---
title: "readAttributeMACAddress(completionHandler:)"
framework: matter
role: symbol
role_heading: Instance Method
path: "matter/mtrbaseclusterwakeonlan-1dp5d/readattributemacaddress(completionhandler:)"
---

# readAttributeMACAddress(completionHandler:)

## Declaration

```swift
func readAttributeMACAddress(completionHandler: @escaping @Sendable (String?, (any Error)?) -> Void)
```

```swift
func readAttributeMACAddress() async throws -> String
```