____         ____  _             
 / ___| ___   |  _ \| | __ _ _   _ 
| |  _ / _ \  | |_) | |/ _` | | | |
| |_| | (_) | |  __/| | (_| | |_| |
 \____|\___/  |_|   |_|\__,_|\__, |
                             |___/ 

GO Playground Project

This is the playground project to start with some go learning.

Setup Go

Depending on your environment install go with

OS	Command
Arch-based	sudo pacman -S go
Debian-based	sudo apt install golang-go
MacOS	brew install go

Check if installation was successful with go version.

Ensure to have a GOPATH env variable set to $HOME/go and $GOPATH/bin in your PATH env variable. The directory $HOME/go should be created automatically by the go installation. For instance you can put the following lines in your .bashrc or .zshrc file:

export GOPATH=$HOME/go
export PATH=$PATH:$GOPATH/bin

Install a linter

Install a linter with go install golang.org/x/lint/golint@latest.

Simple Hello World

Create a new directory example1.

take example1
go mod init example1

# For production ready code:
go mod init github.com/PRODYNA/pan_deploy

Write your code in example1.go:

package main

import "fmt"

func main() {
    message := "Hello, world!"
    fmt.Printf("Message from Example1: %s\n", message)
}

Run it with go run example1.go. To create an executable example1 run go build example1.go.

Provide a Makefile to build and run the project:

.DEFAULT_GOAL := build

fmt:
	@go fmt ./...
.PHONY: fmt

lint: fmt
	golint ./...
.PHONY: lint

vet: fmt
	go vet ./...
.PHONY: vet

build: vet
	go build -o example1
.PHONY: build

Execute it with make.

Find a module

Visit pkg.go.dev to find a module.

Domain-Driven Design Project Structure

Source: GopherCon 2018 Kat Zien How Do You Structure Your Go Apps (https://www.youtube.com/watch?v=oL6JBUk6tj0)