Merge branch 'master' into '3-minio_api'

# Conflicts:
#   middleware/app_be/views/rest_api.py

middleware/app_be/services/hashservice.py

@@ -0,0 +1,7 @@
+import hashlib
+
+
+def create_sha512(b: bytes):
+    h = hashlib.sha512()
+    h.update(b)
+    return h.hexdigest()

middleware/app_be/services/wrapperservice.py

@@ -6,7 +6,7 @@ class WrapperService:
     @staticmethod
     def wrap_file(file_bytes: bytes) -> str:
         file_encoded_b64 = base64.b64encode(file_bytes)
-        return file_encoded_b64.decode('utf-8')
+        return file_encoded_b64.decode()
 
     @staticmethod
     def unwrap_file(file_str: str) -> bytes: