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web server interface for Ocaml ( like rack, wsgi, ...)?
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Date: -- (:)
From: Gerd Stolpmann <info@g...>
Subject: Re: [Caml-list] web server interface for Ocaml ( like rack, wsgi, ...)?
Am Dienstag, den 21.09.2010, 20:20 +0100 schrieb Richard Jones:
> On Tue, Sep 21, 2010 at 09:50:36AM +0200, ben kuin wrote:
> > > what's wrong with simply proxying the HTTP connections through your favorite webserver to the backend ocsigen/ocamlnet server?
> > 
> > Nothing per se. I've tried so set something up with ocsigen, but I had
> > to give up. There seems to be a certain philosophy behind it how you
> > should writing web apps.
> > 
> > But I just wanted to do something:
> > -  small ( one page app )
> > -  quick and dirty ( no big setup upfront, no compilation)
> > -  deployment, by dropping a (ocaml script) into a webroot, not matter
> > what webserver is running
> > - permissive license ( mit, ...)
> 
> > 
> >  ~~~~ from wikipedia ~~~~
> > require 'rack'
> > app = Rack::Builder.app do
> >   lambda do |env|
> >     body = "Hello, World!"
> >     [200, {"Content-Type" => "text/plain", "Content-Length" =>
> > body.length.to_s}, [body]]
> >   end
> > end
> 
> This ought to work, and it's pretty simple ...
> 
> -----
> #!/usr/bin/ocamlrun ocaml
> print_string "\
> Content-Type: text/plain
> 
> Hello, World!"
> -----
> 
> 'course the problem is you'll be wanting to parse parameters, cookies
> and the rest of it, and there it does get a little bit more
> complicated.
> 
> I'm fairly sure ocamlnet can write standalone scripts like that?  Gerd??


#! /opt/godi-3.11/bin/ocamlrun  /opt/godi-3.11/bin/ocaml

#use "topfind";;
#require "netcgi2";;

open Netcgi

let () =
  Netcgi_cgi.run
    ~output_type:(`Direct "")
    (fun cgi ->
       let body = "Hello, World!" in
       cgi # set_header 
	 ~content_type:"text/plain"
	 ~content_length:(String.length body)
	 ();
       cgi # out_channel # output_string body;
       cgi # out_channel # commit_work()
    )

Gerd
-- 
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Gerd Stolpmann, Bad Nauheimer Str.3, 64289 Darmstadt,Germany 
gerd@gerd-stolpmann.de          http://www.gerd-stolpmann.de
Phone: +49-6151-153855                  Fax: +49-6151-997714
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