Create database.py

app/database.py

@@ -0,0 +1,18 @@
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker, DeclarativeBase
+from .config import Settings, build_database_url
+
+settings = Settings()
+
+class Base(DeclarativeBase):
+    pass
+
+engine = create_engine(build_database_url(settings), echo=False, pool_pre_ping=True)
+SessionLocal = sessionmaker(bind=engine, autoflush=False, autocommit=False)
+
+def get_db():
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()