Grabbing contact for people oncall

handler.js

const getOncallForSchedule = async (team, id, pd) => {
  const userOnCall = await pd.schedules.listUsersOnCall(id, {
    time_zone: 'UTC',
    since: new Date().toISOString(),
    until: new Date(Date.now() + 1000).toISOString(),
  });
  const user = JSON.parse(userOnCall.body).users.pop();

  const contactMethods = await pd.users.listContactMethods(user.id);
  const userDetails = JSON.parse(contactMethods.body);
  const contact = userDetails.contact_methods.find((e) => e.type === 'phone_contact_method');

  return {
    id: user.id,
    name: user.name,
    email: user.email,
    phone: contact ? `+${contact.country_code}${contact.address}` : null,
    time_zone: user.time_zone,
    team,
  };
};

const getOncallForTeams = async (teams, pd) => {
  const promises = teams.map((team) => team.schedules.map(async (scheduleId) => {
    try {
      return await getOncallForSchedule(team.name, scheduleId, pd);
    } catch (e) {
      return { error: `Unexpected error when fetching oncallee for ${team.name}` };
    }
  })).flat();
  return Promise.all(promises);
};

// await getOncallForTeams([... filtered teams ...], PagerDutySDK) => [userX, userY, userZ]