Add endpoint to retrieve all shipping zone methods.

includes/api/class-wc-rest-shipping-zone-methods-controller.php

@@ -21,6 +21,74 @@ if ( ! defined( 'ABSPATH' ) ) {
  * @extends WC_REST_Shipping_Zones_Controller_Base
  */
 class WC_REST_Shipping_Zone_Methods_Controller extends WC_REST_Shipping_Zones_Controller_Base {
+
+	/**
+	 * Register the routes for Shipping Zone Methods.
+	 */
+	public function register_routes() {
+		register_rest_route( $this->namespace, '/' . $this->rest_base . '/(?P<zone_id>[\d-]+)/methods', array(
+			array(
+				'methods'             => WP_REST_Server::READABLE,
+				'callback'            => array( $this, 'get_items' ),
+				'permission_callback' => array( $this, 'permissions_check' ),
+			),
+			'schema' => array( $this, 'get_public_item_schema' ),
+		) );
+	}
+
+	/**
+	 * Get all Shipping Zone Methods.
+	 *
+	 * @param WP_REST_Request $request
+	 * @return WP_REST_Response|WP_Error
+	 */
+	public function get_items( $request ) {
+		$zone = $this->get_zone( $request['zone_id'] );
+
+		if ( is_wp_error( $zone ) ) {
+			return $zone;
+		}
+
+		$methods = $zone->get_shipping_methods();
+		$data    = array();
+
+		foreach ( $methods as $method_obj ) {
+			$method = $this->prepare_item_for_response( $method_obj, $request );
+			$method = $this->prepare_response_for_collection( $method );
+			$data[] = $method;
+		}
+
+		return rest_ensure_response( $data );
+	}
+
+	/**
+	 * Prepare the Shipping Zone Method for the REST response.
+	 *
+	 * @param array $item Shipping Zone Method.
+	 * @param WP_REST_Request $request Request object.
+	 * @return WP_REST_Response $response
+	 */
+	public function prepare_item_for_response( $item, $request ) {
+		$method = array(
+			'instance_id'        => $item->instance_id,
+			'title'              => $item->instance_settings['title'],
+			'order'              => $item->method_order,
+			'enabled'            => ( 'yes' === $item->enabled ),
+			'method_id'          => $item->id,
+			'method_title'       => $item->method_title,
+			'method_description' => $item->method_description,
+		);
+
+		$context = empty( $request['context'] ) ? 'view' : $request['context'];
+		$data    = $this->add_additional_fields_to_object( $method, $request );
+		$data    = $this->filter_response_by_context( $data, $context );
+
+		// Wrap the data in a response object.
+		$response = rest_ensure_response( $data );
+
+		return $response;
+	}
+
 	/**
 	 * Get the Shipping Zone Methods schema, conforming to JSON Schema
 	 *