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Article0 replies2,433 followingPosted 31 May 2026, 14:27 UTC45.7K views1,570 votes

Choosing Between Cloudflare KV and R2 for Worker Assets

Choose Cloudflare KV for small edge metadata and R2 for large streamed assets. This guide compares consistency, size limits, and shows a Worker that streams an R2 object.

Community & Careers · Guide

kv-storage

cloudflareworkers edge-asset-delivery

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Tasadduq Burneyowner

Started31 May 2026, 14:27 UTC

Level 38Owner34,775 rep points

Community & Careers

Article0 replies2,940 followingPosted 28 Mar 2026, 15:40 UTC12.1K views1,955 votes

When Edge Meets Persistence: Using Cloudflare Workers KV for Read‑Heavy Caching

Learn how Cloudflare Workers KV can turn a stateless edge function into a fast, globally‑replicated cache. The post walks through a real example, explains the write‑once/read‑many pattern, and highlights when KV isn’t the right tool.

Community & Careers · Blog

kv-store

cloudflareworkers cloudflare-workers

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Article1 reply1 comment1,946 followingPosted 12 Oct 2025, 19:02 UTC141.7K views4,541 votes

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Diagnosing Cloudflare Workers Durable Objects: Common Production Issues and Fixes

A diagnostic guide mapping common Cloudflare Workers Durable Objects production symptoms — inconsistent reads, WebSocket drops, transaction aborts, migration stalls, alarm coalescing, RPC binding errors, and concurrency gaps — to root causes with ordered checks, fixes, and escalation criteria.

Community & Careers · Guide

cloudflareworkers durable-objects cloudflare-workers

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Article0 replies4,587 followingPosted 12 Jun 2026, 19:25 UTC73K views1,500 votes

Building a KV‑backed session store in Cloudflare Workers

Step‑by‑step guide to create a Cloudflare Worker that stores user sessions in Workers KV, with configuration, testing, and rollback instructions.

Community & Careers · Guide

cloudflareworkers session-store kv

Community & Careers

Article1 reply1 comment1,871 followingPosted 09 Feb 2026, 03:43 UTC11.6K views4,608 votes

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Serializing Per-Key Edge State with Cloudflare Workers Durable Objects

Durable Objects serialize mutations for a single object ID at the edge, preventing lost updates without an external lock.

Community & Careers · Blog

cloudflareworkers concurrency durable-objects

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Article1 reply1 comment4,883 followingPosted 09 Jun 2026, 13:17 UTC125.2K views2,160 votes

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Using Cloudflare Workers KV for Low‑Latency Feature Flags at the Edge

Learn how to use Cloudflare Workers KV for fast, edge‑served feature‑flag reads, with a concrete example, consistency trade‑off, and verification steps.

Community & Careers · Blog

kv-storage

cloudflareworkers edge-caching

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Article0 replies3,265 followingPosted 02 Sept 2025, 20:23 UTC75K views3,900 votes

Durable Objects for Per-Entity State in Cloudflare Workers: An Architecture Note

Use Durable Objects when a single entity needs serialized writes and read-after-write consistency. This note covers trust boundaries, single-region data homing, operational checks, and when to choose KV, R2, or D1 instead.

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architecture

cloudflareworkers durable-objects

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Article1 reply1 comment525 followingPosted 11 Apr 2026, 15:57 UTC11.9K views2,589 votes

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Stateful Edge Logic Without a Database Roundtrip: Durable Objects in Practice

Durable Objects give serialized, strongly consistent state per ID at the edge. Use them as the owner of one entity, keep state under 10 MB, and verify alarms and ID routing locally with wrangler dev.

Community & Careers · Blog

cloudflareworkers durable-objects stateful-serverless

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Article0 replies4,635 followingPosted 25 May 2026, 13:59 UTC83K views3,939 votes

Cloudflare Workers KV: Configuration, Limits, and Consistency Pitfalls

Use Cloudflare Workers KV for read-heavy edge state. Learn namespace binding, read/write patterns, limits, and how to verify without stale-read bugs.

Community & Careers · Guide

cloudflareworkers edge-storage wrangler