Load Public Google Calendar Events

Event data can be loaded from remote sources, like public google calendars. Through the integration plugin you can easily show events that are available in a public calendar. The integration plugin needs to be added to the download package or installed separately from a dedicated NPM package.

You will just need the CALENDAR_ID and an apiKey from google and you should be ready to roll.

Public calendars are read-only. If you are interested in syncing private google calendars with read/write/delete access, check out this example.

This example uses the integration plugin to connect to and load events from Google Calendar and it is not available in the trial. Give the live demo a try and see how it can be configured.
Get started with the agenda

Demo

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Preview in full screen

Load events from a public Google Calendar into the agenda view using the integration plugin — connect with a Calendar ID and API key.

Code

View code on GitHub 
import { googleCalendarSync } from '@mobiscroll/calendar-integration';
import {
  CalendarNav,
  CalendarNext,
  CalendarPrev,
  CalendarToday,
  Eventcalendar,
  Segmented,
  SegmentedGroup,
  setOptions,
  Toast ,
} from '@mobiscroll/react';
import { useCallback, useEffect, useRef, useState } from 'react';

setOptions({
  locale:  ,
  theme: ' ',
  themeVariant: ' '
});

const CALENDAR_ID = 'theacidmedia.net_8l6v679q5j2f7q8lpmcjr4mm3k@group.calendar.google.com';

function App() {
  const [currentView, setCurrentView] = useState('agenda');
  const [isLoading, setLoading] = useState(false);
  const [isToastOpen, setToastOpen] = useState(false);
  const [myEvents, setEvents] = useState([]);
  const [myView, setView] = useState({
    calendar: { type: 'week' },
    agenda: { type: 'week' },
  });
  const [toastMessage, setToastMessage] = useState('');

  const firstDay = useRef();
  const lastDay = useRef();

  const handleError = useCallback((resp) => {
    setToastMessage(resp.error ? resp.error : resp.result.error.message);
    setToastOpen(true);
  }, []);

  const loadEvents = useCallback(() => {
    setTimeout(() => {
      setLoading(true);
    });
    googleCalendarSync
      .getEvents(CALENDAR_ID, firstDay.current, lastDay.current)
      .then((resp) => {
        setEvents(resp);
        setLoading(false);
      })
      .catch(handleError);
  }, [handleError]);

  const changeView = useCallback((event) => {
    let view;

    switch (event.target.value) {
      case 'month':
        view = {
          calendar: { type: 'month' },
        };
        break;
      case 'week':
        view = {
          scheduler: { type: 'week' },
        };
        break;
      case 'day':
        view = {
          scheduler: { type: 'day' },
        };
        break;
      case 'agenda':
      default:
        view = {
          calendar: { type: 'week' },
          agenda: { type: 'week' },
        };
        break;
    }

    setCurrentView(event.target.value);
    setView(view);
  }, []);

  const handlePageLoading = useCallback(
    (event) => {
      const start = event.viewStart;
      const end = event.viewEnd;

      // Calculate dates
      // (pre-load events for previous and next pages as well)
      if (currentView === 'month') {
        firstDay.current = start;
        lastDay.current = end;
      } else {
        firstDay.current = new Date(start.getFullYear(), start.getMonth(), start.getDate() - 7);
        lastDay.current = new Date(end.getFullYear(), end.getMonth(), end.getDate() + 7);
      }

      loadEvents();
    },
    [loadEvents, currentView],
  );

  const handleCloseToast = useCallback(() => {
    setToastOpen(false);
  }, []);

  const customHeader = useCallback(
    () => (
      <>
        <CalendarNav className="mds-google-cal-nav" />
        <div className={'mds-loader' + (isLoading ? ' mds-loader-visible' : '')}></div>
        <div className="mds-google-cal-switch mbsc-flex-1-0">
          <SegmentedGroup value={currentView} onChange={changeView}>
            <Segmented value="month">Month</Segmented>
            <Segmented value="week">Week</Segmented>
            <Segmented value="day">Day</Segmented>
            <Segmented value="agenda">Agenda</Segmented>
          </SegmentedGroup>
        </div>
        <CalendarPrev className="mds-google-cal-prev" />
        <CalendarToday className="mds-google-cal-today" />
        <CalendarNext className="mds-google-cal-next" />
      </>
    ),
    [changeView, currentView, isLoading],
  );

  useEffect(() => {
    googleCalendarSync.init({
      apiKey: '<YOUR_GOOGLE_API_KEY>',
      onInit: loadEvents,
    });
  }, [loadEvents]);

  return (
    <>
      <Eventcalendar data={myEvents} exclusiveEndDates={true} renderHeader={customHeader} view={myView} onPageLoading={handlePageLoading} />
      <Toast isOpen={isToastOpen} message={toastMessage} onClose={handleCloseToast} />
    </>
  );
}

export default App;

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