01- Go Modules

(Under construction)

Main topics:

• Modules in Go

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1. What is a module in Go

• In modern Go (1.17+), creating a Go module is necessary for almost all development, when you're:

  • Importing third-party packages (like quic-go)
  • Building projects with multiple files
  • Using dependency/version tracking

• A Go module is simply a project with a go.mod file at its root. It tells Go:

  • What your module is called
  • What dependencies it uses (and their versions)
  • How to build and fetch those dependencies

A side note: This concept is quite common, e.g. if you have worked with dockers, we create a project similar to the one we are discussing here.

When we do not need a module:

• If you're writing a one-file script with only Go standard library packages
• If you’re just experimenting and not using go get or go build

(under construnction)