This feature is not Baseline because it does not work in some of the most widely-used browsers.
Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
The BluetoothRemoteGATTDescriptor interface of the Web Bluetooth API provides a GATT Descriptor, which provides further information about a characteristic's value.
BluetoothRemoteGATTDescriptor.characteristic Read only Experimental
Returns the BluetoothRemoteGATTCharacteristic this descriptor belongs to.
BluetoothRemoteGATTDescriptor.uuid Read only Experimental
Returns the UUID of the characteristic descriptor, for example '00002902-0000-1000-8000-00805f9b34fb' for theClient Characteristic Configuration descriptor.
BluetoothRemoteGATTDescriptor.value Read only Experimental
Returns the currently cached descriptor value. This value gets updated when the value of the descriptor is read.
BluetoothRemoteGATTDescriptor.readValue() Experimental
Returns a Promise that resolves to an ArrayBuffer holding a duplicate of the value property if it is available and supported. Otherwise it throws an error.
BluetoothRemoteGATTDescriptor.writeValue() Experimental
Sets the value property to the bytes contained in an ArrayBuffer and returns a Promise.
| Specification |
|---|
| Web Bluetooth # bluetoothgattdescriptor-interface |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | ||
BluetoothRemoteGATTDescriptor |
70Linux support is not enabled by default.57–70Only supported on macOS. |
79Linux support is not enabled by default. |
No |
57Linux support is not enabled by default.44–57Only supported on macOS. |
No | 57 | No | 44 | No | 7.0 | No | |
characteristic |
57 | 79 | No | 44 | No | 57 | No | 44 | No | 7.0 | No | |
readValue |
57 | 79 | No | 44 | No | 57 | No | 44 | No | 7.0 | No | |
uuid |
57 | 79 | No | 44 | No | 57 | No | 44 | No | 7.0 | No | |
value |
57 | 79 | No | 44 | No | 57 | No | 44 | No | 7.0 | No | |
writeValue |
57 | 79 | No | 44 | No | 57 | No | 44 | No | 7.0 | No | |
© 2005–2023 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/BluetoothRemoteGATTDescriptor