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BluetoothRemoteGATTDescriptor

files/en-us/web/api/bluetoothremotegattdescriptor/index.md

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{{APIRef("Bluetooth API")}}{{SeeCompatTable}}{{SecureContext_Header}}

The BluetoothRemoteGATTDescriptor interface of the Web Bluetooth API provides a GATT Descriptor, which provides further information about a characteristic's value.

Instance properties

  • {{DOMxRef("BluetoothRemoteGATTDescriptor.characteristic")}} {{ReadOnlyInline}} {{Experimental_Inline}}
    • : Returns the {{DOMxRef("BluetoothRemoteGATTCharacteristic")}} this descriptor belongs to.
  • {{DOMxRef("BluetoothRemoteGATTDescriptor.uuid")}} {{ReadOnlyInline}} {{Experimental_Inline}}
    • : Returns the UUID of the characteristic descriptor, for example "00002902-0000-1000-8000-00805f9b34fb" for the Client Characteristic Configuration descriptor.
  • {{DOMxRef("BluetoothRemoteGATTDescriptor.value")}} {{ReadOnlyInline}} {{Experimental_Inline}}
    • : Returns the currently cached descriptor value. This value gets updated when the value of the descriptor is read.

Instance methods

  • {{DOMxRef("BluetoothRemoteGATTDescriptor.readValue()")}} {{Experimental_Inline}}
    • : Returns a {{JSxRef("Promise")}} that resolves to an {{JSxRef("ArrayBuffer")}} holding a duplicate of the value property if it is available and supported. Otherwise it throws an error.
  • {{DOMxRef("BluetoothRemoteGATTDescriptor.writeValue()")}} {{Experimental_Inline}}
    • : Sets the value property to the bytes contained in an {{JSxRef("ArrayBuffer")}} and returns a {{JSxRef("Promise")}}.

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}