folder restructure

server/src/utils/upload.js

@@ -0,0 +1,23 @@
+import multer from 'multer';
+
+const storage = multer.diskStorage({
+  destination: function (req, file, cb) {
+    cb(null, 'uploads/');
+  },
+  filename: function (req, file, cb) {
+    cb(null, Date.now() + '--' + file.originalname);
+  },
+});
+
+// filter only json
+const filterJson = (req, file, cb) => {
+  if (file.mimetype.includes('application/json')) {
+    cb(null, true);
+  } else {
+    cb(null, false);
+  }
+};
+
+const uploadJson = multer({ storage: storage, fileFilter: filterJson });
+
+export default uploadJson.single('jsondb');