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library
Multi-format 1D/2D barcode image processing library, usable in JavaScript ecosystem. (by zxing-js)
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SurveyJS
Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
I am currently working on a project with implementations that are very similar. I went with zxing-js, which is a js port of the app written in java. seems to grab most barcodes, although the documentation for js is slim to none. I had to manually go through some of the code to understand even what functions were available to me. So far so good, I would recommend: https://github.com/zxing-js/library