Things I Wish I Knew Before My First Go Project

Why I Stopped Using "Flat" Project Structures in Go When I first started with Go, I loved how simple it was. I put my main.go, my database logic, and my HTML templates all in the root folder. It worked! Until I had more than five files. Then, it became a scavenger hunt. If you are a junior developer, you’ve probably felt that "folder fatigue." Here is how I transitioned to a Standard Go Project Layout and why it changed my productivity. a. The "Cmd" vs. "Internal" Divide In Go, the separation of concerns isn't just a suggestion; the compiler actually helps you enforce it. cmd/: This is for your entry points. If you have a web server and a CLI tool, they each get a subfolder here. No logic goes here—only "wiring" things together. And then we have: internal/: This is the secret sauce. Code inside internal/ cannot be imported by other projects. It’s the perfect place for your private business logic. b. The "Dependency Injection" Habit I used to initialize my database inside every function