Article: One Cache to Rule Them All: Handling Responses and In-Flight Requests with Durable Objects

Traditional caching fails to stop “thundering herds” where multiple clients trigger the same work during a miss. This article proposes using Cloudflare Durable Objects to treat in-flight work and finished results as two states of one cache entry. By routing to a single owner, systems eliminate redundant tasks. This pattern replaces complex locks with simple promises, simplifying the system design.

By Gabor Koos