Hi Ali,

`navigator.hid.requestDevice` would need to be called inside a chrome
extension page for granting the device to the extension. Please refer to
https://github.com/GoogleChrome/chrome-extensions-samples/tree/main/functional-samples/sample.co2meter
for an example.

Best Regards
Jack


On Sun, Sep 17, 2023 at 6:57 AM Ali Zarei <[email protected]> wrote:

> Hi there,
> Calling navigator.hid.requestDevice in service worker is not possible, so
> what is correct way of requesting a device?
>
> On Friday, February 17, 2023 at 1:59:14 AM UTC+3:30 Tarek ElBahnasawy
> wrote:
>
>> Contact [email protected], [email protected]
>> Explainerwebhid/WEBHID_IN_EXTENSION_SERVICE_WORKERS_EXPLAINER.md at main
>> <https://github.com/WICG/webhid/blob/main/WEBHID_IN_EXTENSION_SERVICE_WORKERS_EXPLAINER.md>
>> SpecificationWebHID API <https://wicg.github.io/webhid/>
>> SummaryAllows web developers to use WebHID API when responding to
>> extension events by exposing WebHID API to Service Workers registered by
>> browser extensions. This API will not yet be exposed to Service Workers
>> registered by sites but the implementation experience gained by supporting
>> the API for extensions will be valuable for such a future project.
>> Blink componentBlink
>> <https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink>>HID
>> MotivationAs Chrome Apps APIs will soon be deprecated
>> <https://developer.chrome.com/docs/apps/migration/>, developers are
>> encouraged to migrate to web apps or Chrome Extensions. For the Chrome
>> Extension case, Manifest V3 deprecates the background page and requires
>> developers to migrate to service workers
>> <https://developer.chrome.com/docs/extensions/mv3/migrating_to_service_workers/>.
>> As a result, it is required to support WebHID in Extension Service Workers.
>> RisksInteroperability and CompatibilityGecko: No signal, we have asked
>> for a position on WebHID in extensions (WebHID (Human Interface Device)
>> API · Issue #459 · mozilla/standards-positions · GitHub
>> <https://github.com/mozilla/standards-positions/issues/459#issuecomment-1162459878>
>> ).
>> WebKit: No signal, opposed to the Web Serial API in general.
>> Web developers: Extension developers previously used WebHID and other
>> device APIs from the background page and have requested that it continues
>> to be available after migrating to Manifest V3.
>> Other signals: Extension team approves of exposing these APIs to
>> extension service workers. (
>> https://docs.google.com/document/d/1s01BVkz-mb18p-gwXmzhM6DdioOh0JMzx_kCJzsLd7U/edit
>> <https://docs.google.com/document/d/1s01BVkz-mb18p-gwXmzhM6DdioOh0JMzx_kCJzsLd7U/edit?usp=sharing>,
>> internal-only)
>> WebView application risksN/A. WebHID isn’t available on Android.
>> DebuggabilityDevtools
>> Is this feature fully tested by web-platform-tests
>> <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>
>> ?No, testing for Extensions is covered by Chrome browser tests but the
>> WebHID API in general is fully tested by web-platform-tests.
>> Flag namechrome://flags/#enable-web-hid-on-extension-service-worker
>> Requires code in //chrome?Yes
>> Tracking bughttps://bugs.chromium.org/p/chromium/issues/detail?id=1303195
>> Launch bug
>>
>> https://launch.corp.google.com/launch/4200800 (sorry, Googlers only)
>>
>> Estimated milestones112
>> Link to entry on the Chrome Platform Status
>> https://chromestatus.com/feature/6305751386554368
>>
>> --
>> Tarek
>>
>

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