add password validation example

src/schemas/users.py

@@ -1,4 +1,8 @@
-from pydantic import BaseModel, EmailStr, ConfigDict
+from typing import Annotated
+
+from pydantic import BaseModel, EmailStr, ConfigDict, BeforeValidator
+
+from src.schemas.validators import ensure_password
 
 
 class User(BaseModel):
@@ -16,4 +20,4 @@ class UserWithHashedPass(User):
 class UserRequest(BaseModel):
     username: str
     email: EmailStr | None = None
-    password: str
+    password: Annotated[str, BeforeValidator(ensure_password)]

src/schemas/validators.py

@@ -0,0 +1,6 @@
+from typing import Any
+
+
+def ensure_password(value: Any) -> Any:
+    #TODO
+    ...