text: import os
  
  _db_user = os.environ['POSTGRES_USER']
  _db_password = os.environ['POSTGRES_PASSWORD']
  _db_host = os.environ['POSTGRES_HOST']
  _db_name = os.environ['POSTGRES_DB']
  _db_port = os.environ['POSTGRES_PORT']
  
  DATABASE_URI = f'postgresql+psycopg2://{_db_user}:{_db_password}@{_db_host}:{_db_port}/{_db_name}'
  