---
title: allHTTPHeaderFields
framework: foundation
role: symbol
role_heading: Instance Property
path: foundation/nsurlrequest/allhttpheaderfields
---

# allHTTPHeaderFields

A dictionary containing all of the HTTP header fields for a request.

## Declaration

```swift
var allHTTPHeaderFields: [String : String]? { get }
```

## See Also

### Related Documentation

- [allHTTPHeaderFields](foundation/nsmutableurlrequest/allhttpheaderfields.md)

### Getting header fields

- [value(forHTTPHeaderField:)](foundation/nsurlrequest/value(forhttpheaderfield:).md)