CookieJar

A cookie manager for http requests in Dart, by which you can deal with the complex cookie policy and persist cookies easily.

Add dependency

dependencies:
  cookie_jar: 3.0.1

Usage

A simple usage example:

import 'package:cookie_jar/cookie_jar.dart';
void main() async {
  List<Cookie> cookies = [Cookie("name", "wendux"),Cookie("location", "china")];
  var cj = CookieJar();
  //Save cookies   
  await cj.saveFromResponse(Uri.parse("https://www.baidu.com/"), cookies);
  //Get cookies  
  List<Cookie> results = await cj.loadForRequest(Uri.parse("https://www.baidu.com/xx"));
  print(results);  
}    
       

Classes

SerializableCookie

This class is a wrapper for Cookie class. Because the Cookie class doesn't support Json serialization, for the sake of persistence, we use this class instead of it.

CookieJar

CookieJar is a default cookie manager which implements the standard cookie policy declared in RFC. CookieJar saves the cookies in RAM, so if the application exit, all cookies will be cleared. A example as follow:

var cj= CookieJar();

PersistCookieJar

PersistCookieJar is a cookie manager which implements the standard cookie policy declared in RFC. PersistCookieJar persists the cookies in files, so if the application exit, the cookies always exist unless call delete explicitly. A example as follows:

// Cookie files will be saved in files in "./cookies"
var cj = PersistCookieJar(
    ignoreExpires:true, //save/load even cookies that have expired.
);

Note: In Flutter, File system is different from PC, you can use path_provider package to get the path :

// API `getTemporaryDirectory` is from "path_provider" package.
Directory tempDir = await getTemporaryDirectory();
var tempPath = tempDir.path;
var cj = PersistCookieJar(
          ignoreExpires: true,
          storage: FileStorage(tempPath)
        );

Storage

Now, You can customize your own storage，for more details refer to the implementation of FileStorage

APIs

Future

Save the cookies for specified uri.

Future<List

Load the cookies for specified uri.

Future

Delete cookies for specified uri. This API will delete all cookies for the uri.host, it will ignored the uri.path.

If withDomainSharedCookie is true , will delete the domain-shared cookies.

Future

Delete all cookies 。

Working with HttpClient

Using CookieJar or PersistCookieJar manages HttpClient 's request/response cookies is very easy:

var cj=CookieJar();
...
request = await httpClient.openUrl(options.method, uri);
request.cookies.addAll(await cj.loadForRequest(uri));
response = await request.close();
await cj.saveFromResponse(uri, response.cookies);

Working with dio

dio is a powerful Http client for Dart, which supports Interceptors, Global configuration, FormData, File downloading, Timeout etc. And dio supports to manage cookies with cookie_jar, the simple example is:

import 'package:dio/dio.dart';
import 'package:dio_cookie_manager/dio_cookie_manager.dart';
import 'package:cookie_jar/cookie_jar.dart';

main() async {
  var dio = Dio();
  var cookieJar=CookieJar();
  dio.interceptors.add(CookieManager(cookieJar));
  await dio.get("https://baidu.com/");
  // Print cookies
  print(await cookieJar.loadForRequest(Uri.parse("https://baidu.com/")));
  // second request with the cookie
  await dio.get("https://baidu.com/");
}

Note: cookieJar 3.0 need:

• dio version >= 4.0
• dio_cookie_manager >= 3.0

More details about dio see : https://github.com/flutterchina/dio .

Copyright & License

This open source project authorized by https://flutterchina.club , and the license is MIT.

Features and bugs

Please file feature requests and bugs at the issue tracker.