Bluetooth.requestDevice()

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This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.

The Bluetooth.requestDevice() method of the Bluetooth interface returns a Promise to a BluetoothDevice object with the specified options. If there is no chooser UI, this method returns the first device matching the criteria.

Syntax

Bluetooth.requestDevice(options).then(function(bluetoothDevice) { ... })

Returns

A Promise to a BluetoothDevice object.

Parameters

options 
An object that sets options for the device request. The available options are:
  • filters[]: An array of BluetoothScanFilters. This filter consists of an array of  BluetoothServiceUUIDs, a name parameter, and a namePrefix parameter.
  • optionalServices[]: An array of BluetoothServiceUUIDs.
  • acceptAllDevices: A Boolean indicating that the requesting script can accept all Bluetooth devices. The default is false.

Example

// Discovery options match any devices advertising:
// . The standard heart rate service.
// . Both 16-bit service IDs 0x1802 and 0x1803.
// . A proprietary 128-bit UUID service c48e6067-5295-48d3-8d5c-0395f61792b1.
// . Devices with name "ExampleName".
// . Devices with name starting with "Prefix".
//
// And enables access to the battery service if devices
// include it, even if devices do not advertise that service.
let options = {
  filters: [
    {services: ['heart_rate']},
    {services: [0x1802, 0x1803]},
    {services: ['c48e6067-5295-48d3-8d5c-0395f61792b1']},
    {name: 'ExampleName'},
    {namePrefix: 'Prefix'}
  ],
  optionalServices: ['battery_service']
}

navigator.bluetooth.requestDevice(options).then(function(device) {
  console.log('Name: ' + device.name);
  // Do something with the device.
})
.catch(function(error) {
  console.log("Something went wrong. " + error);
});

Detailed examples are in the specification.

Specifications

Specification Status Comment
Web Bluetooth
The definition of 'requestDevice()' in that specification.
Draft Initial definition.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 56     43  
Feature Android Webview Chrome for Android Firefox Mobile (Gecko) Firefox OS IE Mobile Opera Mobile Safari Mobile
Basic support No support 56       43  

Document Tags and Contributors

 Contributors to this page: styfle, jpmedley, scheib, rolfedh
 Last updated by: styfle,