1b1f93e10f
- Set up project structure with FastAPI - Create Todo database model and schema - Implement database connection with SQLAlchemy - Set up Alembic migrations - Implement CRUD API endpoints for Todo items - Add health check endpoint - Update documentation in README.md generated with BackendIM... (backend.im)
45 lines
1.2 KiB
Python
45 lines
1.2 KiB
Python
from sqlalchemy import create_engine
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from sqlalchemy.ext.declarative import declarative_base
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from sqlalchemy.orm import sessionmaker
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from pathlib import Path
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# Create database directory if it doesn't exist
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DB_DIR = Path("/app") / "storage" / "db"
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DB_DIR.mkdir(parents=True, exist_ok=True)
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SQLALCHEMY_DATABASE_URL = f"sqlite:///{DB_DIR}/db.sqlite"
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# For local development, use a relative path
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LOCAL_DB_PATH = Path(__file__).parent.parent.parent / "storage" / "db"
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LOCAL_DB_PATH.mkdir(parents=True, exist_ok=True)
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LOCAL_DB_URL = f"sqlite:///{LOCAL_DB_PATH}/db.sqlite"
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# Choose the appropriate URL based on environment
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DATABASE_URL = LOCAL_DB_URL # Default to local development
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engine = create_engine(
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DATABASE_URL,
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connect_args={"check_same_thread": False}
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)
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SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
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Base = declarative_base()
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def get_db():
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"""
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Dependency function to get a database session.
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Used as a FastAPI dependency in route handlers.
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"""
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db = SessionLocal()
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try:
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yield db
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finally:
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db.close()
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def create_db_and_tables():
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"""
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Create database tables if they don't exist.
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Call this function on application startup.
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"""
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Base.metadata.create_all(bind=engine) |