# MTRCommissioningDelegate ``` protocol MTRCommissioningDelegate : NSObjectProtocol ``` ## Topics ### Instance Methods [`func commissioning(MTRCommissioningOperation, completedDeviceAttestation: MTRDeviceAttestationDeviceInfo, error: (any Error)?, completion: () -> Void)`](/documentation/Matter/MTRCommissioningDelegate/commissioning(_:completedDeviceAttestation:error:completion:)) Notification that device attestation has completed. [`func commissioning(MTRCommissioningOperation, failedWithError: any Error, metrics: MTRMetrics)`](/documentation/Matter/MTRCommissioningDelegate/commissioning(_:failedWithError:metrics:)) Notification that commissioning has failed. [`func commissioning(MTRCommissioningOperation, needsThreadCredentialsWithScanResults: [MTRNetworkCommissioningClusterThreadInterfaceScanResultStruct]?, error: (any Error)?, completion: (Data) -> Void)`](/documentation/Matter/MTRCommissioningDelegate/commissioning(_:needsThreadCredentialsWithScanResults:error:completion:)) Callback that gets called for a commissionee that supports Thread if Thread network commissioning is required and an operational dataset was not provided in MTRCommissioningParameters. [`func commissioning(MTRCommissioningOperation, needsWiFiCredentialsWithScanResults: [MTRNetworkCommissioningClusterWiFiInterfaceScanResultStruct]?, error: (any Error)?, completion: (Data, Data?) -> Void)`](/documentation/Matter/MTRCommissioningDelegate/commissioning(_:needsWiFiCredentialsWithScanResults:error:completion:)) Callback that gets called for a commissionee that supports Wi-Fi if Wi-Fi network commissioning is required and Wi-Fi credentials were not provided in MTRCommissioningParameters. [`func commissioning(MTRCommissioningOperation, read: MTRCommissioneeInfo)`](/documentation/Matter/MTRCommissioningDelegate/commissioning(_:read:)) Callback that gets called after various information (product identity, optionally endpoint structure information, optionally other attributes that were requested) has been read from the commissionee. [`func commissioning(MTRCommissioningOperation, succeededForNodeID: NSNumber, metrics: MTRMetrics)`](/documentation/Matter/MTRCommissioningDelegate/commissioning(_:succeededForNodeID:metrics:)) Notification that commissioning has succeeded. [`func commissioning(MTRCommissioningOperation, succeededForNodeID: NSNumber, metrics: MTRMetrics, context: [String : Any])`](/documentation/Matter/MTRCommissioningDelegate/commissioning(_:succeededForNodeID:metrics:context:)) Notification that commissioning has succeeded. [`func commissioningProvisionedNetworkCredentials(MTRCommissioningOperation)`](/documentation/Matter/MTRCommissioningDelegate/commissioningProvisionedNetworkCredentials(_:)) Notification that network credentials have been successfully communicated to the commissionee and it’s going to try to join that network. Note that for commissionees that are already on-network this notification will not happen. [`func commissioningStartingNetworkScan(MTRCommissioningOperation)`](/documentation/Matter/MTRCommissioningDelegate/commissioningStartingNetworkScan(_:)) Notification that a network scan is starting. This will only happen if a network scan is performed during commissioning. ## Relationships ### Inherits From [`NSObjectProtocol`](/documentation/ObjectiveC/NSObjectProtocol) --- Copyright © 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)