Writing an API at the Edge with Workers and Cloud Firestore

This post details the architecture and implementation of a temporary subdomain reservation system using Cloudflare Workers and Cloud Firestore. It covers requirements for uniqueness constraints and blocklisting, a two-worker design for email verification and subdomain reservation, and the use of JWT authentication with Cloud Firestore's REST API. The use of Serverless Framework for managing Workers and node-jose for JWT generation is also discussed.