Draft: idk wtf was modified

utils/udp.go

@@ -64,13 +64,21 @@ func ListenUDP(
 func SendPayload(endpoint, data string) error {
 	conn, err := net.Dial("udp", endpoint)
 	if err != nil {
-		return fmt.Errorf("failed to dial endpoint")
+		return fmt.Errorf("failed to dial endpoint, %w", err)
 	}
 	defer conn.Close()
 
-	_, err = conn.Write([]byte(data))
+	b, err := msgpack.Marshal(UDPPayload{
+		MagicNumber: MAGIC_NUMBER,
+		Data:        data,
+	})
 	if err != nil {
-		return fmt.Errorf("failed to send payload")
+		return fmt.Errorf("failed to marshal payload, %w", err)
+	}
+
+	_, err = conn.Write(b)
+	if err != nil {
+		return fmt.Errorf("failed to send payload, %w", err)
 	}
 
 	return nil