Google Calendar List API w/Node.js SDK

getCalendarEvents.ts

import * as calendar from "@googleapis/calendar";
import { format, subDays, addDays, toDate } from "date-fns";

const auth = new calendar.auth.GoogleAuth({
  credentials: {
    client_email: process.env.GOOGLE_CLIENT_EMAIL,
    private_key: process.env.GOOGLE_PRIVATE_KEY
  },
  scopes: ["https://www.googleapis.com/auth/calendar.readonly"],
});

export async function getCalendarEvents({
  calendarId,
  from,
  to,
  pageSize,
}: {
  calendarId: string;
  from?: Date;
  to?: Date;
  pageSize?: number;
}) {
  console.log({ calendar });
  const calendarClient = calendar.calendar({
    version: "v3",
    auth,
  });

  const timeMin = subDays(new Date(), 30).toISOString();
  const timeMax = addDays(new Date(), 30).toISOString();

  const res = await calendarClient.events.list({
    calendarId,
    timeMin: from ? from.toISOString() : timeMin,
    timeMax: to ? to.toISOString() : timeMax,
    maxResults: pageSize ?? 1000,
    singleEvents: true,
  });

  const data = (res.data?.items ?? [])
    .filter((x) => x.status !== "cancelled")
    .map((x) => {
      const startDate = toDate(x?.start?.dateTime!);
      const endDate = toDate(x?.end?.dateTime!);
      return {
        name: x.summary || "No title",
        startDate: format(startDate, "yyyy-MM-dd"),
        endDate: format(endDate, "yyyy-MM-dd"),
        startTime: format(startDate, "HH:mm"),
        endTime: format(endDate, "HH:mm"),
      };
    });

  data.sort((a, b) => {
    return new Date(a.startDate).getTime() - new Date(b.startDate).getTime();
  });

  return data;
}