config di lifespan

api/app_builder/dependencies.py

@@ -10,11 +10,14 @@ from api.infrastructure.dependencies.adapters import (
     new_session,
     new_unit_of_work,
 )
+from api.infrastructure.dependencies.configs import app_settings
 from api.infrastructure.dependencies.repositories import get_user_repository
 from api.infrastructure.dependencies.usecases import provide_create_user
+from api.infrastructure.settings import Settings
 
 
 def init_dependencies(app: FastAPI) -> None:
+    app.dependency_overrides[Settings] = app_settings
     app.dependency_overrides[AsyncEngine] = create_engine
     app.dependency_overrides[async_sessionmaker[AsyncSession]] = create_session_maker
     app.dependency_overrides[AsyncSession] = new_session

api/app_builder/main.py

@@ -1,3 +1,6 @@
+from collections.abc import AsyncGenerator
+from contextlib import asynccontextmanager
+
 from fastapi import FastAPI
 
 from api.app_builder.dependencies import init_dependencies
@@ -5,8 +8,16 @@ from api.app_builder.dependencies import init_dependencies
 from .routers import init_routers
 
 
+@asynccontextmanager
+async def lifespan(app: FastAPI) -> AsyncGenerator:
+    print("init lifespan")
+    yield
+
+
 def app_factory() -> FastAPI:
-    app = FastAPI()
+    app = FastAPI(
+        lifespan=lifespan,
+    )
     init_dependencies(app)
     init_routers(app)
 

api/infrastructure/dependencies/adapters.py

@@ -12,6 +12,7 @@ from sqlalchemy.ext.asyncio import (
 from api.application.abstractions import UnitOfWork
 from api.infrastructure.dependencies.stub import Stub
 from api.infrastructure.persistence.uow import SqlAlchemyUnitOfWork
+from api.infrastructure.settings import Settings
 
 
 def new_unit_of_work(
@@ -20,15 +21,16 @@ def new_unit_of_work(
     return SqlAlchemyUnitOfWork(session)
 
 
-def create_engine() -> AsyncEngine:
+def create_engine(
-    return create_async_engine("postgresql+asyncpg://postgresql+asyncpg//demo_user:user_pass@db:5432/serviceman_db")
+    settings: Annotated[Settings, Depends(Stub(Settings))],
+) -> AsyncEngine:
+    return create_async_engine(settings.db.db_url)
 
 
 def create_session_maker(
     engine: Annotated[AsyncEngine, Depends(Stub(AsyncEngine))],
 ) -> async_sessionmaker[AsyncSession]:
     maker = async_sessionmaker(engine, expire_on_commit=False)
-    print("session_maker id:", id(maker))
     return maker
 
 

api/infrastructure/dependencies/configs.py

@@ -0,0 +1,30 @@
+import os
+from functools import lru_cache
+
+import yaml  # type: ignore
+
+from api.infrastructure.persistence.db_setings import DBSettings
+from api.infrastructure.settings import Settings
+
+
+def yaml_loader(file: str) -> dict[str, dict[str, str]]:
+    with open(file) as f:
+        yaml_data: dict = yaml.safe_load(f)
+    return yaml_data
+
+
+@lru_cache
+def app_settings() -> Settings:
+    config_data = yaml_loader(
+        file=os.getenv("CONFIG_PATH", "./config/api_config.yml"),
+    )
+
+    return Settings(
+        db=DBSettings(
+            pg_user=config_data["db"]["user"],
+            pg_pass=config_data["db"]["password"],
+            pg_host=config_data["db"]["host"],
+            pg_port=int(config_data["db"]["port"]),
+            pg_db=config_data["db"]["database"],
+        ),
+    )

api/infrastructure/dependencies/usecases.py

@@ -5,10 +5,11 @@ from fastapi import Depends
 from api.application.abstractions.uow import UnitOfWork
 from api.application.usecase.create_user import CreateUser
 from api.domain.user.repository import UserRepository
+from api.infrastructure.dependencies.stub import Stub
 
 
 def provide_create_user(
-    user_repository: Annotated[UserRepository, Depends()],
+    user_repository: Annotated[UserRepository, Depends(Stub(UserRepository))],
     uow: Annotated[UnitOfWork, Depends()],
 ) -> CreateUser:
     return CreateUser(uow=uow, user_repository=user_repository)

api/infrastructure/persistence/db_setings.py

@@ -0,0 +1,20 @@
+from dataclasses import dataclass
+
+
+@dataclass(frozen=True)
+class DBSettings:
+    pg_user: str
+    pg_pass: str
+    pg_host: str
+    pg_port: int
+    pg_db: str
+
+    @property
+    def db_url(self) -> str:
+        return "postgresql+asyncpg://{}:{}@{}:{}/{}".format(
+            self.pg_user,
+            self.pg_pass,
+            self.pg_host,
+            self.pg_port,
+            self.pg_db,
+        )

api/infrastructure/persistence/models/base.py

@@ -0,0 +1,5 @@
+from sqlalchemy.orm import DeclarativeBase
+
+
+class Base(DeclarativeBase):
+    ...

api/infrastructure/persistence/models/user.py

@@ -0,0 +1,18 @@
+import uuid
+
+from sqlalchemy import UUID
+from sqlalchemy.orm import Mapped, mapped_column
+
+from api.infrastructure.persistence.models.base import Base
+
+
+class UserModel(Base):
+    __tablename__ = "user"
+
+    id: Mapped[uuid.UUID] = mapped_column(
+        UUID(as_uuid=True),
+        primary_key=True,
+    )
+    name: Mapped[str]
+    email: Mapped[str] = mapped_column(unique=True)
+    hashed_password: Mapped[str]

api/infrastructure/persistence/repositories/user_repository.py

@@ -1,6 +1,8 @@
+from sqlalchemy import insert
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from api.domain.user import User, UserRepository
+from api.infrastructure.persistence.models.user import UserModel
 
 
 class SqlAlchemyUserRepository(UserRepository):
@@ -8,7 +10,13 @@ class SqlAlchemyUserRepository(UserRepository):
         self.session = session
 
     async def create_user(self, user: User) -> None:
-        pass
+        stmt = insert(UserModel).values(
+            id=user.id,
+            name=user.name,
+            email=user.email,
+            hashed_password=user.password,
+        )
+        await self.session.execute(stmt)
 
     async def get_user(self, filter: dict) -> User | None:
         pass

api/infrastructure/settings.py

@@ -0,0 +1,8 @@
+from dataclasses import dataclass
+
+from api.infrastructure.persistence.db_setings import DBSettings
+
+
+@dataclass()
+class Settings:
+    db: DBSettings

api/presentation/routers/user.py

@@ -14,8 +14,8 @@ async def get_all_users() -> list[UserResponse]:
     return []
 
 
-@user_router.post("/")
+@user_router.post("/", status_code=201)
-async def create_task(
+async def create_user(
     request: UserCreateRequest,
     usecase: Annotated[CreateUser, Depends(Stub(CreateUser))],
 ) -> None:

config/api_config.yml

@@ -1,5 +1,5 @@
 db:
-  host: "localhost"
+  host: "db"
   port: 5432
   database: "serviceman_db"
   user: "demo_user"