BUILDSTAFF

Build a Pub/Sub Message Broker

150 minutes

0 completed

nextjssystemsmessagingpub-sub

Description

Build a publish/subscribe message broker with topics, subscriptions, and delivery guarantees.

Requirements

Topics: create, list, delete

Subscriptions: subscribe to topics, unsubscribe

Publish messages to topics, deliver to all subscribers

At-least-once delivery: messages persist until acknowledged

Message acknowledgment: subscriber confirms receipt

Dead letter topic: unacknowledged messages after 3 retries

Dashboard: topic list, message rates, subscriber counts, pending messages

HTTP API for all operations

Store messages in a database. Messages have a visibility timeout. Delivery via push to endpoints or pull via API.

Message filtering (attribute-based routing)

Fan-out patterns (one message to many subscribers)

Message ordering guarantees per topic

You will be guided through MCP setup before the timer starts