In Go (also known as Golang), modules are a way to manage the dependencies of your Go projects. They were introduced to help address some of the challenges and complexities associated with managing dependencies in Go code. Modules provide a structured and versioned approach to dependency management. Here's how modules work in Go:
To create a new module or convert an existing Go project into a module, you can use the go mod init command. This command initializes a new module and creates a go.mod file in the root of your project. The go.mod file is where you specify your project's dependencies and their versions.
go mod init mymodule
This will create a go.mod file
module toolbox
go 1.21.4
You can use the import statement to bring external packages into your Go project. When you use an external package, Go will automatically fetch the necessary code and store it in the module's cache
import "github.com/example/mypackage"
The go.mod file is where you define your project's dependencies. It lists the module name, its version, and the required versions of your dependencies. The file is automatically generated and updated by Go tools.
Example go.mod file:
module mymodule
go 1.17
require (
github.com/example/mypackage v1.2.0
)