Update logic to check existence of object

jupyter_drives/manager.py

@@ -542,6 +542,27 @@ async def presigned_link(self, drive_name, path):
             }
         return response
 
+    async def check_file(self, drive_name, path):
+        """Check if an object already exists within a drive.
+
+        Args:
+            drive_name: name of drive where object exists
+            path: path where content is located
+        """
+        # eliminate leading and trailing backslashes
+        path = path.strip('/')
+        check = await self._file_system._exists(drive_name + '/' + path)
+        if check == False:
+            # check if we are dealing with a directory
+            check = await self._file_system._exists(drive_name + '/' + path + EMPTY_DIR_SUFFIX)
+            if check == False:
+                raise tornado.web.HTTPError(
+                    status_code= httpx.codes.NOT_FOUND,
+                    reason="Object does not already exist within drive.",
+                )
+
+        return 
+
     async def _get_drive_location(self, drive_name):
         """Helping function for getting drive region.
 

src/requests.ts

@@ -475,7 +475,7 @@ export const countObjectNameAppearances = async (
   path: string,
   originalName: string
 ): Promise<number> => {
-  let counter: number = 0;
+  let dirCount: { [fileName: string]: number } = {};
   path = path.substring(0, path.lastIndexOf('/'));
 
   const response = await requestAPI<any>(
@@ -489,11 +489,14 @@ export const countObjectNameAppearances = async (
       if (
         fileName.substring(0, originalName.length + 1).includes(originalName)
       ) {
-        counter += 1;
+        dirCount[fileName] = 1;
       }
     });
   }
-
+  const counter = Object.values(dirCount).reduce(
+    (sum, count) => sum + count,
+    0
+  );
   return counter;
 };