from sqlalchemy import create_engine from backend.app.config import get_settings connection_string = "postgresql+{drivername}://{username}:{password}@{server}:{port}/{dbname}" db_string = connection_string.format( drivername="psycopg2", # You'll need to use psycopg2 driver for PostgreSQL username=get_settings().DB_USERNAME, password=get_settings().DB_PASSWORD, server=get_settings().DB_HOST, port=get_settings().DB_PORT, dbname=get_settings().DB_NAME, ) db_engine = create_engine(db_string, pool_size=5, max_overflow=5)