webview_cookie_manager

Package Overview

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The webview_cookie_manager package provides comprehensive cookie management for Flutter apps using webviews on Android and iOS. It enables developers to read, write, delete, and manage cookies associated with web content rendered in webviews, ensuring seamless session handling and authentication. The package is designed to work directly with platform-specific webview implementations, offering a consistent API across platforms. Ideal for apps requiring persistent login states or integration with web-based services.

Use cases

Managing authentication sessions in webviews
Persisting user login state across app restarts
Syncing cookies between webview and backend services
Handling third-party login flows like OAuth
Automating form submissions with stored cookies

Key features

Cross-platform cookie management for Android and iOS
Support for reading and writing cookies in webviews
Integration with platform webview components
Simple API for common cookie operations
Secure storage of cookie data

Suitable for

Apps with embedded web content
Authentication-heavy applications
Web service integrations
Single sign-on (SSO) workflows
Mobile apps using web-based backends

Considerations

Requires proper permissions for webview access
Limited to webview-specific cookie contexts
May require additional setup for complex scenarios
Not suitable for general app-wide cookie management
Dependent on underlying platform webview implementation

Original README

Original README snapshot from the linked source repository. Visit the repository for the latest content.

Webview Cookie Manager

A flutter library to manager your web cookies for Android (API level 9+) and iOS (11+).

The cookies stores and retrieves using the httpCookieStore for iOS and CookieManager for Android.

Get started iOS

Set minimum version for iOS to 11.0

Usage

The WebCookieManager can be used directly or together with webview_flutter.

Get cookies

final cookieManager = WebviewCookieManager();

final gotCookies = await cookieManager.getCookies('https://youtube.com');
for (var item in gotCookies) {
  print(item);
}

Set a cookie

await cookieManager.setCookies([
              Cookie('cookieName', 'cookieValue')
                ..domain = 'youtube.com'
                ..expires = DateTime.now().add(Duration(days: 10))
                ..httpOnly = false
            ]);

Check is any cookie available

await cookieManager.hasCookies();

Remove a cookie

await cookieManager.removeCookie();

Clear cookies

await cookieManager.clearCookies();

Domain attribute

Domain attribute is not required according to RFC, but it is important to remember that empty domain causes undefined behavior. So it is highly reccommended to specify it this this way:

final cookie = Cookie('cookieName', 'cookieValue')..domain = 'youtube.com';

Secure attribute

If you see the error Strict Secure Cookie policy does not allow setting a secure cookie for http://your-domain.net/ for apps targeting >= R. Please either use the 'https:' scheme for this URL or omit the 'Secure' directive in the cookie value. Then you need to set the origin while setting the cookie, in that case setting the domain is not required.

final cookies = <Cookie>[];
// Add your cookie with secure flag to the array
cookieManager.setCookies(cookies, origin: 'https://your-domain.net')

Troubleshooting on iOS

Set minimum target iOS version to 11 (see also #17)
If you are using Objective C, check that PodFile have a flag use_frameworks (see also #4)

target 'Runner' do
  use_frameworks!
  use_modular_headers!
  ..........
end

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