---
title: allKeys
framework: swift
role: symbol
role_heading: Instance Property
path: swift/keyeddecodingcontainer/allkeys
---

# allKeys

All the keys the decoder has for this container.

## Declaration

```swift
var allKeys: [KeyedDecodingContainer<K>.Key] { get }
```

## Discussion

Discussion Different keyed containers from the same decoder may return different keys here, because it is possible to encode with multiple key types which are not convertible to one another. This should report all keys present which are convertible to the requested type.