Enable request aborting

[sitch]

It's rather useful (especially if filesizes are large), to be able to abort an upload

Just need to modify: https://github.com/ryanto/next-s3-upload/blob/master/packages/next-s3-upload/src/hooks/use-uploader.ts#L122

Looks like this:

let controller = new AbortController();
fetch(url, {
  signal: controller.signal
});
controller.abort()

Easiest is probably just to accept controller as an arg to .uploadToS3/2:

let controller = new AbortController();

uploadToS3(file, {endpoint: {request: {controller}})

controller.abort()

See: https://javascript.info/fetch-abort#using-with-fetch

However, better is likely to modularize the http lib in the event that a use-case prefers something other than fetch, like axios or request, etc.

A syntax like:

const { abort, progress, promise } = uploadToS3(file)

Would be breaking, but IMHO is a bit more natural in terms of being given access to both abort and the promise at the same execution point, and avoiding fetch specific details, and dependency injection.

[ryanto]

Thanks for the issue!

Having an abort controller for large file uploads is a great idea. I'd be happy to accept a PR that adds this. An abort controller can be supplied to lib-storage's Upload class on this line here: https://github.com/ryanto/next-s3-upload/blob/master/packages/next-s3-upload/src/hooks/use-s3-upload.tsx#L41

Right now this library use fetch for getting the signed credentials for uploading, but not for performing the upload. To do the upload we rely on lib-storage. I think at this point in time I don't have the bandwidth to have this library support multiple http clients.