Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
tag: 0.4.0
Fetching contributors…

Cannot retrieve contributors at this time

57 lines (42 sloc) 1.746 kb

Clout

Clout is a library for matching Ring HTTP requests. It uses the same routing syntax as used by popular Ruby web frameworks like Ruby on Rails and Sinatra.

Usage

These following examples make use of the ring-mock library to generate Ring request maps.

user=> (use 'ring.mock.request 'clout.core)
nil
user=> (route-matches "/article/:title"
                      (request :get "/article/clojure"))
{:title "clojure"}
user=> (route-matches "/public/*"
                      (request :get "/public/style/screen.css"))
{:* "style/screen.css"}

Clout can also match absolute routes:

user=> (route-matches "http://subdomain.example.com/"
                      (request :get "http://subdomain.example.com/"))
{}

Clout supports both keywords and wildcards. Keywords (like ":title") will match any character but the following: / . , ; ?. Wildcards (*) will match anything.

If a route does not match, nil is returned:

user=> (route-matches "/products" "/articles")
nil

For additional performance, you can choose to pre-compile a route:

user=> (def user-route (route-compile "/user/:id"))
#'user/user-route
user=> (route-matches user-route (request :get "/user/10"))
{:user "10"}

When compiling a route, you can specify a map of regular expressions to use for different keywords. This allows more specific routing:

user=> (def user-route (route-compile "/user/:id" {:id #"\d+"}))
#'user/user-route
user=> (route-matches user-route (request :get "/user/10"))
{:user "10"}
user=> (route-matches user-route (request :get "/user/jsmith"))
nil
Jump to Line
Something went wrong with that request. Please try again.