File download: stream response is not working

#1

What seems to be the problem:
I am trying to make a streamed download and got a feeling that streamed download is not supported by Livewire at all.

Steps to Reproduce:
Export large amount of data as a stream:

    return response()->streamDownload(function () use($ids, $filename) {
                    $options = new \ZipStream\Option\Archive();
                    $options->setSendHttpHeaders(false);
                    $zip = new \ZipStream\ZipStream($filename, $options);
                    Media::whereIn('id', $ids)->select('id', 'original_name', 'data')->chunk(10, function($medias) use ($zip){
                        foreach ($medias as $media) {
                              $zip->addFile($media->original_name, $media->data);
                        }
                    });
                    $zip->finish();
                }, $filename);

Are you using the latest version of Livewire:
yes

#2

Hey, @Dimonka2

Any output?

#3

Actually I just got new output: On local machine (localhost) Firefox crashes, if the zip file is huge (I guess it tries to load it into memory).
On remote server request gets interrupted and page reloads.

#4

Have you tried to download simple file (e.g. image) to make that the problem came from the download method not from the zipping process?

#5

It works with a few documents, but if I start to download like over 100MB, then those issues happens. I moved this method to a controller and it is working. The problem of Livewire is that the download first coming to a JS function and loaded into memory. Thus it is not possible to download something big out of Livewire component.

#6

Aha! it make sense now.

I don’t know how but. If there is way to chunk the downloaded data while streaming it, it will be a good idea.

But the simple is good. if you can do it with the normal controller it is a good idea though.

Glade your issue was solved and I learnt something new today from you :slight_smile: