extended add to wishlist with metadata

packages/medusa-plugin-wishlist/src/api/store/customers.js

@@ -38,6 +38,7 @@ export default () => {
     const schema = Validator.object().keys({
       variant_id: Validator.string().required(),
       quantity: Validator.number().required(),
+      metadata: Validator.object().optional(),
     })
 
     const { value, error } = schema.validate(req.body)
@@ -57,7 +58,8 @@ export default () => {
         const lineItem = await lineItemService.generate(
           value.variant_id,
           regions[0].id,
-          value.quantity
+          value.quantity,
+          { metadata: value.metadata }
         )
 
         const wishlist = (customer.metadata && customer.metadata.wishlist) || []