Go (Golang) Application Architecture: From Idea to Production

The book "Go (Golang) Application Architecture" is a practical guide to building reliable, scalable, and maintainable software systems in the Go language. It is intended for developers who have already mastered the basics of Golang and want to move to the next level — learning to design the architecture of enterprise applications, microservices, and high-load systems.

Unlike many textbooks that focus on syntax, this book emphasizes architectural decisions that determine a project's long-term success. You will learn how Go, with its simplicity and powerful standard library, allows you to implement best development practices without unnecessary complexity.

What you will learn from the book:

• Architecture fundamentals in Go: SOLID principles, Clean Architecture, hexagonal architecture, and their implementation in Golang.
• Design patterns: creational, structural, and behavioral patterns adapted to Go idioms (e.g., functional options, pipelines, fan-in/fan-out).
• Modularity and code organization: how to structure projects, use packages, interfaces, and dependency injection (DI) to create loosely coupled components.
• Microservice architecture: service design, inter-service communication via gRPC and message queues (RabbitMQ, Kafka), state and configuration management.
• Error handling and logging: idiomatic approach to errors in Go, creating centralized logging and monitoring.
• Testing and code quality: unit tests, integration tests, mocks, testing HTTP handlers and databases. Code coverage and benchmarks.
• Performance and scaling: profiling (pprof), memory optimization, working with goroutines and channels, load balancing.

Who this book is for:

• Go developers with 6+ months of experience who want to systematize their knowledge of architecture.
• Tech leads and architects considering Go as a language for new projects.
• Developers from other languages (Python, Java, C#) transitioning to Golang and looking for proven architectural patterns.
• Students and instructors of modern software development courses.

The book contains numerous code examples, diagrams, and practical exercises. Each chapter concludes with a summary and review questions for self-assessment. The author shares real-world experience implementing the described approaches in commercial projects, including common mistakes and how to avoid them.

After reading, you will be able to confidently design and refactor Go applications, choose the right architectural patterns for specific business tasks, and create code that is easy to test, extend, and maintain for years.

Join the community of professional Go developers and build an architecture that can withstand any load!