SHOP: return name of purchased item (#198)

* nit for mobile

* return only name

* fix docs

* fix format

* oops

src/services/shop/shop-router.ts

@@ -263,7 +263,7 @@ shopRouter.get("/item/qr/:ITEMID", strongJwtVerification, async (req: Request, r
 });
 
 /**
- * @api {post} /shop/item/buy/:ITEMID/ POST /shop/item/buy/:ITEMID/
+ * @api {post} /shop/item/buy/ POST /shop/item/buy/
  * @apiGroup Shop
  * @apiDescription Purchase item at the point shop using provided QR code.
  *
@@ -278,7 +278,7 @@ shopRouter.get("/item/qr/:ITEMID", strongJwtVerification, async (req: Request, r
  * }
  *
  * @apiUse strongVerifyErrors
- * @apiError (200: Success) {String} Success Purchase was successful.
+ * @apiError (200: Success) {String} Success Purchase was successful. Returns purchased item name on success.
  * @apiError (404: Forbidden) {String} AttendeeProfileNotFound User has no attendee profile.
  * @apiError (404: Not Found) {String} ItemNotFound Item with itemId not found or already purchased.
  * @apiError (404: Not Found) {String} InvalidUniqueItem This unique item is already purchased or doesn't exist.
@@ -321,11 +321,15 @@ shopRouter.post("/item/buy", strongJwtVerification, async (req: Request, res: Re
             },
         );
 
+        const targetItem = await Models.ShopItem.findOne({ itemId: itemId });
+
         // decrement attendee coins
         if (updatedShopQuantity) {
             await updateCoins(userId, -itemFormat.price).then(console.error);
         }
-        return res.status(StatusCode.SuccessOK).send({ success: true });
+        return res
+            .status(StatusCode.SuccessOK)
+            .send({ success: true, itemName: targetItem ? targetItem["name"] : "Item Doesn't Exist :(" });
     }
 
     return next(new RouterError(StatusCode.ClientErrorNotFound, "InvalidUniqueItem"));