2024-12-10 ring | Clojure Slack Archive

ring

itaied 2024-12-10T15:45:54.631229Z

hey all i'm trying to convert a clj map to x-www-form-urlencoded for stripe api

(form-encode {:success_url ""
                :line_items [{:price_data {:currency "USD"
                                           :product_data {:name "product 1"}}
                              :quantity 1}]
                :mode "payment"})
; => "success_url=&line_items=price_data=currency=USD&product_data=name=product+1&quantity=1&mode=payment"

expected (a bit of mismatch on the values):

curl  \
  -u "***:" \
  --data-urlencode success_url="" \
  -d "line_items[0][price]"=price_1MotwRLkdIwHu7ixYcPLm5uZ \
  -d "line_items[0][quantity]"=2 \
  -d mode=payment

it ignores the vector do you know of any encoding that can transform a clojure map into this Stripe api?

weavejester 2024-12-10T18:16:16.406879Z

Form encoding doesn't have a canonical nested format, Stripe is just using a convention. You'll need to convert your nested map into a flat map first, then encode it. I don't know of any library that does this, but there may be one out there.

weavejester 2024-12-10T18:29:09.956149Z

Here's a quick function I put together that flattens the data structure using the above convention:

(defn flatten-nested [m]
  (letfn [(keys->str [[k1 & ks]]
            (apply str k1 (for [k ks] (str "[" k "]"))))
          (assoc-nested [ks]
            (fn [m k v]
              (let [ks (conj ks (if (keyword? k) (name k) (str k)))]
                (if (coll? v)
                  (reduce-kv (assoc-nested ks) m v)
                  (assoc m (keys->str ks) v)))))]
    (reduce-kv (assoc-nested []) {} m)))

🙌 1

itaied 2024-12-10T19:12:22.697789Z

thanks! i have found that http-kit has a built in for that (a pretty new one) https://clojurians.slack.com/archives/C01ALH5JGRJ/p1733843309270729

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