Function ParseValueOr

binder_generic.go:393–403

ParseValueOr parses value to generic type, when value is empty defaultValue is returned. Types that are supported: - bool - float32 - float64 - int - int8 - int16 - int32 - int64 - uint - uint8/byte - uint16 - uint32 - uint64 - string - echo.BindUnmarshaler interface - encoding.TextUnmarshaler inte

(value string, defaultValue T, opts ...any)

//   - time.Duration
//   - time.Time use echo.TimeOpts or echo.TimeLayout to set time parsing configuration
func ParseValueOr[T any](value string, defaultValue T, opts ...any) (T, error) {
	if len(value) == 0 {
		return defaultValue, nil
	}
	var tmp T
	if err := bindValue(value, &tmp, opts...); err != nil {
		var zero T
		return zero, fmt.Errorf("failed to parse value, err: %w", err)
	}
	return tmp, nil
}

func bindValue(value string, dest any, opts ...any) error {
	// NOTE: if this function is ever made public the dest should be checked for nil