Dart - Gzip

 

import 'dart:convert';
	import 'package:archive/archive.dart';
	class GZipUtils {
	/// http://www.txtwizard.net/compression
	/// string -> bytes -> gzip bytes -> base64 string
	static String encode(String str) {
	List<int> stringBytes = utf8.encode(str);
	List<int> gzipBytes = new GZipEncoder().encode(stringBytes);
	String base64String = base64.encode(gzipBytes);
	return base64String;
	}
	/// string <-- bytes <- gzip bytes <- base64
	static String decode(String encodedString) {
	var decodeBase64 = base64.decode(encodedString);
	List<int> gzipBytes = new List<int>.from(decodeBase64);
	List<int> listInt = new GZipDecoder().decodeBytes(gzipBytes);
	String origin = utf8.decode(listInt);
	return origin;
	}
	}