I Built a Production-Ready Job Queue in Go from Scratch

Description and use

Built a production-ready job queue in Go using Postgres, featuring retries, rate limiting, and graceful shutdown.

Develop a background job queue that handles retries, rate limiting, and graceful shutdown without relying on external services like Redis.

A production-ready job queue that eliminates the need for Redis, demonstrates ACID compliance, and showcases Go concurrency best practices.

1. Client POST /jobs to Gin API
2. API writes job to Postgres jobs table
3. Worker pool (5 goroutines) fetches pending jobs using FOR UPDATE SKIP LOCKED
4. Worker processes job and updates status
5. On failure, retry with exponential backoff or mark as failed after max attempts
6. Graceful shutdown via context cancellation

A REST API where you POST a task, it goes to Postgres, and Go workers process it in background with retries, rate limiting and graceful shutdown.

Postgres as queue (no Redis needed)

Worker Pool with 5 Goroutines

Retry with exponential backoff