Please keep in mind, existing API shall remain stable, but may be flagged deprecated.

@blizzz What exactly do you mean? Do not change already existent endpoint (keep it synchronous) but introduce v2/v3 for async tasks (even if this endpoints will be not in use on FE side)?

@blizzz What exactly do you mean? Do not change already existent endpoint (keep it synchronous) but introduce v2/v3 for async tasks (even if this endpoints will be not in use on FE side)?

Yes, exactly. The old ones can get the @deprecated annotation and point to the new method.

@blizzz I've reverted all changes to old endpoints. So they are completely untouched. Now we have also scheduleImportIn(Table|View) + scheduleImportUploadIn(Table|View). FE uses new endpoints.

Also it is possible to import uploaded files (app data used under the hood)

I will rebase current PR and fix conflicts once #1824 got merged. Because both of those 2 PRs changes import a lot. Let's go step by step

Thanks, I tested and the core async works. Only have 2 concerns:

* I never get notified that the upload is done. Where should I be seeing this? I have to refresh the page to see the created table, and I never get a notification

An activity log is created, but a push notification is useful. Can be added in a follow-up PR though.

* I still think that small tables should be created synchronously for better UX. We can have some threshold e.g 200 rows for which creating the table is fast enough to just do it.

This is a valid concern, and I expect that importing non big tables is at least a 50% scenario. Having to wait for it for 5min or such is perhaps degrading experience. We can also have a threshold by file size, but should play it safe indeed.

@blizzz @enjeck so, guys, I did changes requested by you. If import file is bigger than 4k cells we go async. Otherwise upload will be the same like it was before

Manually tested next scenarios:

• import small file to a table from file view
• import large file to a table from file view
• import small file to a table via file picker
• import large file to a table via file picker
• import small file to a table via file upload
• import large file to a table via file upload

feel free to test import to a view by yourselves 😉 .

Cypress tests were extended with scenarios for large file.

@enjeck fixed everything, please check and merge 🙏