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# WKHTTPCookieStoreObserver

The methods to adopt in an object that monitors changes to a webpage’s cookies.

```
@MainActor protocol WKHTTPCookieStoreObserver : NSObjectProtocol
```

## Overview

Adopt the methods of the [`WKHTTPCookieStoreObserver`](/documentation/WebKit/WKHTTPCookieStoreObserver) protocol to track changes to cookies associated with a webpage. To observe the actual cookie changes, call the [`add(_:)`](/documentation/WebKit/WKHTTPCookieStore/add(_:)) method of the [`WKHTTPCookieStore`](/documentation/WebKit/WKHTTPCookieStore) you use to manage cookies. When a cookie changes, the cookie store notifies all observers of the changes.

## Topics

### Responding to Cookie Changes

[`cookiesDidChange(in:)`](/documentation/WebKit/WKHTTPCookieStoreObserver/cookiesDidChange(in:))

Tells the delegate that the cookies in the specified cookie store changed.


---

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