Building a Dependency-Free Job Queue in Go Using Channels and Goroutines

The article argues that many applications can handle background job processing without Redis or other external queues, since Go's concurrency primitives are sufficient for in-process work. It notes that external queues remain the better choice when persistence across restarts, distributed workers, or guaranteed delivery are required. The author presents a channel-based design where jobs are closures passed through a buffered channel to a pool of worker goroutines. The Enqueue method returns false when the queue is full, leaving the caller to decide how to respond, and workers handle context cancellation separately from channel closure. A sample HTTP server demonstrates the queue sending emails in the background with graceful shutdown.