utilities/Env/env.go

package Env

import (
	"log"
	"os"
	"strconv"
	"strings"
)

type EnvironmentVariable string

func (v EnvironmentVariable) GetName() string {
	return string(v)
}

func (v EnvironmentVariable) GetEnvString(fallback string) string {
	if value, ok := os.LookupEnv(string(v)); ok {
		return value
	}

	return fallback
}

func (v EnvironmentVariable) GetEnvBool(fallback bool) bool {
	value, ok := os.LookupEnv(string(v))

	if !ok {
		return fallback
	}

	value = strings.ToLower(value)
	trueValues := []string{"1", "true"}

	for _, x := range trueValues {
		if value == x {
			return true
		}
	}

	return false
}

func (v EnvironmentVariable) GetEnvInt(key string, fallback int64) int64 {
	if value, ok := os.LookupEnv(key); ok {
		i, err := strconv.ParseInt(value, 10, 64)

		if err != nil {
			log.Fatal(err)
		}

		return i
	}

	return fallback
}