Cloudflare Queues
ELI5 — The Vibe Check
Cloudflare Queues is a message queue for Workers. Producer Worker sends a message, Consumer Worker processes it later. It's the 'I'll get to it' pattern — perfect for background jobs, email sending, or anything that doesn't need to happen this millisecond. Like SQS but living in the Cloudflare ecosystem.
Real Talk
Cloudflare Queues is a global message queue service built for Cloudflare Workers. It supports at-least-once delivery, batch consumption, retries with backoff, and dead-letter queues. Producers and consumers are both Workers, making it ideal for decoupling workloads and handling background processing at the edge.
When You'll Hear This
"We use Queues to process image uploads asynchronously." / "Cloudflare Queues handles the email sending so the API responds instantly."
Related Terms
Background Job
A background job is work your app does behind the scenes that the user doesn't wait for.
Cloudflare Workers
Workers run JavaScript at the edge — on Cloudflare's network of 300+ data centers worldwide. Your code executes in milliseconds, right next to the user.
Message Queue
A Message Queue is a waiting room for tasks. Producers drop tasks in the queue, consumers pick them up and process them one at a time.
Pub/Sub (Pub/Sub)
Pub/Sub is like a newspaper service. Publishers write articles and drop them off.
SQS (Simple Queue Service)
SQS is a message queue in the cloud. One part of your app puts messages in the queue, another part picks them up and processes them later.