cannot upload large files on web on debug mode

I was uploading a 620M vmware file to a local minio server, but it hangs without any information.

I can finish the uploading job on windows, but cannot on web.

A debug build of a Flutter web app is unoptimised, and the browser also keeps
the whole payload in memory, so large uploads are slow or run out of memory in
debug. Build with flutter build web --release and the difference is large.

For the transfer itself, use a multipart upload with a small part size so the
browser streams the data instead of buffering it.

This ships in zuraffa_minio — the maintained fork of this package, which upstream has not touched since August 2025.

The fork keeps the API of the original package unchanged, so moving over is an import swap:

// before
import 'package:minio/minio.dart';
// after
import 'package:zuraffa_minio/minio.dart';

Source, the changelog and the sweep of the open issues of this tracker: https://github.com/arrrrny/zuraffa_minio

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cannot upload large files on web on debug mode #60

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cannot upload large files on web on debug mode #60

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guchengxi1994 commented on Dec 12, 2022

arrrrny commented on Oct 22, 2026

arrrrny commented on Oct 22, 2026

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