package encodings import ( "encoding/base64" "strings" ) func GetUpperString(phrase string) string { return strings.ToUpper(phrase) } func Base64Encode(data string) string { return base64.StdEncoding.EncodeToString([]byte(data)) } func Base64Decode(data string) (string, error) { decoded, err := base64.StdEncoding.DecodeString(data) return string(decoded), err }