change from sync to async and from flask to quart

server/Files.py

@@ -1,16 +1,24 @@
+import aiofiles.os
+import aiofiles
 import os
 
-def read_file(path, callback=None):
-  if os.path.exists(path):
-    with open(path, 'r') as f:
-      data = callback(f)
-    return data
-  else:
+async def read_file(path: str, callback=None):
+  if not await aiofiles.os.path.exists(path):
     return None
 
-def save_file(path, data, callback=None, *args, **kwargs):
-  if not os.path.exists(path):
-    os.makedirs(os.path.dirname(path), exist_ok=True)
+  async with aiofiles.open(path, "r") as f:
+    if callback:
+      return await callback(f)
+    return await f.read()
 
-  with open(path, 'w') as f:
-    callback(data, f, *args, **kwargs)
+
+async def save_file(path: str, data, callback=None, *args, **kwargs):
+  dir_path = os.path.dirname(path)
+  if dir_path:
+    await aiofiles.os.makedirs(dir_path, exist_ok=True)
+
+  async with aiofiles.open(path, "w") as f:
+    if callback:
+      await callback(data, f, *args, **kwargs)
+    else:
+      await f.write(data)