Upstash QStash

QStash by Upstash provides reliable message delivery via HTTP—perfect for serverless functions that can't maintain persistent connections. Send a message, QStash guarantees delivery.

Key Features:

• HTTP Delivery - Messages delivered as HTTP requests
• Guaranteed Delivery - Retries until your endpoint confirms
• Scheduling - Send messages at specific times
• Callbacks - Get notified of delivery success or failure

Why QStash for serverless:

• No Connections - Works without persistent queue connections
• Edge Compatible - Call from edge functions, deliver anywhere
• Pay Per Message - True serverless pricing model
• Simple - Understand and use in minutes

QStash capabilities:

• Delays - Schedule messages for future delivery
• Retries - Configurable retry policies
• Dead Letter Queue - Capture failed messages
• Topics - Broadcast to multiple endpoints

QStash solves the "how do I do background jobs from edge functions" problem. When you can't maintain a connection to a traditional queue, QStash's HTTP-based approach provides reliable asynchronous processing.