Learning Go

File structure

my-go-project/
├── go.mod
├── go.sum
├── cmd/
│   └── myapp/
│       └── main.go
├── pkg/
│   ├── mypackage/
│   │   └── mypackage.go
└── README.md

To initialize a new Go project (which is essentially a new module), follow these steps:
- Open your terminal or command prompt.
- Navigate to the root folder of your project (in your case, the "my-go-project" folder).
- Run the following command to initialize a Go module:
```
go mod init github.com/user/my-go-project
```
Replace github.com/user/my-go-project with your desired module path (usually in the format github.com/username/projectname).

Packages:
- A package in Go is a way to organize related code files. It contains a collection of Go source files that provide a set of functions, types, and variables.
- Packages help modularize your code, making it easier to manage and reuse. You can think of a package as a namespace for related functionality.
- Commonly used packages (e.g., fmt, os, net/http) are part of the Go standard library and can be imported directly into your code.
Modules:
- A module in Go is a higher-level unit that encompasses one or more packages. It defines a versioned collection of related packages.
- When you create a new Go project, you're essentially initializing a new module.
- Modules are managed using the go.mod file, which specifies the module name, dependencies, and their versions.
- Modules allow you to track and manage external dependencies more effectively.