first commit

database.py

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+from sqlalchemy import create_engine
+from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy.orm import sessionmaker
+import os
+from dotenv import load_dotenv
+from pathlib import Path
+
+ROOT_DIR = Path(__file__).parent
+load_dotenv(ROOT_DIR / '.env')
+
+DATABASE_URL = os.environ.get('DATABASE_URL', 'postgresql://user:password@localhost:5432/membership_db')
+
+engine = create_engine(DATABASE_URL)
+SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
+
+Base = declarative_base()
+
+def get_db():
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()