---
title: "readAttributeBSSID(completion:)"
framework: matter
role: symbol
role_heading: Instance Method
path: "matter/mtrbaseclusterwifinetworkdiagnostics/readattributebssid(completion:)"
---

# readAttributeBSSID(completion:)

## Declaration

```swift
func readAttributeBSSID(completion: @escaping @Sendable (Data?, (any Error)?) -> Void)
```

```swift
func readAttributeBSSID() async throws -> Data
```