Function getSessionConfig

src/core.ts:272–297

(
  sessionOptions: SessionOptions,
)

}

function getSessionConfig(
  sessionOptions: SessionOptions,
): Required<SessionOptions> {
  const options = {
    ...defaultOptions,
    ...sessionOptions,
    cookieOptions: {
      ...defaultOptions.cookieOptions,
      ...(sessionOptions.cookieOptions || {}),
    },
  };

  if (
    sessionOptions.cookieOptions &&
    "maxAge" in sessionOptions.cookieOptions
  ) {
    if (sessionOptions.cookieOptions.maxAge === undefined) {
      // session cookies, do not set maxAge, consider token as infinite
      options.ttl = 0;
    }
  } else {
    options.cookieOptions.maxAge = computeCookieMaxAge(options.ttl);
  }

  return options;
}

const badUsageMessage =
  "iron-session: Bad usage: use getIronSession(req, res, options) or getIronSession(cookieStore, options).";