---
title: "CFHTTPAuthenticationCopyRealm(_:)"
framework: cfnetwork
role: symbol
role_heading: Function
path: "cfnetwork/cfhttpauthenticationcopyrealm(_:)"
---

# CFHTTPAuthenticationCopyRealm(_:)

Gets an authentication information’s namespace.

## Declaration

```swift
func CFHTTPAuthenticationCopyRealm(_ auth: CFHTTPAuthentication) -> Unmanaged<CFString>
```

## Parameters

- `auth`: The CFHTTPAuthentication object to examine.

## Return Value

Return Value The namespace, if there is one; otherwise NULL. Ownership follows the The Create Rule.

## Discussion

Discussion Some authentication methods provide a namespace, and it is usually used to prompt the user for a name and password.

## See Also

### HTTP Authentication

- [CFHTTPAuthentication](cfnetwork/cfhttpauthentication.md)
- [CFHTTPAuthenticationAppliesToRequest(_:_:)](cfnetwork/cfhttpauthenticationappliestorequest(_:_:).md)
- [CFHTTPAuthenticationCopyDomains(_:)](cfnetwork/cfhttpauthenticationcopydomains(_:).md)
- [CFHTTPAuthenticationCopyMethod(_:)](cfnetwork/cfhttpauthenticationcopymethod(_:).md)
- [CFHTTPAuthenticationCreateFromResponse(_:_:)](cfnetwork/cfhttpauthenticationcreatefromresponse(_:_:).md)
- [CFHTTPAuthenticationGetTypeID()](cfnetwork/cfhttpauthenticationgettypeid().md)
- [CFHTTPAuthenticationIsValid(_:_:)](cfnetwork/cfhttpauthenticationisvalid(_:_:).md)
- [CFHTTPAuthenticationRequiresAccountDomain(_:)](cfnetwork/cfhttpauthenticationrequiresaccountdomain(_:).md)
- [CFHTTPAuthenticationRequiresOrderedRequests(_:)](cfnetwork/cfhttpauthenticationrequiresorderedrequests(_:).md)
- [CFHTTPAuthenticationRequiresUserNameAndPassword(_:)](cfnetwork/cfhttpauthenticationrequiresusernameandpassword(_:).md)
- [kCFHTTPAuthenticationAccountDomain](cfnetwork/kcfhttpauthenticationaccountdomain.md)
- [kCFHTTPAuthenticationPassword](cfnetwork/kcfhttpauthenticationpassword.md)
- [kCFHTTPAuthenticationSchemeBasic](cfnetwork/kcfhttpauthenticationschemebasic.md)
- [kCFHTTPAuthenticationSchemeDigest](cfnetwork/kcfhttpauthenticationschemedigest.md)
- [kCFHTTPAuthenticationSchemeKerberos](cfnetwork/kcfhttpauthenticationschemekerberos.md)