Function assertUserExists

utils/progresses.js:54–59

(userId)

 * @returns {Promise<void>} A promise that resolves if the user exists and rejects with a `NotFound` error if the user does not exist.
 */
const assertUserExists = async (userId) => {
  const { userExists } = await fetchUser({ userId });
  if (!userExists) {
    throw new NotFound(`User with id ${userId} does not exist.`);
  }
};

/**
 * Checks if a user with a given ID exists in the system.