Hi Sean,
Even weirder .... when I tried this morning your string-append solution
- which I had left in place - worked immediately with no changes from
last night. The only thing different is I had closed DrRacket before
going to bed and reopened it this morning. Maybe something was wonky in
DrRacket? It had been running about ~14 hours yesterday at the point I
started having trouble and I fought with it a couple more hours before
quitting? But AFAICR, I've never seen that before.
However, as you discovered also, passing the data as #:data doesn't work
and now I'm interested in why. ISTM that the URI + #:data should be
identical to the string-append with "?" and #:method #"GET".
Also, Google recommends using POST if the data is sensitive, but I can't
get POST to work even from a pure HTML form in a browser.
So now I'm really curious as to what's going on.
Thanks for your help,
George
On 4/21/2015 3:39 AM, Sean Kanaley wrote:
Hi George,
I'm not sure then -- I am in Racket 6.1.1. Here is the source that
worked for me:
#lang racket
(require net/http-client
net/uri-codec)
(define (lookup address)
(let [
(form-data (alist->form-urlencoded
(list (cons 'address address)
)))
(response #f)
(lat #f)
(long #f)
]
(printf "Looking up ~s~n" address)
(printf "=> ~s~n" form-data)
(with-handlers [
(exn:fail?
(lambda (e)
3; (fprintf (ferr) "~n~n%%~n~a~n%%~n" (format
"Error: ~a" (exn-message e)))
))
]
(let-values [
((errcode header port)
(http-sendrecv "maps.googleapis.com
<http://maps.googleapis.com>"
(string-append
"http://maps.googleapis.com/maps/api/geocode/json?"; form-data)
;#:ssl? ssl?
;#:port port
#:version #"1.1"
#:method #"GET"
#:headers (list "Content-Type:
application/x-www-form-urlencoded")
;#:data form-data
;#:content-decode decodes
))
]
(set! response (port->string port))
;(set! response (read-json port))
(printf "=> ~s~n" response)
))
;(fprintf (ferr) "lat:~s long:~s~n" lat long )
(values lat long)
))
----------------------------------------------------------------------------
(I commented out the fprintfs to avoid dealing with ferr.)
It won't work if #:data is uncommented. I hope that helps, otherwise
I'm stuck too.
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