database.py

from sqlalchemy import create_engine
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker

# DATABASE_URL = "postgresql://tracinginsights:gabbie1972!@localhost/maindb"
DATABASE_URL = "sqlite:///./main.db"

engine = create_engine(DATABASE_URL, connect_args={"check_same_thread": False})

SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)

Base = declarative_base()