BluetoothRemoteGATTDescriptor

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

Experimental:This is anexperimental technology
Check theBrowser compatibility table carefully before using this in production.

Secure context: This feature is available only insecure contexts (HTTPS), in some or allsupporting browsers.

TheBluetoothRemoteGATTDescriptor interface of theWeb Bluetooth API provides a GATT Descriptor,which provides further information about a characteristic's value.

Instance properties

BluetoothRemoteGATTDescriptor.characteristicRead onlyExperimental: Returns the BluetoothRemoteGATTCharacteristic this descriptor belongsto.
BluetoothRemoteGATTDescriptor.uuidRead onlyExperimental: Returns the UUID of the characteristic descriptor, forexample"00002902-0000-1000-8000-00805f9b34fb" for the ClientCharacteristic Configuration descriptor.
BluetoothRemoteGATTDescriptor.valueRead onlyExperimental: Returns the currently cached descriptor value. This value gets updated when thevalue of the descriptor is read.

Instance methods

BluetoothRemoteGATTDescriptor.readValue()Experimental: Returns a Promise that resolves toanArrayBuffer holding a duplicate of thevalue propertyif it is available and supported. Otherwise it throws an error.
BluetoothRemoteGATTDescriptor.writeValue()Experimental: Sets the value property to the bytes contained in an ArrayBuffer andreturns aPromise.

Specifications

Specification
Web Bluetooth # bluetoothgattdescriptor-interface

Browser compatibility

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This page was last modified on⁨Sep 24, 2024⁩ byMDN contributors.

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