Go Programming Foundations: Refactoring and Building CLI Tools

Ready to learn Go but tired of dry, abstract syntax guides? The best way to master a new language is by improving existing code and building real, functional tools. This text-based course guides you from Go absolute beginner to writing clean, idiomatic code. You will transition from writing basic scripts to structuring professional command-line interface (CLI) applications, learning how to refactor messy code into maintainable packages and connect your tools to external APIs. What you'll learn: Understand fundamental Go syntax, type systems, and basic program structure; Refactor beginner-level Go code into idiomatic, clean, and maintainable structures; Build a fully functional command-line interface (CLI) tool using Go's standard library; Interact with REST APIs using modern HTTP client patterns and JSON parsing in Go; Apply modern Go practices, including Go modules, error handling, and structured code organization; Practice writing unit tests to ensure your refactored code works flawlessly. You will start with core Go concepts and syntax definitions, gradually moving into hands-on refactoring exercises. Through detailed written explanations and code comparisons, you will evolve a basic script into a robust CLI application that communicates with external web services. This course is designed for beginner developers and programmers new to Go. No prior experience with Go is required, though a basic understanding of programming concepts is helpful. Start reading today and build a solid foundation in Go through practical, hands-on engineering.