codigo actual del servidor, con avances de joan

source_code/lib/helpers/file_helper.dart

@@ -0,0 +1,12 @@
+import 'dart:convert';
+import 'dart:io';
+
+class FileHelper {
+  static String getBase64FormateFile(String path) {
+    File file = File(path);
+    print('File is = ' + file.toString());
+    List<int> fileInByte = file.readAsBytesSync();
+    String fileInBase64 = base64Encode(fileInByte);
+    return fileInBase64;
+  }
+}