Serializing a Clojure Object

I lied. In the last post I said I show how to serialize a Clojure Object to JSON. We’re not going to do that. It turns out that there’s a much better way when you’re using Clojure on the server and ClojureScript in the browser: you convert the clojure data structure to a string and then you eval it on the other end.

Here’s the data structure we’re going to serialize:

{:done false, :task "Write a ClojureScript webapp"}

In the handler, we’re going to add a new route to respond to GET /task.

(GET "/task" [] (pr-str {:task "Write a ClojureScript webapp" :done false}))

That’s it! You just call pr-str, and the data structure get’s converted to a string that can be eval’d (more on that later).

As always, this code is available on Github.

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• clojure 3
• clojurescript 1