msuchodolski · August 25, 2014 21:46 · Jun 7, 2012 · Jun 7, 2012
diff --git a/endpoints.php b/endpoints.php
@@ -2,7 +2,7 @@
 /*
 Plugin Name: WP_Rewrite endpoints demo
 Description: A plugin giving example usage of the WP_Rewrite endpoint API
-Plugin URI: http://make.wordpress.org/plugins/
+Plugin URI: http://make.wordpress.org/plugins/2012/06/07/rewrite-endpoints-api/
 Author: Jon Cave
 Author URI: http://joncave.co.uk/
 */

diff --git a/endpoints.php b/endpoints.php
@@ -0,0 +1,48 @@
+<?php                                                                                                                                                                                          
+/*
+Plugin Name: WP_Rewrite endpoints demo
+Description: A plugin giving example usage of the WP_Rewrite endpoint API
+Plugin URI: http://make.wordpress.org/plugins/
+Author: Jon Cave
+Author URI: http://joncave.co.uk/
+*/
+
+function makeplugins_endpoints_add_endpoint() {
+        // register a "json" endpoint to be applied to posts and pages
+        add_rewrite_endpoint( 'json', EP_PERMALINK | EP_PAGES );
+}
+add_action( 'init', 'makeplugins_endpoints_add_endpoint' );
+
+function makeplugins_endpoints_template_redirect() {
+        global $wp_query;
+
+        // if this is not a request for json or it's not a singular object then bail
+        if ( ! isset( $wp_query->query_vars['json'] ) || ! is_singular() )
+                return;
+
+        // output some JSON (normally you might include a template file here)
+        makeplugins_endpoints_do_json();
+        exit;
+}
+add_action( 'template_redirect', 'makeplugins_endpoints_template_redirect' );
+
+function makeplugins_endpoints_do_json() {
+        header( 'Content-Type: application/json' );
+
+        $post = get_queried_object();
+        echo json_encode( $post );
+}
+
+function makeplugins_endpoints_activate() {
+        // ensure our endpoint is added before flushing rewrite rules
+        makeplugins_endpoints_add_endpoint();
+        // flush rewrite rules - only do this on activation as anything more frequent is bad!
+        flush_rewrite_rules();
+}
+register_activation_hook( __FILE__, 'makeplugins_endpoints_activate' );
+
+function makeplugins_endpoints_deactivate() {
+        // flush rules on deactivate as well so they're not left hanging around uselessly
+        flush_rewrite_rules();
+}
+register_deactivation_hook( __FILE__, 'makeplugins_endpoints_deactivate' );