Database Reference
In-Depth Information
Creating HTML with Hiccup
In the last recipe, we set up a server and returned some data. However, most people want
to view HTML, not JSON. In this recipe, we'll take a look at Hiccup (
https://github.com/
weavejester/hiccup
)
. This is a library that allows you to build web pages from Clojure
expressions and data structures. It takes vectors, maps, keywords, and strings—or functions
that return these—and turns them into HTML. This is a good solution for generating HTML from
within Clojure web applications.
This recipe will build on the
Serving data with Ring and Compojure
recipe. I'll point out where
you need to change or add things from that recipe, highlighting them as necessary. By the end
of this recipe, we'll be serving a simple index page along with the census dataset.
Getting ready
First, we'll use the same dependencies in our
project.clj
ile as we did in the last recipe,
plus one more. Here's the full list:
:dependencies [[org.clojure/clojure "1.6.0"]
[ring/ring-core "1.3.1"]
[ring/ring-jetty-adapter "1.3.1"]
[compojure "1.2.0"]
[hiccup "1.0.5"]]
We'll also add Hiccup to the namespace declaration, as shown here:
(ns web-viz.web
(:require [compojure.route :as route]
[compojure.handler :as handler])
(:use compojure.core
ring.adapter.jetty
[ring.middleware.content-type :only (wrap-content-type)]
[ring.middleware.file :only (wrap-file)]
[ring.middleware.file-info :only (wrap-file-info)]
[ring.middleware.stacktrace :only (wrap-stacktrace)]
[ring.util.response :only (redirect)]
[hiccup core element page]
[hiccup.middleware :only (wrap-base-url)
]))
