package main import ( "log" "os" "github.com/joho/godotenv" ) var Config struct { Mode string Host string BaseURL string } func loadEnv(key string, defaultValue ...string) string { env := os.Getenv(key) if len(defaultValue) > 0 && env == "" { env = defaultValue[0] } log.Printf("Environment variable %s = %q", key, env) return env } func init() { // Setup logger log.SetFlags(log.Lshortfile | log.Ltime | log.Ldate) // Load Config godotenv.Load() Config.Mode = loadEnv(os.Getenv("MODE"), "development") Config.Host = loadEnv(os.Getenv("HOST"), ":4000") Config.BaseURL = loadEnv(os.Getenv("HOST"), "http://localhost:4000") }