package utils import ( "encoding/base64" "fmt" "io" "os" "strings" ) // mp3ToBase64 reads an MP3 file and returns its base64-encoded content func Mp3ToBase64(filePath string) (string, error) { file, err := os.Open(filePath) if err != nil { return "", fmt.Errorf("failed to open MP3 file: %v", err) } defer file.Close() // Verify file is an MP3 if !strings.HasSuffix(strings.ToLower(filePath), ".mp3") { return "", fmt.Errorf("file is not an MP3: %s", filePath) } data, err := io.ReadAll(file) if err != nil { return "", fmt.Errorf("failed to read MP3 file: %v", err) } encoded := base64.StdEncoding.EncodeToString(data) return encoded, nil }