Clojure and Python Flask

[Pascal Dutilleul]

Does somebody has experience serving ClojureScript (Re-Frame) through Python Flask? Or even better integrating a Clojure app within an existing Flask app ? I need to add a new module to an existing Flask app and I’d like at least the frontend to be ClojureScript. What are the possibilities?

Kind regards,
Pascal

[alexandr...@gmail.com]

This shouldn't be a problem - you can send all Flask responses as JSON and it will work fine in CLJS.

From Flask, have a look at https://stackoverflow.com/questions/13081532/return-json-response-from-flask-view

In Clojurescript, use for instance https://github.com/r0man/cljs-http to read the JSON responses.

So something like this in your cljs:

(defn http-get-dispatch [request]
(go (let [response (<! (http/get (:url request)))]
(rf/dispatch (conj (:dispatch-key request) (:body response))))))

(rf/reg-fx :http-get-dispatch http-get-dispatch)

(rf/reg-event-fx
:your-request
(fn [{:keys [db]} [_ x1 x2]] 
{:http-get-dispatch {:url (str "your-server-url?x1=" x1 "&x2=" x2)
:dispatch-key [:your-client-db-key]}}))

(rf/reg-event-db
:your-client-db-key
(fn [db [_ data]] (assoc db :your-client-db-key data)))