implemented base functions

shared/datastore/src/put_image.py

@@ -22,14 +22,13 @@ def put_image(
     # get bucket name from env
     bucket_name = os.getenv('MINIO_BUCKET_NAME', default='')
     assert len(bucket_name) > 0
-    # save image to buffer
+    # save data to buffer
     buffer = BytesIO()
     image.save(buffer, 'png')
     # get md5 of buffer
     checksum = md5(buffer.getbuffer()).hexdigest()
-    # determine object name
-    subfolder = 'images'
-    object_name = f'{subfolder}/{checksum}'
+    # set object name
+    object_name = f'images/{checksum}'
     # send data to bucket
     put(
         client=client,