---
title: "addAuthorizationChallengeHeader(_:length:)"
framework: foundation
role: symbol
role_heading: Instance Method
path: "foundation/nsmutabledictionary/addauthorizationchallengeheader(_:length:)"
---

# addAuthorizationChallengeHeader(_:length:)

## Declaration

```swift
func addAuthorizationChallengeHeader(_ inHeaderData: UnsafeRawPointer!, length inHeaderDataLength: UInt32) -> OBEXError
```