We are developing an application with the Shopify POS SDK, and would like to CHECK/APPLY BALANCE of a loyalty/reward card with a barcode scanner (if attached to POS hardware). How do we use this scanned data as input into our application? I can NOT find an API for the supported barcode scanners. If the POS hardware is a portable device (iPhone or iPad), we would like the option of using the integrated camera. Likewise, I can't find an API. Does Shopify provide APIs for these devices, allowing us to input scanned data into our application?
At this time we don't offer an API through which you can access internal or external hardware such as the webcam or barcode scanners. Keep an eye on the change log for any future developments though. As someone who speaks to the dev community a lot, I hear requests for it often and pass the feedback along. I will do so again in this case.