In Python I would do the following:
>>> q = urllib.urlencode({"q": "clojure url"})
>>> q
'q=clojure+url'
>>> url = "http://stackoverflow.com/search?" + q
>>> url
'http://stackoverflow.com/search?q=clojure+url'
How do I do all the encoding that's done for me above in Clojure? In other words, how do I do something akin to the following:
=> (build-url "http://stackoverflow.com/search" {"q" "clojure url"})
"http://stackoverflow.com/search?q=clojure+url"
This is the exact REPL equivalent of your python session, using clj-http.
user=> (require ['clj-http.client :as 'client])
nil
user=> (str "http://stackoverflow.com/search?"
user=* (client/generate-query-string {"q" "clojure url"}))
"http://stackoverflow.com/search?q=clojure+url"
but clj-http makes it even easier:
user=> (client/get "http://stackoverflow.com/search?"
user=* {:query-params {"q" "clojure url"}})
... <a lot of output, omitted to protect the innocent>...
assuming that you want to perform a GET request, that is.
For anyone still looking for this in 2021 - ring.util.codec/form-encode does this perfectly:
http://ring-clojure.github.io/ring-codec/ring.util.codec.html#var-form-encode