fix uploader

perxis/files/uploader.py

@@ -20,7 +20,6 @@ async def read_chunks(
         if not data:
             break
         yield data
-    file_object.seek(0)
 
 
 class FileUploader:
@@ -30,8 +29,8 @@ class FileUploader:
         data_provider: PerxisDataProvider,
         chunk_size: int = DEFAULT_CHUNK_SIZE,
     ) -> None:
-        self._file_provider = file_provider
-        self._data_provider = data_provider
+        self.file_provider = file_provider
+        self.data_provider = data_provider
         self.chunk_size = chunk_size
 
     async def __put_chunks(
@@ -60,7 +59,7 @@ class FileUploader:
         file_size: int,
         collection_id: str
     ) -> items_pb2.CreateResponse:
-        message = await self._file_provider.start_upload(
+        message = await self.file_provider.start_upload(
             file_name=file_name,
             file_size=file_size,
         )
@@ -70,7 +69,7 @@ class FileUploader:
             part_urls=message.upload.part_urls,
         )
 
-        await self._file_provider.complete_upload(
+        await self.file_provider.complete_upload(
             file_id=message.upload.file.id,
             upload_id=message.upload.upload_id,
             parts=parts,
@@ -86,7 +85,7 @@ class FileUploader:
             "file": file,
         })
 
-        message = await self._data_provider.create(
+        message = await self.data_provider.create(
             data=data,
             collection_id=collection_id,
         )
@@ -105,7 +104,7 @@ class FileUploader:
             file_size=file_size,
             collection_id=collection_id,
         )
-        await self._data_provider.publish(
+        await self.data_provider.publish(
             item_id=message.created.id,
             collection_id=collection_id,
         )