A simple OAuth 1.0/a, 2.0 consumer client for Clojure built on top of clj-http.
This is a work-in-progress as well as my first foray into Clojure...use at your own risk.
Using Accord is easy and straight forward:
;; We'll be using a popular OAuth 2.0 provider for this example
(require '[accord.oauth2 :as oauth2])
;; You don't have to use Cheshire, but we'll parse the JSON with it in this
;; example
(require '[cheshire.core :refer [parse-string]])
;; Get a real client id and secret from:
;;
;; https://developers.facebook.com/apps
;;
(def client-id "440483442642551")
(def client-secret "cd54f1ace848fa2a7ac89a31ed9c1b61")
(def authorize-url "https://graph.facebook.com/oauth/authorize")
(def access-token-url "https://graph.facebook.com/oauth/access_token")
(def redirect-uri "https://www.facebook.com/connect/login_success.html")Now we have some basic constants we can use to seed our client with.
(def fb (oauth2/service client-id
client-secret
authorize-url
access-token-url
:base-url "https://graph.facebook.com/"))Great! At this point we should construct an authorization URL and ask our user to visit it.
(oauth2/make-authorize-url fb {:scope "read_stream"
:response_type "code"
:redirect_uri redirect-uri})
; => "https://graph.facebook.com/oauth/authorize?client_id=..."Typically the redirect URI would direct the user back to your application. On this redirect we would find a code parameter, assuming the user authorized our application. Once we obtain that code parameter's value we can get an access token.
(oauth2/get-access-token fb {:query-params {:code code
:redirect_uri redirect-uri}})Because the fb var is a ref, calling this function updates the proper
access-token field associated with the ref. From this point we can make
authenticated requests with the provider. In other words, we have an accord
with the provider.
(require '[accord.http :as http]) ;; require our HTTP client wrapper
(def user (parse-string (:body (http/get fb "me")) true))
(println "currently logged in as: " (:name user))
; => "currently logged in as: Foo Bar"Copyright © 2013 Max Countryman
Distributed under the BSD License.
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