first

src/personal_info/app.py

@@ -0,0 +1,19 @@
+from fastapi import FastAPI
+
+def create_app() -> FastAPI:
+  app = FastAPI (
+    title='personal_info',
+    description='Personal Information Service',
+    version='1.0'
+  )
+
+  @app.get('/health')
+  async def health() -> str:
+    return 'ok'
+
+  
+  from personal_info.routers import persons
+  
+  app.include(persons.router)
+
+  return app

src/personal_info/config.py

@@ -0,0 +1,15 @@
+from functools import lru_cache
+from typing import Optional
+
+from pydantic import BaseSettings, PostgresDsn
+
+class Settings(BaseSettings):
+  database_url: Optional[PostgresDsn]
+
+@lru_cache
+def get_settings() -> Settings:
+  settings = Settings()  # type: ignore
+  print('333333333333333333333333333333333333333333')
+  print(settings)
+  #CONTINUE
+  return settings

src/personal_info/db/models.py

@@ -0,0 +1,17 @@
+import uuid
+from typing import Any
+
+import sqlalchemy as sa
+from sqlalchemy.dialects.postgresql import UUID
+from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy.orm import relationship
+from sqlalchemy.sql.schema import ForeignKey
+
+Base: Any = declarative_base()
+
+class Person(Base):
+  __tablename__ = 'people'
+
+  id = sa.Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+  first_name = sa.Column(sa.Text, nullable=False)
+  last_name = sa.Column(sa.Text, nullable=False)

src/personal_info/db/schemas/__init__.py

@@ -0,0 +1 @@
+from .person import *

src/personal_info/db/schemas/person.py

@@ -0,0 +1,16 @@
+from datetime import datetime
+from typing import List
+
+from pydantic import BaseModel, Field
+from pydantic.types import UUID4
+
+class Person(BaseModel):
+  id: UUID4
+  first_name: str
+  last_name: str
+
+class PersonCreate(Person):
+  pass
+
+class PersonDetail(Person):
+  pass

src/personal_info/db/session.py

@@ -0,0 +1,23 @@
+from functools import lru_cache
+from typing import Generator
+
+from sqlalchemy import create_engine
+from sqlalchemy.orm import scoped_session, sessionmaker
+
+from personal_info.config import get_settings
+
+engine = create_engine(get_settings().database_url, pool_pre_ping=True)
+
+@lru_cache
+def create_session() -> scoped_session:
+  Session = scoped_session(
+    sessionmaker(autocommit=False, autoflush=False, bind=engine)
+  )
+  return Session
+
+def get_session() -> Generator[scoped_session, None, None]:
+  Session = create_session()
+  try:
+    yield Session
+  finally:
+    Session.remove()

src/personal_info/main.py

@@ -0,0 +1,3 @@
+from personal_info.app import create_app
+
+app = create_app()

src/personal_info/routers/persons.py

@@ -0,0 +1,27 @@
+from fastapi import Depends
+from fastapi.routing import APIRouter
+from pydantic.types import UUID4
+
+from personal_info.db import models
+from personal_info.db.schemas import Person, PersonDetail
+from personal_info.services import PersonService, get_persons_service
+
+router = APIrouter(prefix='/people')
+
+@router.get('/', response_model=List[Person])
+async def list_persons(
+  persons_service: PersonService = Depends(get_persons_service),
+) -> List[models.Person]:
+  return persons_service.list()
+
+@router.get('/{person_id}', response_model=PersonDetail)
+async def get_person(
+  person_id: UUID4, persons_service: PersonService = Depends(get_persons_service)
+) -> Optional[models.Person]:
+  return persons_service.get(person_id)
+
+@router.post('/', status_code=201, response_model=PersonDetail)
+async def create_person(
+  person: PersonCreate, persons_service: PersonService = Depends(get_persons_service)
+) -> models.Person:
+  return persons_service.create(person)

src/personal_info/services/__init__.py

@@ -0,0 +1,11 @@
+from fastapi import Depends
+from sqlalchemy.orm import Session
+
+from personal_info.db.session import get_session
+
+from .people import PersonService
+
+def get_persons_service(db_session: Session = Depends(get_session)) -> PersonService:
+  return PersonService(db_session)
+
+__all__ = ('get_persons_service')

src/personal_info/services/base.py

@@ -0,0 +1,52 @@
+from typing import Any, Generic, List, Optional, Type, TypeVar
+
+import sqlalchemy
+from pydantic import BaseModel
+from sqlalchemy.orm import Session
+from starlette.exceptions import HTTPException
+
+from personal_info.db.models import Base
+
+ModelType = TypeVar('ModelType', bound=Base)
+CreateSchemaType = TypeVar('CreateSchemaType', bound=BaseModel)
+UpdateSchemaType = TypeVar('UpdateSchemaType', bound=BaseModel)
+
+class BaseService(Generic[ModelType, CreateSchemaType, UpdateSchemaType]):
+  def __init__(self, model: Type[ModelType], db_session: Session):
+    self.model = model
+    self.db_session = db_session
+
+  def get(self, id: Any) -> Optional[ModelType]:
+    obj: Optional[ModelType] = self.db_session.get(self.model, id)
+    if obj is None:
+      raise HTTPException(status_code=404, detail='NotFound')
+    return obj
+
+  def list(self) -> List[ModelType]:
+    objs: List[ModelType] = self.db_session.query(self.model).all()
+    return objs
+
+  def create(self, obj: CreateSchemaType) -> ModelType:
+    db_obj: ModelType = self.model(**obj.dict())
+    self.db_session.add(db_obj)
+    try:
+      self.db_session.commit()
+    except sqlalchemy.exc.IntegrityError as e:
+      self.db_session.rollback()
+      if 'duplicate key' in str(e):
+        raise HTTPException(status_code=409, detail='Conflict Error')
+      else:
+        raise e
+    return db_obj
+
+  def update(self, id: Any, obj: UpdateSchemaType) -> Optional[ModelType]:
+    db_obj = self.get(id)
+    for column, value in obj.dict(exclude_unset=True).items():
+      setattr(db_obj, column, value)
+    self.db_session.commit()
+    return db_obj
+
+  def delete(self, id: Any) -> None:
+    db_obj = self.db_session.get(self.model, id)
+    self.db_session.delete(db_obj)
+    self.db_session.commit()

src/personal_info/services/people.py

@@ -0,0 +1,19 @@
+from typing import Any
+
+from sqlalchemy.orm import Session
+
+from personal_info.db.models import Person
+from personal_info.db.schemas import PersonCreate
+
+from personal_info.services.base import BaseService
+
+class PersonService(BaseService[Person, PersonCreate, Any]):
+  def __init__(self, db_session: Session):
+    super(PersonService, self).__init__(Person, db_session)
+
+  def create(self, obj: PersonCreate) -> Person:
+    person: Person = Person()
+    self.db_session.add(person)
+    self.db_session.flush()
+    self.db_session.commit()
+    return person