---
title: fieldKey
framework: applearchive
role: symbol
role_heading: Instance Property
path: applearchive/archiveheader/fieldkey-swift.property
---

# fieldKey

The field keys of the archive header.

## Declaration

```swift
var fieldKey: ArchiveHeader._FieldKeys { get }
```

## See Also

### Manipulating Fields

- [field(forKey:)](applearchive/archiveheader/field(forkey:).md)
- [ArchiveHeader.FieldKey](applearchive/archiveheader/fieldkey-swift.struct.md)
- [ArchiveHeader.Field](applearchive/archiveheader/field.md)
- [fieldType](applearchive/archiveheader/fieldtype-swift.property.md)
- [ArchiveHeader.FieldType](applearchive/archiveheader/fieldtype-swift.struct.md)
- [ArchiveHeader.FieldKeySet](applearchive/archiveheader/fieldkeyset.md)