---
title: keyEncodingStrategy
framework: foundation
role: symbol
role_heading: Instance Property
path: foundation/jsonencoder/keyencodingstrategy-swift.property
---

# keyEncodingStrategy

A value that determines how to encode a  type’s coding keys as JSON keys.

## Declaration

```swift
var keyEncodingStrategy: JSONEncoder.KeyEncodingStrategy { get set }
```

## See Also

### Customizing Encoding

- [outputFormatting](foundation/jsonencoder/outputformatting-swift.property.md)
- [JSONEncoder.OutputFormatting](foundation/jsonencoder/outputformatting-swift.struct.md)
- [JSONEncoder.KeyEncodingStrategy](foundation/jsonencoder/keyencodingstrategy-swift.enum.md)
- [userInfo](foundation/jsonencoder/userinfo.md)