CookieJar

A cookie manager for http requests in Dart, help you to deal with the cookie policies and persistence.

Get started

Checkout the Migration Guide for breaking changes between versions.

Add dependency

You can use the command to add dio as a dependency with the latest stable version:

$ dart pub add cookie_jar

Or you can manually add cookie_jar into the dependencies section in your pubspec.yaml:

dependencies:
  cookie_jar: ^replace-with-latest-version

The latest version is: The latest version including pre-releases is:

Usage

A simple usage example:

import 'package:cookie_jar/cookie_jar.dart';

void main() async {
  final cookieJar = CookieJar();
  List<Cookie> cookies = [Cookie('name', 'wendux'), Cookie('location', 'china')];
  // Saving cookies.
  await cookieJar.saveFromResponse(Uri.parse('https://pub.dev/'), cookies);
  // Obtain cookies.
  List<Cookie> results = await cookieJar.loadForRequest(Uri.parse('https://pub.dev/paths'));
  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 cookie container and manager for HTTP requests.

DefaultCookieJar

DefaultCookieJar is a default cookie manager which implements the standard cookie policy declared in RFC. It saves the cookies in the memory, all cookies will be cleared after the app exited.

To use it:

final cookieJar = 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.

To use it:

// Cookie files will be saved in files in "./cookies/4/"
final cookieJar = PersistCookieJar(
  ignoreExpires: true, // Save/load even cookies that have expired.
);

Note: When using the [FileStorage] in Flutter apps, use path_provider to obtain available directories.

Directory tempDir = await

getTemporaryDirectory();

final tempPath = tempDir.path;
final cookieJar = PersistCookieJar(
  ignoreExpires: true,
  storage: FileStorage(tempPath),
);

Storage

You can customize your own storage by extending Storage, see FileStorage for more details.

APIs

Future saveFromResponse(Uri uri, List cookies);

Save the cookies for specified uri.

Future<List> loadForRequest(Uri uri);

Load the cookies for specified uri.

Future delete(Uri uri, [bool withDomainSharedCookie = false])

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

If withDomainSharedCookie is true , all domain-shared cookies will be deleted.

Future deleteAll();

Delete all cookies.

Working with HttpClient

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

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

Working with dio

dio is a powerful HTTP client for Dart/Flutter, which supports global configuration, interceptors, FormData, request cancellation, file uploading/downloading, timeout, and custom adapters etc. dio also supports to manage cookies with cookie_jar using dio_cookie_manager. For example:

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

void main() async {
  final dio = Dio();
  final cookieJar = CookieJar();
  dio.interceptors.add(CookieManager(cookieJar));
  await dio.get('https://pub.dev/');
  // Print cookies
  print(await cookieJar.loadForRequest(Uri.parse('https://pub.dev/')));
  // Another request with the cookie.
  await dio.get("https://pub.dev/");
}

More details about dio.

Copyright & License

The project and it's underlying projects are originally authored by @wendux with the organization @flutterchina since 2018.

The project consents the MIT license.