremyinterview.com, but Webflow cannot directly handle Stripe webhook requests. Therefore, I want to have a dedicated subdomain (e.g., api.scoremyinterview.com) that points directly to my Railway deployment.

I’m facing an issue where my current attempts via Cloudflare result in SSL certificate errors because Railway’s default certificate doesn’t seem to cover my custom domain. I would like guidance on how to properly configure a custom domain for my Railway project so that it:

1. Is publicly accessible (e.g., api.scoremyinterview.com).
2. Provides a valid SSL certificate (using Let’s Encrypt or another method) for that custom domain.
3. Properly routes POST requests to my FastAPI webhook endpoint (/stripe/webhook) for Stripe events.

Any help or documentation on setting up custom domains with Railway for backend services would be greatly appreciated.

Thank you!

Nick