Web Development with Clojure, 2nd Edition

Defining Resources

Liberator uses the concept of resources to interact with the client. The resources are simply Ring-compliant handlers that can be used inside your Compojure routes. These resources are defined using the resource and the defresource macros. We need to reference these functions in the liberator-service.handler namespace in order to start working with Liberator.

(ns liberator-service.handler
  (:require ...
   [liberator.core :refer [defresource resource]]))

Now we can replace our routes definition with a resource, as follows:

liberator-snippets/home.clj

(defroutes routes
   (ANY "/" request
     (resource
       :handle-ok home-page
       :etag "fixed-etag"
       :available-media-types ["text/html"])))

Note that we’re using the ANY ...