I don't mean to muddy the waters but there is a conversation going on about the :ZipDownloadLimit that comes into play here: https://groups.google.com/d/msg/dataverse-community/V1gExuDnm0A/nR4FIU1QBgAJ .Just something to be conscious of.

The Dataverse API absolutely does allow you to ask the Dataverse server to zip up a bunch of files by passing a comma-separated list of database IDs for files: http://guides.dataverse.org/en/4.18.1/api/dataaccess.html#multiple-file-bundle-download

You could also create the zip file client side, but this is more work (though easier on the server). You'd need to get the file hierarchy from the directoryLabel field in the metadata: https://dev2.dataverse.org/api/datasets/export?exporter=dataverse_json&persistentId=doi%3A10.5072/FK2/V8C0XO

Thanks @pdurbin -- yes, aware of the file zip limit discussion, but at least I'm using this with QDR where we have a more generous limit.

The Dataverse API absolutely does allow you to ask the Dataverse server to zip up a bunch of files by passing a comma-separated list of database IDs for files: http://guides.dataverse.org/en/4.18.1/api/dataaccess.html#multiple-file-bundle-download

Yes, that's what I was referring to and the linked code in get_file() actually implements that, it just never gets called (I think)

@adam3smith ah, I just clicked and I see what you mean:

    fileid <- paste0(fileid, collapse = ",")
    u <- paste0(api_url(server), "access/datafiles/", file)

Yes, that should do the trick, if it gets called. 😄

Ah got it -- this is possible in principle using a numeric vector (as one would expect), but there's a regression from 5ec375b that missed one of the file --> fileid

I'll submit a PR with added documentation, test, and fix