envconfig

func Read ¶

func Read[T any](holder *T, lookupEnv func(string) (string, bool)) error

Read reads the environment variables using lookupEnv function and assigns values to the Holder struct. If lookupEnv is not provided, os.LookupEnv is used. There are the following struct tags: - env:"-" - skips field - env:"NAME" - sets environment name to look for - prefix:"NAME" - sets prefix for embedded structs Types can implement the following interfaces to support custom values: - encoding.TextUnmarshaler - encoding.BinaryUnmarshaler - json.Unmarshaler