Export interface for VideoDeviceInfo

[qidulak]

Interface VideoDeviceInfo that is returned by BarcodeScanner.getAllCameras() is not publicly exported, so I need to define it on my own, If I want to make some logic and further process this data. I believe, that Interfaces returned by all public methods should be exported for strongly typped app.

[Keillion]

We will consider your suggestion carefully.

Currently, you can simply implement your needs in this way.

let videoInfos: ReturnType<typeof BarcodeScanner.getAllCameras> = null;
let videoInfo: ReturnType<typeof BarcodeScanner.getAllCameras>[0] = null;
// assign later

[Keillion]

I tested, at least in dynamsoft-camera-enhancer@4.0.3 or dynamsoft-barcode-reader-bundle@10.2.1000, VideoDeviceInfo is exported.

import { VideoDeviceInfo } from 'dynamsoft-camera-enhancer';
// or
import { VideoDeviceInfo } from 'dynamsoft-barcode-reader-bundle';

[Keillion]

Oh, I know you use dynamsoft-javascript-barcode@9.

In dynamsoft-javascript-barcode@9.6.42, VideoDeviceInfo is exported.

You can consider upgrading to the latest version 9, which is mainly adapted for the latest iOS to improve camera selection.

[dobripet]

I did check dynamsoft-javascript-barcode@9.6.42 dbr.d.ts file. VideoDeviceInfo is declared there but missing in exports. So it cannot be referenced via import.

The workaround by return type needs to be tweaked as it is promise and that is kind of messy.

type VideoDeviceInfo = Awaited<ReturnType<BarcodeScanner['getAllCameras']>>[number];

But as you said VideoDeviceInfo import works for dynamsoft-camera-enhancer which comes with dynamsoft-javascript-barcode so I guess its fine to import it from there, thank you.