<!--
{
  "availability" : [
    "iOS: 16.0.0 -",
    "iPadOS: 16.0.0 -",
    "macCatalyst: 16.1.0 -",
    "macOS: 13.0.0 -",
    "tvOS: 16.0.0 -",
    "visionOS: 1.0.0 -",
    "watchOS: 9.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "Matter",
  "identifier" : "/documentation/Matter/MTRDeviceControllerServerProtocol/readAttribute(withController:nodeId:endpointId:clusterId:attributeId:params:completion:)",
  "metadataVersion" : "0.1.0",
  "role" : "Instance Method",
  "symbol" : {
    "kind" : "Instance Method",
    "modules" : [
      "Matter"
    ],
    "preciseIdentifier" : "c:objc(pl)MTRDeviceControllerServerProtocol(im)readAttributeWithController:nodeId:endpointId:clusterId:attributeId:params:completion:"
  },
  "title" : "readAttribute(withController:nodeId:endpointId:clusterId:attributeId:params:completion:)"
}
-->

# readAttribute(withController:nodeId:endpointId:clusterId:attributeId:params:completion:)

```
func readAttribute(withController controller: Any?, nodeId: UInt64, endpointId: NSNumber?, clusterId: NSNumber?, attributeId: NSNumber?, params: [String : Any]?, completion: @escaping @Sendable (Any?, (any Error)?) -> Void)
```

```
func readAttribute(withController controller: Any?, nodeId: UInt64, endpointId: NSNumber?, clusterId: NSNumber?, attributeId: NSNumber?, params: [String : Any]?) async throws -> Any
```

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)