goloadenv

func FormatString ¶

func FormatString(config interface{}) string

TODO maybe an extra tag that ensures a field is not printed, handy for passwords for example

func LoadEnv ¶

func LoadEnv(config interface{}) error

LoadEnv loads environment variables into the provided config struct. It uses the "env" struct tag to determine which environment variable corresponds to each field. If an environment variable is not found, and it does not have a default value provided in the tag, it returns an error.

Example:

type DBConfig struct {
  Host     string `env:"DB_HOST"`
  Port     int    `env:"DB_PORT"`
  User     string `env:"DB_USER;default:user"`
  Password string `env:"DB_PASSWORD;default:password"`
}

type Config struct {
  Port     float64 `env:"PORT;default:8080"`
  LogLevel string  `env:"LOG_LEVEL;optional"`
  DB       DBConfig
}

func LoadConfig() error {
  cfg := Config{}
  err := config.LoadEnv(&cfg)
  if err != nil {
    return err
  }
  fmt.Printf("Config: %+v\n", cfg)
  return nil
}

func main() {
  err := godotenv.Load(".env")
  if err != nil {
    	return cfg, fmt.Errorf("could not load environment files: %w", err)
  }
  err := LoadConfig()
  if err != nil {
    fmt.Printf("Error loading config: %v\n", err)
    return
  }
}

TODO: allow for format string defaults, function return defaults?

func RegisterEnvType ¶

func RegisterEnvType[T EnvTypeInterface]()

func SetOracle ¶ added in v1.0.0

func SetOracle(oracleFunc func(string) string)

func UnmarshalEnvSlogLevel ¶

func UnmarshalEnvSlogLevel(string string) (interface{}, error)