config

func Attach ¶

func Attach(config *viper.Viper, input interface{}) error

Attach attaches the config to all fields of the provided struct. The input must be a pointer to a struct. To attach a config to a field, the field must be of attachable interface and be exported.

func Decode ¶

func Decode(input interface{}, output interface{}) error

Decode takes a struct as input end transforms the Value fields into the output struct fields. It uses mapstructure to decode the map into the output struct. It is important to remember that the input field's key should be the same as the `config` tag of the output field. Example:

type config struct {
	ApiKey Value[string]
}
type concreteConfig struct {
	ApiKey string `config:"api_key"`
}
var cfg config = config{
	ApiKey: config.String("api_key"),
}
var concreteCfg concreteConfig
err := Flatten(cfg, &concreteCfg)

func Traverse ¶

func Traverse(input interface{}, f func(AnyValue) error) error

Traverse traverses the input struct recursively and calls the provided function for each AnyValue field. It stops if the function returns an error. Input must be a pointer to a struct or a struct.