I'm trying to get the response data as a string using the docs found here https://www.gnu.org/software/guile/manual/html_node/Web-Client.html.
The document mentions that http-request:
Returns two values: the response read from the server, and the response body as a string, bytevector, #f value, or as a port ....
However, its not clear to me how to actually extract the string value. I can get the port, but not a plain string as mentioned in the docs.
(define response
(http-request (string-append "http://localhost:" port "/save")
#:method 'POST
#:headers '((Content-Type . "application/json"))
#:streaming? #f
#:decode-body? #t
#:body (string->utf8 body)))
(response-body-port response)
The concept of multiple values in Guile (Scheme) is not common in other programming languages (ahead of its time :p).
You pointed out there are two return values. So let's get those two values. You can read more details here : https://www.gnu.org/software/guile/manual/guile.html#Multiple-Values
In the meantime, here is what I have tested using the Guile reference example :
(use-modules (web client))
(use-modules (ice-9 receive))
(receive (response-status response-body)
(http-request "http://www.gnu.org")
(display response-body))
I gave two "formal arguments" to receive
to bind to the two return values of http-request
. But I only use the second, aka response-body
(as a string to display) because it is the one you where looking for.
Hope it helps !
P.S: Guile hackers are more active in the Guile mailing list than on StackOverflow. I'm watching, but I'm not your best asset haha.
Happy hacking !