Distributed Systems in Go: A Complete Guide to Building Cloud-Native Distributed Go Systems

Author(s): Joel Bryan Juliano (Author)

• Publisher: Leanpub
• Publication Date: 2026-06-05
• Language: English
• Print length: 373 pages

Book Description

Every Go developer eventually faces the same moment: a single binary isn’t enough anymore. You need multiple services. They need to authenticate, persist data, communicate, and stay running when things break. You’ve read the CAP theorem. You understand the fallacies of distributed computing. But at 2am, when your Kafka consumer is accumulating lag and your context deadlines are firing, theory doesn’t help.

Distributed Systems in Go closes that gap. Built on the author’s experience operating cloud-native distributed systems in production, it builds a complete system piece by piece — authentication, databases, message queues, gRPC, circuit breakers, distributed tracing. Every chapter teaches a pattern, then extracts it into a reusable platform SDK. By Chapter 15, you have a deployable six-service system and an SDK that makes the next service easier to build than the last.

What you’ll build:

HTTP services with composable middleware (no framework required)
JWT authentication with ECDSA signing and pluggable auth agents
PostgreSQL access with zero-downtime migrations and the outbox pattern
Kafka producers and consumers with backpressure and dead-letter queues
gRPC service-to-service calls with retries, timeouts, and circuit breakers
Distributed consistency with sagas, idempotency keys, and reconciliation
Observability: structured logging (slog), Prometheus metrics, OpenTelemetry tracing
Tests against real infrastructure with testcontainers and chaos patterns
Kubernetes deployment manifests for all six services

Every code example is complete and self-contained.

This is the book for the Go developer who can build a service but hasn’t yet built a system. If you’ve copy-pasted middleware you don’t fully understand, or stared at a “context deadline exceeded” error across five services with no idea where the deadline came from, this book is for you.

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