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    <p>Here's a recipe that's work great for me while developing Ring applications:</p> <ul> <li>Ensure you have leiningen support properly configured for your projet (do it once if in doubt): <ul> <li>in the package explorer, select the project, and invoke the contextual command <code>Leiningen &gt; Reset configuration</code></li> <li>then also invoke the <code>Leiningen &gt; Update dependencies</code> command</li> <li>you should see a <code>Leiningen Dependencies</code> virtual node in your project, referencing the direct and transitive dependencies of your project</li> </ul></li> <li>Select the <code>asdf.handler</code> file, right click and then <code>Debug as &gt; Clojure Application</code></li> <li>Open the <code>asdf.handler</code> namespace in an editor</li> <li>With the cursor currently still in the editor, type <code>Ctrl+Alt+N</code> to jump to the REPL and switch the REPL's current namespace to <code>asdf.handler</code> at the same time</li> <li>Start the app by typing <code>(app)</code> + <code>Enter</code> (or <code>Ctrl+Enter</code> if your cursor is not at the end of the line)</li> </ul> <p>You can now navigate between the editors and the REPL.</p> <ul> <li>To send editor content to the REPL, select it, and hit <code>Ctrl+Enter</code></li> <li>If you hit <code>Ctrl+Enter</code> without a selection, the whole 'top level expression' (e.g. a defn) will be sent to the REPL</li> <li>To resend the whole file to the REPL, type <code>Ctrl+Alt+S</code></li> <li>the whole list of keyboard shortcuts specific to CCW is here: <a href="http://code.google.com/p/counterclockwise/wiki/EditorKeyBindingsFeatures" rel="noreferrer">http://code.google.com/p/counterclockwise/wiki/EditorKeyBindingsFeatures</a></li> </ul> <p>Note that a future version of Counterclockwise will integrate a little bit more with Leiningen 2, but as it currently stands, the very nature of developing <code>ring</code> applications make it not so painful to bootstrap things as described above, IMHO</p>
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    1. POHow to run/debug compojure web app via counterclockwise (or la clojure)
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    1. COWhen typing `(app)` I get `ArityException Wrong number of args (0) passed to: cookies$wrap-cookies$fn clojure.lang.AFn.throwArity (AFn.java:437)`.
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    2. COOh yes, sorry : `app` is just the main handler, it's not the server. You need to create a function for starting your server, something like `(defn start [] (run-jetty #'app {:join? false}))` , and don't forget to add a require to your namespace : `(:require [ring.adapter.jetty :only [run-jetty]])`. And thus it is `(start)` that you must call, not `(app)`
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    3. COAlmost, I was getting `Could not locate ring/adapter/jetty__init.class or ring/adapter/jetty.clj on classpath` error that way, but then I found this link on compojure's wiki and following section II solved it: https://github.com/ring-clojure/ring/wiki/Interactive-Development
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