cloudflare-workers

To build a stateful serverless application with Cloudflare Workers, use Durable Objects for actor-style, single-threaded coordination alongside transactional storage, WebSockets, and alarms to manage distributed state at the edge.

The best way to combine KV, R2, and D1 in edge architecture is routing requests via Workers, caching pages in KV, storing objects in R2, and using D1 SQLite for relational data queries to achieve low-latency global access.

Yes, you can use Cloudflare Workers AI bindings and Vectorize for retrieval-augmented generation by performing inference steps and similarity searches on embeddings directly within your serverless edge application backend.

Cloudflare Workers supports real-time edge coordination through WebSockets by leveraging Durable Objects, which provide actor-style consistency and single-threaded execution for reliable stateful connections.

Common architectural traps when designing edge-first serverless applications involve mishandling distributed state isolation, ignoring edge data constraints, and incorrectly applying server-like assumptions instead of actor-style coordination patterns.

You should use Durable Objects instead of standard KV storage when your application requires single-threaded actor consistency, transactional storage, or alarms for complex stateful coordination beyond simple caching.