Create GET route for shipping zones, handling case where shipping calculations are disabled.

includes/api/class-wc-rest-shipping-zones-controller.php

@@ -36,6 +36,38 @@ class WC_REST_Shipping_Zones_Controller extends WC_REST_Controller {
 	 */
 	protected $rest_base = 'shipping/zones';
 
+	/**
+	 * Register the routes for Shipping Zones.
+	 */
+	public function register_routes() {
+		register_rest_route( $this->namespace, '/' . $this->rest_base, array(
+			array(
+				'methods'             => WP_REST_Server::READABLE,
+				'callback'            => array( $this, 'get_items' ),
+				'permission_callback' => array( $this, 'get_items_permissions_check' ),
+			),
+			'schema' => array( $this, 'get_public_item_schema' ),
+		) );
+	}
+
+	/**
+	 * Check whether a given request has permission to read Shipping Zones.
+	 *
+	 * @param  WP_REST_Request $request Full details about the request.
+	 * @return WP_Error|boolean
+	 */
+	public function get_items_permissions_check( $request ) {
+		if ( ! wc_shipping_enabled() ) {
+			return new WP_Error( 'rest_no_route', __( 'Shipping is disabled.' ), array( 'status' => 404 ) );
+		}
+
+		if ( ! wc_rest_check_manager_permissions( 'settings', 'read' ) ) {
+			return new WP_Error( 'woocommerce_rest_cannot_view', __( 'Sorry, you cannot list resources.', 'woocommerce' ), array( 'status' => rest_authorization_required_code() ) );
+		}
+
+		return true;
+	}
+
 	/**
 	 * Get the Shipping Zones schema, conforming to JSON Schema
 	 *

includes/class-wc-api.php

@@ -197,6 +197,7 @@ class WC_API extends WC_Legacy_API {
 			'WC_REST_Reports_Controller',
 			'WC_REST_Settings_Controller',
 			'WC_REST_Settings_Options_Controller',
+			'WC_REST_Shipping_Zones_Controller',
 			'WC_REST_Tax_Classes_Controller',
 			'WC_REST_Taxes_Controller',
 			'WC_REST_Webhook_Deliveries_Controller',