npm i gia-tools-encoding-base64 --save
var giaenc = require("gia-tools-encoding-base64");
var myencodedString = giaenc.encode_fileToBase64String(myfile);
var encodedObjectProp = giaenc.encode_fileToBase64JSONStringify(myfile,"myjsonprop");
var decodedData = giaenc.decode_base64_to_string(base64String,myoutputfile);