Accessing array in Json Data with Clojurescript - clojurescript

Question

I am new Clojurescript and want to hack arround with clojurescript and electron based on an small json file.
I am doing something like (with transit/cljs)
(def jsondata (t/read (t/reader :json) (.readFileSync fs path_to_file "utf8")))) )
first I check if status is ok, that works fine...
(let [json_status (get jsondata "status")]
(.log js/console "JSON Glossar Status:" json_status))
now, how can I access one of the maps in the pages array, or step through the map?
{"status":"ok",
"pages":[
{
"id":1,
"name":"name1",
"image":"imagename1.png",
"children":[
{
"id":1,
"copytext":"kdjsldjsljfl"
},
{
"id":2,
"copytext":"dksdöfksöfklsöf"
}
]
},
{
"id":2,
"name":"name1",
"image":"imagename1.png",
"children":[
{
"id":4,
"copytext":"kdjsldjsljfl"
},
{
"id":5,
"copytext":"dksdöfksöfklsöf"
}
]
}
]
}

Answer 1

You can use aget (i.e. "array get") for nested ClojureScript / JavaScript interop.
For example, if you wanted to access the second map item in your "pages" array, you could do this:
(def my-js-object
(clj->js {:status "ok"
:pages [{:id 1
:name "foo"
:children []}
{:id 2
:name "bar"
:children []}]}))
(aget my-js-object "pages" 1)
In the above code I'm simply using clj->js to construct a notional (and incomplete) representation of your JSON; I hope this is enough to make sense.
My REPL output was:
#js {:id 2, :name "bar", :children #js []}
If you wanted to do something more complex with each page item, e.g. "map over each page hashmap and pull out the name values", then you could make use of the .- JS property accessor
(->> (.-pages my-js-object)
(map #(.-name %)))
REPL output:
("foo" "bar")

Answer 2

To not answer the question, you could use
js->cljs, https://cljs.github.io/api/cljs.core/js-GTclj, to turn your json into a normal Clojure data structure and use Clojures normal fns to extract the data you want.