There's nothing that a normal Web app can do that Racket can't. Whatever you see in the UI is just HTML + JS. The exact same HTML and JS will work in Racket as well. The actual upload code is something like:
<form action="upload.cgi" enctype="multipart/form-data" method="post"> <input type="file" name="datafile" size="40"> <input type="submit" value="Send"> </form> And on the server you will get a binding:file object: http://docs.racket-lang.org/web-server/http.html?q=form%3Afile#%28def._%28%28lib._web-server%2Fhttp%2Frequest-structs..rkt%29._binding~3afile%29%29 The drag&drop into the box sounds to me like it is just done by your browser when you use a "file" input, as above. Jay On Fri, Aug 1, 2014 at 9:35 AM, Andrew Dudash <drewdud...@gmail.com> wrote: > There's the following. > > #lang web-server/insta > > (require web-server/formlets) > > (define (start req) > (send/formlet (file-upload))) > > But this doesn't support dragging and dropping images. You can add support > for that with JavaScript, but I don't think there's anything like it in a > Racket library. (I'd love to be proven wrong if anyone knows of one.) > > > > On Thu, Jul 31, 2014 at 10:21 PM, Mitchell Wand <w...@ccs.neu.edu> wrote: >> >> Many web pages have an "upload file" button that allows the user to >> drag&drop a file onto the button, and then hitting the button sends the file >> to the server. >> >> Is there any way of doing this in a Racket web server? If not, how close >> can we come? >> >> --Mitch >> >> >> ____________________ >> Racket Users list: >> http://lists.racket-lang.org/users >> > > > ____________________ > Racket Users list: > http://lists.racket-lang.org/users > -- Jay McCarthy http://jeapostrophe.github.io "Wherefore, be not weary in well-doing, for ye are laying the foundation of a great work. And out of small things proceedeth that which is great." - D&C 64:33 ____________________ Racket Users list: http://lists.racket-lang.org/users
