获取信息

Question

I have the following ClojureScript code to make a POST request:

(defn perform-post [resource]
  "Performs a post and returns the body :)"
  (go (let [response (<! (http/post resource))]
        (:body response))))

When I make a call to a resource which returns a number

(js/console.log (perform-post post-create-recipe-url))

This prints:

buf
Object { buf={...}, n=1, cljs$lang$protocol_mask$partition0$=2,
more...}
buf
Object { head=1, tail=0, length=1, meer...} arr

["6276677237104933520", undefined]

I want to obtain the "6276677237104933520" (the post body) information as a "return" value.

How can I accomplish this? I tried <!! but it does not work since it is not defined.

Answer 1

Blocking semantics ( <!! ) is not available on ClojureScript platform.

You can retrieve value from a channel only within go block:

(go (js/console.log (<! (perform-post post-create-recipe-url))))