http-client egg and authentication

[Christian Himpe]

Dear All,

I am exploring the use of the http-client egg ( 
http://wiki.call-cc.org/eggref/5/http-client ) for communicating with a 
database server. For this I need some basic authentication, which I did not get 
to work. I tried including:

(determine-username/password (lambda (uri realm) (values "myuser" "mypass")))

(see http://wiki.call-cc.org/eggref/5/http-client#authentication-support ), 
which returns a 403 (Forbidden). However, authenticated communication works 
with the server from the shell with "curl" using the argument "--user 
myuser:mypass" ( https://curl.se/docs/manpage.html#-u ).

I assume I am missing, overlooking or doing something wrong here. Does somebody 
have experience with this, or know some sample code?

Thank You

Christian