Vercel Queues now in public beta

Source: Vercel Blog

Overview

Vercel Queues is a durable event‑streaming system built with … and is now available in public beta for all teams. It powers:

• Direct message publishing and consumption
• Workflow for ergonomic multi‑step orchestration

Why use Queues with Functions?

Functions often need a reliable way to defer expensive work and guarantee that tasks complete even when functions crash or new deployments roll out. Queues makes it simple to process messages asynchronously with:

• Automatic retries
• Delivery guarantees (at‑least‑once semantics)

How it works

Publish messages

Publish messages from any route handler.

Create a consumer

Create a consumer to receive messages.

Configure the consumer group

Configure the consumer group that will process the messages.

Adding a trigger makes the route private: it has no public URL and only Vercel’s queue infrastructure can invoke it.

Billing

Vercel Queues is billed per API operation, starting at $0.60 per 1 M operations. It includes:

• Functions invoked by Queues in push mode are charged at existing Fluid compute rates

Getting started

Refer to the Vercel Queues documentation for detailed setup instructions.

Architecture & Guarantees

• Messages are sent to a durable topic
• The queue fans messages out to subscribed consumer groups
• Each consumer group processes messages independently
• The queue redelivers messages to consumer groups until successfully processed or expired

Key Features

• Multiple AZ synchronous replication
• At‑least‑once delivery
• Customizable visibility timeout
• Delayed delivery
• Idempotency keys
• Concurrency control
• Per‑deployment topic partitioning