Add currency_symbol to order response

src/RestApi/Version4/Controllers/Orders.php

@@ -237,6 +237,10 @@ class Orders extends AbstractObjectsController {
 			);
 		}
 
+		// Currency symbols.
+		$currency_symbol         = get_woocommerce_currency_symbol( $data['currency'] );
+		$data['currency_symbol'] = html_entity_decode( $currency_symbol );
+
 		return array(
 			'id'                   => $object->get_id(),
 			'parent_id'            => $data['parent_id'],
@@ -246,6 +250,7 @@ class Orders extends AbstractObjectsController {
 			'version'              => $data['version'],
 			'status'               => $data['status'],
 			'currency'             => $data['currency'],
+			'currency_symbol'      => $data['currency_symbol'],
 			'date_created'         => $data['date_created'],
 			'date_created_gmt'     => $data['date_created_gmt'],
 			'date_modified'        => $data['date_modified'],
@@ -869,6 +874,12 @@ class Orders extends AbstractObjectsController {
 					'enum'        => array_keys( get_woocommerce_currencies() ),
 					'context'     => array( 'view', 'edit' ),
 				),
+				'currency_symbol'      => array(
+					'description' => __( 'Currency symbol.', 'woocommerce' ),
+					'type'        => 'string',
+					'context'     => array( 'view', 'edit' ),
+					'readonly'    => true,
+				),
 				'date_created'         => array(
 					'description' => __( "The date the order was created, in the site's timezone.", 'woocommerce' ),
 					'type'        => 'date-time',

src/RestApi/Version4/changelog.md

@@ -5,6 +5,7 @@
 - All endpoints - Rewritten with namespaces as standalone classes.
 - Coupons - Added `search` parameter.
 - Orders - Added order number to schema.
+- Orders - Added currency_symbol to schema.
 - Product Reviews - Updated response links.
 - Products - Added `low_in_stock` and `search` parameter.
 - Product Variations - Added `search` parameter.