---
title: client
framework: foundation
role: symbol
role_heading: Instance Property
path: foundation/urlprotocol/client
---

# client

The object the protocol uses to communicate with the URL loading system.

## Declaration

```swift
var client: (any URLProtocolClient)? { get }
```

## See Also

### Getting protocol attributes

- [cachedResponse](foundation/urlprotocol/cachedresponse.md)
- [URLProtocolClient](foundation/urlprotocolclient.md)
- [request](foundation/urlprotocol/request.md)
- [task](foundation/urlprotocol/task.md)