Add ability to lazy load each component individually

[axelthat]

Is your feature request related to a problem? Please describe.
File Uploader is a huge component for someone that only wants to use the minimal uploader with minimal functionalities. Thus, being able to lazy load each component individually would boost the initial page load performance by a lot.

Describe the solution you'd like
Add ability to lazy load each component individually

Describe alternatives you've considered
No alternatives but would love to do something like this:

await Promise.all([
    import('@uploadcare/file-uploader/abstract/defineComponents'),
    import('@uploadcare/file-uploader/blocks/FileUploaderMinimal/FileUploaderMinimal'),
    import('@uploadcare/file-uploader/blocks/BaseComponent/BaseComponent'),
    import('@uploadcare/file-uploader/blocks/DropArea/DropArea'),
    import('@uploadcare/file-uploader/blocks/Config/Config'),
    import('@uploadcare/file-uploader/blocks/Copyright/Copyright'),
    import('@uploadcare/file-uploader/blocks/UploadList/UploadList'),
    import('@uploadcare/file-uploader/blocks/ActivityHeader/ActivityHeader'),
    import('@uploadcare/file-uploader/blocks/StartFrom/StartFrom'),
    import('@uploadcare/file-uploader/blocks/Icon/Icon'),
    import('@uploadcare/file-uploader/blocks/FileItem/FileItem'),
    import('@uploadcare/file-uploader/blocks/ProgressBar/ProgressBar')
])

[nd0ut]

Hey @axelthat,

This might not be exactly what you're looking for, but you can import a prebuilt minimal uploader bundle like this:

import * as UC from "@uploadcare/file-uploader/web/uc-file-uploader-minimal.min.js";
import "@uploadcare/file-uploader/web/uc-file-uploader-minimal.min.css";

UC.defineComponents(UC);

It's about 30kb smaller (gzip) than the full bundle, including CSS.

As for lazy loading, we’ve been considering lazy-loading specific parts of the uploader, like the Cloud Image Editor. It’s pretty big and can even be disabled in the regular mode, but it’s not on the roadmap yet, so no ETA for now.

Also, if you're using a modern framework with support for component lazy loading, feel free to use it.