fetch iam users and sort by last password used

iam.ts

import { User, IAMClient, ListUsersCommand } from "@aws-sdk/client-iam";
import { formatDistance } from "date-fns";

const getUsers = async (m: string | undefined, iamUsers: User[] = []) => {
  const { Users, Marker, IsTruncated } = await new IAMClient({}).send(
    new ListUsersCommand({
      Marker: m,
    })
  );

  iamUsers.push(...Users);

  if (IsTruncated && Marker) {
    await getUsers(Marker, iamUsers);
  }
  return iamUsers;
};

const [, , filter] = process.argv;
filter
  ? console.log(`filter for aws iam users starting with: ${filter}`)
  : null;

(async () => {
  const users = (await getUsers(undefined)).filter(({ UserName }) => {
    if (filter) {
      return UserName?.startsWith(filter);
    }
    return true;
  });

  const sortedByPasswordLastedUsed = users.sort(
    ({ PasswordLastUsed: pwA = 0 }, { PasswordLastUsed: pwB = 0 }) => {
      return new Date(pwB).getTime() - new Date(pwA).getTime();
    }
  );

  console.log(
    sortedByPasswordLastedUsed.map(({ UserName, PasswordLastUsed = 0 }) => {
      return `${UserName}: ${
        !PasswordLastUsed
          ? "🤷🏼‍♂️"
          : formatDistance(new Date(), PasswordLastUsed as Date)
      }`;
    })
  );
})();