Using the config struct in Go

main.go

package main

import (
    "fmt"
    "log"

    "github.com/joho/godotenv"
    "github.com/craicoverflow/go-environment-variables-example/config"
)

// init is invoked before main()
func init() {
    // loads values from .env into the system
    if err := godotenv.Load(); err != nil {
	log.Print("No .env file found")
    }
}

func main() {
    conf := config.New()

    // Print out environment variables
    fmt.Println(conf.GitHub.Username)
    fmt.Println(conf.GitHub.APIKey)
}