Sample services not starting

[just495]

if sqlachemy version more then 2.0.0 raised error:

Traceback (most recent call last):
  File "/home/just495/Projects/github.com/just495/FastAPI-REST-JSONAPI/examples/api_for_sqlalchemy/main.py", line 23, in <module>
    from examples.api_for_sqlalchemy.urls import add_routes
  File "/home/just495/Projects/github.com/just495/FastAPI-REST-JSONAPI/examples/api_for_sqlalchemy/urls.py", line 20, in <module>
    from .api.user import (
  File "/home/just495/Projects/github.com/just495/FastAPI-REST-JSONAPI/examples/api_for_sqlalchemy/api/__init__.py", line 3, in <module>
    from .user import UserFactory
  File "/home/just495/Projects/github.com/just495/FastAPI-REST-JSONAPI/examples/api_for_sqlalchemy/api/user.py", line 15, in <module>
    from examples.api_for_sqlalchemy.helpers.factories.user import UserFactory, ErrorCreateUserObject
  File "/home/just495/Projects/github.com/just495/FastAPI-REST-JSONAPI/examples/api_for_sqlalchemy/helpers/factories/user.py", line 16, in <module>
    from ...models.sqlalchemy import User
  File "/home/just495/Projects/github.com/just495/FastAPI-REST-JSONAPI/examples/api_for_sqlalchemy/models/sqlalchemy/__init__.py", line 3, in <module>
    from examples.api_for_sqlalchemy.models.sqlalchemy.user import User
  File "/home/just495/Projects/github.com/just495/FastAPI-REST-JSONAPI/examples/api_for_sqlalchemy/models/sqlalchemy/user.py", line 11, in <module>
    class User(Base, BaseModelMixin):
  File "/home/just495/Projects/github.com/just495/FastAPI-REST-JSONAPI/.venv/lib/python3.9/site-packages/sqlalchemy/orm/decl_api.py", line 199, in __init__
    _as_declarative(reg, cls, dict_)
  File "/home/just495/Projects/github.com/just495/FastAPI-REST-JSONAPI/.venv/lib/python3.9/site-packages/sqlalchemy/orm/decl_base.py", line 247, in _as_declarative
    return _MapperConfig.setup_mapping(registry, cls, dict_, None, {})
  File "/home/just495/Projects/github.com/just495/FastAPI-REST-JSONAPI/.venv/lib/python3.9/site-packages/sqlalchemy/orm/decl_base.py", line 328, in setup_mapping
    return _ClassScanMapperConfig(
  File "/home/just495/Projects/github.com/just495/FastAPI-REST-JSONAPI/.venv/lib/python3.9/site-packages/sqlalchemy/orm/decl_base.py", line 559, in __init__
    self._scan_attributes()
  File "/home/just495/Projects/github.com/just495/FastAPI-REST-JSONAPI/.venv/lib/python3.9/site-packages/sqlalchemy/orm/decl_base.py", line 958, in _scan_attributes
    self._collect_annotation(
  File "/home/just495/Projects/github.com/just495/FastAPI-REST-JSONAPI/.venv/lib/python3.9/site-packages/sqlalchemy/orm/decl_base.py", line 1151, in _collect_annotation
    extracted = _extract_mapped_subtype(
  File "/home/just495/Projects/github.com/just495/FastAPI-REST-JSONAPI/.venv/lib/python3.9/site-packages/sqlalchemy/orm/util.py", line 2306, in _extract_mapped_subtype
    raise sa_exc.ArgumentError(
sqlalchemy.exc.ArgumentError: Type annotation for "User.created_at" can't be correctly interpreted for Annotated Declarative Table form.  ORM annotations should normally make use of the ``Mapped[]`` generic type, or other ORM-compatible generic type, as a container for the actual type, which indicates the intent that the attribute is mapped. Class variables that are not intended to be mapped by the ORM should use ClassVar[].  To allow Annotated Declarative to disregard legacy annotations which don't use Mapped[] to pass, set "__allow_unmapped__ = True" on the class or a superclass this class. (Background on this error at: https://sqlalche.me/e/20/zlpr)

Started from uvicorn 0.19.0 removed '--debug' flag: encode/uvicorn#1640

[just495]

#6 pull request