Re: [Chicken-users] Problem with http-client egg sample code

[Mario Domenech Goulart]

Hi Ulas,

On Thu, 24 May 2012 13:40:43 +0200 Ulas Türkmen <address@hidden> wrote:

> For my next side project, I wanted to use Chicken to improve my
> knowledge of Scheme, and to see how fast Chicken scheme can get. I
> installed Chicken on my Mac (Snow Leopard) by compiling from source,
> since the Macports version gave segmentation faults on installing
> eggs. Afterwards, I installed the http egg (specifically, this one:
> http://wiki.call-cc.org/eggref/3/http), and copied the test code for
> the client into the file test.scm, whose contents look like this:
>
> #!/usr/local/bin/csi -s
> (require-extension http-client)
>
> (define-values (h a i o) (http:send-request "http://google.com";))
>
> (pretty-print (http:read-body a i))
> (close-input-port i)
> (close-output-port o)
>
>
> Afterwards, I ran ./test.scm in the command line, and got the
> following error output:
>
> Error: unbound variable: http:send-request
>
>       Call history:
>
>       make-string     
>       make-parameter  
>       <syntax>          (define-values (h a i o) (http:send-request 
> "http://google.com";))
>       <syntax>          (##sys#call-with-values (##core#lambda ()
> (http:send-request "http://google.com";)) (##core#lambda (h......
>       <syntax>          (##core#lambda () (http:send-request 
> "http://google.com";))
>       <syntax>          (##core#begin (http:send-request "http://google.com";))
>       <syntax>          (http:send-request "http://google.com";)
>       <syntax>          (##core#lambda (h176 a177 i178 o179) (##core#set! h 
> h176)
> (##core#set! a a177) (##core#set! i i178) ...
>       <syntax>          (##core#begin (##core#set! h h176) (##core#set! a 
> a177)
> (##core#set! i i178) (##core#set! o o179))
>       <syntax>          (##core#set! h h176)
>       <syntax>          (##core#set! a a177)
>       <syntax>          (##core#begin (##core#set! i i178) (##core#set! o 
> o179))
>       <syntax>          (##core#set! i i178)
>       <syntax>          (##core#set! o o179)
>       <eval>    (##sys#call-with-values (##core#lambda () (http:send-request
> "http://google.com";)) (##core#lambda (h......
>       <eval>    (http:send-request "http://google.com";)       <--
>
>
> What am I doing wrong here?

It seems that you are using an egg from CHICKEN version 3, which is
pretty old and not maintained anymore.  The /eggref/3 part in the URL
indicates that it is a CHICKEN 3 egg.

The current major version is 4.  You can get it from
http://code.call-cc.org

Check http://wiki.call-cc.org/eggref/4/http-client for the http-client
for version 4 of CHICKEN.

You can install it with:

    $ chicken-install http-client

`chicken-install' is the egg management tool for version 4.  If you have
`chicken-setup', you have a CHICKEN version 3.

I hope that helps.


Best wishes.
Mario
-- 
http://parenteses.org/mario