On Sunday, 4 December 2016 15:11:55 UTC, Jonathon McKitrick wrote:
>
> That being said, I see the benefits in moving to namespace qualified keys.
> Currently, I'm returning structures directly in Compojure handlers, and the
> JSON conversion is implicitly handled. I checked Cheshire and didn't
> immediately see a way to generate namespaced keys. What's the best way to
> do this?
>
parse-string takes a second argument that converts from a JSON string key
to whatever you want for your clojure key - see 3rd example in
https://github.com/dakrone/cheshire#decoding
So you could have something like:
(ns chtst.core
(:require [cheshire.core :refer [parse-string]]
[clojure.pprint :refer [pprint]])
(:gen-class))
(def fields { "name" ::name, "age" ::age})
(defn -main
[& args]
(let [example (parse-string "{\"name\":\"fred\", \"age\":29}" fields)]
(pprint example)))
However this doesn't produce good results if your JSON contains a key you
haven't listed in fields - so you'd probably have to write an actual
function to do the mapping.
Does that help?
Pete
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