feat Zip up the pack

src/pack_api.ts

@@ -17,7 +17,7 @@ export default class PackAPI {
 
   public static downloadSinglePack = async (
     req: Request,
-    res: Response,
+    res: any,
     next: NextFunction
   ) => {
     if (!req.query.name) {
@@ -33,11 +33,6 @@ export default class PackAPI {
       });
     }
 
-    const zipFile = zip(foundPack.files);
-    response.pipe(zipFile);
-
-    return res.status(200).json({
-      message: "ok",
-    });
+    return res.zip(foundPack.files);
   };
 }