migration, auth, refactoring, formatting

validations/auth.py

@@ -0,0 +1,16 @@
+from datetime import datetime
+from typing import Optional, Text
+
+from pydantic import BaseModel
+
+
+class AuthInput(BaseModel):
+    id: Optional[int]
+    username: Optional[Text]
+    password: Optional[Text]
+
+
+class TokenPayload(BaseModel):
+    user_id: int
+    exp: datetime
+    iat: datetime