The version of the web-server that will be included with Racket 7.6
changes the way file uploads are handled so that they get offloaded to
disk after a certain threshold (similar to how that nginx module you
linked to works).

You can check out the pre-release docs for details:


To get these changes ahead of the release, you should be able to install
an updated version of `web-server-lib' from the package server or from git.

Hope that helps!

- Bogdan

Brian Adkins writes:

> I'm posting a file to my web app using the following form:
> <form accept-charset="UTF-8" action="@(url-for 'upload-contacts
> (organization-id org-obj))"
>       method="post" *enctype="multipart/form-data"*
> class="file-upload-form">
> ...
> </form>
> I use a simple function to create a hashtable of attributes:
> (define (form-values req)
>   (for/hash ([ b (in-list (request-bindings/raw req)) ])
>     (cond [ (binding:form? b) (values
>                                (bytes->string/utf-8 (binding-id b) #\space)
>                                (bytes->string/utf-8 (binding:form-value b)
> #\space)) ]
>           [ (binding:file? b) (values
>                                (bytes->string/utf-8 (binding-id b) #\space)
>                                (binding:file-content b)) ])))
> It appears that the entire file contents are in the binding by the time the
> request is available to me. This is fine for "small enough" files, but for
> larger files, it would be great to be able to stream the file contents. The
> solution may be to use something like nginx's upload module:
> But before I go down that route, I thought I'd ask if the Racket web server
> provides a more direct way to accomplish this.
> Thanks,
> Brian

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