first commit

utils/encoder.go

@@ -0,0 +1,31 @@
+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
+}