Skip to content


Subversion checkout URL

You can clone with
Download ZIP
Fetching contributors…
Cannot retrieve contributors at this time
54 lines (36 sloc) 1.75 KB


An interactive problem website for Clojure beginners

State of the Art

This site is in a very early stage of development, so there is not a lot of polish yet. Anyone interested in contributing should check out the Issues page for ideas on what to work on.

Setup instructions for running locally

  • Download and install leiningen.
  • Download and install mongodb.
  • The project uses clojail, which requires a security policy setup in your home directory (because Clojure's eval is unsafe if used improperly). Set up a file called .java.policy in your home directory. The contents should look vaguely like this:

    grant { permission; };

    but see the readme of that project for more details.

  • cd to the 4clojure project directory and run lein deps.

  • Start up your mongodb, if you don't have autostart:

  • For the first time use, you will need to load the problem data. Run the script

  • Run lein ring server and the browser should open for you.

    lein ring server


Problem sources:


The source code for 4clojure is available under the Eclipse Public License v 1.0. For more information, see LICENSE.html.

Jump to Line
Something went wrong with that request. Please try again.