REST API

Author: nirjharlo

autoload.php

@@ -287,6 +287,17 @@ public function shortcode() {
 		}
 
 
+		/**
+		 * Instantiate REST API
+		 *
+		 * @return Void
+		 */
+		 public function rest_api() {
+
+			 if ( class_exists( 'PLUGIN_CUSTOM_ROUTE' ) ) new PLUGIN_CUSTOM_ROUTE();
+		 }
+
+
 		/**
 		 * Add the functionality files
 		 * Available classes: PLUGIN_INSTALL, PLUGIN_DB, PLUGIN_METABOX, PLUGIN_QUERY, PLUGIN_SETTINGS, PLUGIN_SHORTCODE, PLUGIN_WIDGET
@@ -303,6 +314,7 @@ public function functionality() {
 			require_once( 'src/class-metabox.php' );
 			require_once( 'src/class-shortcode.php' );
 			require_once( 'src/class-cpt.php' );
+			require_once( 'src/class-rest.php' );
 		}
 
 
@@ -350,6 +362,9 @@ public function init() {
 			$this->metabox();
 			$this->shortcode();
 			$this->settings();
+
+			//Alternative method: add_action( 'rest_api_init', array($this, 'rest_api') );
+			$this->rest_api();
 		}
 	}
 } ?>

src/class-cpt.php

@@ -99,6 +99,8 @@ public function args( $labels ) {
 	          'publicly_queryable'  => true,
 	          'capability_type'     => 'post',
 	          'show_in_rest'        => true,
+			  //Controls WP REST API behaviour
+			  'rest_controller_class' => 'WP_REST_Terms_Controller',
 	      );
 
 	      return $args;

src/class-rest.php

@@ -0,0 +1,82 @@
+<?php
+<?php
+if ( ! defined( 'ABSPATH' ) ) exit;
+
+/**
+ * Extending REST API framework of WordPress
+ *
+ * @author     Nirjhar Lo
+ * @package    wp-plugin-framework
+ */
+if ( ! class_exists( 'PLUGIN_CUSTOM_ROUTE' ) ) {
+
+	class PLUGIN_CUSTOM_ROUTE extends WP_REST_Controller {
+
+
+		/**
+		 * REST API routes
+		 *
+		 * @return Object
+		 */
+		public function register_routes() {
+
+			$version = '1';
+    		$namespace = 'vendor/v' . $version;
+    		$base = 'route';
+
+			//Available options for methods are CREATABLE, READABLE, EDITABLE, DELETABLE
+			register_rest_route( $namespace, '/' . $base, array(
+        		'methods'             => WP_REST_Server::READABLE,
+        		'callback'            => array( $this, 'callback' ),
+        		'permission_callback' => array( $this, 'permission' ),
+        		'args'                => array('sample', 'list', 'of', 'args'),
+      		),
+		}
+
+
+		/**
+		 * The request handler
+		 *
+		 * @return Object
+		 */
+		public function callback() {
+
+    		$params = $request->get_params();
+    		$items = array();
+    		$data = $this->prepare_item_for_response( $items, $request );
+
+    		if ( $data ) {
+      			return new WP_REST_Response( $data, 200 );
+    		} else {
+				return new WP_Error( 'status_code', __( 'message', 'text-domain' ) );
+			}
+		}
+
+
+		/**
+		 * Prevent unauthorized access here
+		 *
+		 * @return Bool
+		 */
+		public function permission() {
+
+			return current_user_can( 'manage_options' );
+		}
+
+
+		/**
+		 * Processing of request takes place here
+		 *
+		 * @param Array
+		 * @param Object
+		 *
+		 * @return Array
+		 */
+		protected function prepare_item_for_response($items, $request) {
+
+			//Process the data in any way you like
+			$data = compact($items, $request);
+			return $data;
+		}
+	}
+}