Fix

fastapi_file_server/app/services/file_uploader.py

@@ -54,11 +54,11 @@ class FileUploader:
         else:
             storage = self.get_user_storage()
 
-        setattr(self.file, "seekable", seekable)  # noqa: B010
-        setattr(self.file, "name", self.filename)  # noqa: B010
+        file = self.file.file
+        setattr(file, "name", self.filename)  # noqa: B010
 
         data = await storage.upload(
-            self.file,  # type: ignore
+            file,
             file_size=self.file_size,
             filename=self.filename,
             caption=self.caption,

fastapi_file_server/app/services/storages.py

@@ -30,15 +30,17 @@ class BaseStorage:
             uploaded_file = await self.client.upload_file(
                 file, file_size=file_size, file_name=filename
             )
-            uploaded_file.name = filename
 
             if caption:
                 message = await self.client.send_file(
-                    entity=self.channel_id, file=uploaded_file, caption=caption
+                    entity=self.channel_id,
+                    file=uploaded_file,
+                    caption=caption,
+                    force_document=True,
                 )
             else:
                 message = await self.client.send_file(
-                    entity=self.channel_id, file=uploaded_file
+                    entity=self.channel_id, file=uploaded_file, force_document=True
                 )
         except telethon.errors.FilePartInvalidError:
             return None