ical-generator-lite is a fork of the ical-generator library specifically made for working on platforms like cloudflare workers. This package removes things like 'fs' and other unneeded things for edge-runtimes.

📦 Installation

npm install ical-generator-lite

# For TypeScript Users
# (see "I use Typescript and get TS2307: Cannot find module errors" section below)
npm i -D @types/node rrule moment-timezone moment dayjs @types/luxon

⚡️ Quick Start

import ical from "ical-generator-lite";
import http from "node:http";

const calendar = ical({ name: "my first iCal" });
const startTime = new Date();
const endTime = new Date();
endTime.setHours(startTime.getHours() + 1);
calendar.createEvent({
    start: startTime,
    end: endTime,
    summary: "Example Event",
    description: "It works ;)",
    location: "my room",
    url: "http://sebbo.net/",
});

http.createServer((req, res) => calendar.serve(res)).listen(
    3000,
    "127.0.0.1",
    () => {
        console.log("Server running at http://127.0.0.1:3000/");
    }
);

See the examples folder for more examples.

📑 API-Reference

• Index
  • ICalCalendar
  • ICalEvent
    • ICalAlarm
    • ICalAttendee
    • ICalCategory

🕒 Date, Time & Timezones

ical-generator-lite supports native Date, Day.js, Luxon's DateTime and the older moment.js and moment-timezone objects. You can also pass a string which is then passed to javascript's Date internally.

It is recommended to use UTC time as far as possible. ical-generator-lite will output all time information as UTC time as long as no time zone is defined. For day.js, a plugin is necessary for this, which is a prerequisite. If a time zone is set, ical-generator-lite assumes that the given time matches the time zone. If a time zone is used, it is also recommended to use a VTimezone generator. Such a function generates a VTimezone entry and returns it. For example, ical-timezones can be used for this:

import ical from "ical-generator-lite";
import { getVtimezoneComponent } from "@touch4it/ical-timezones";

const cal = new ICalCalendar();
cal.timezone({
    name: "FOO",
    generator: getVtimezoneComponent,
});
cal.createEvent({
    start: new Date(),
    timezone: "Europe/London",
});

If a moment-timezone object or Luxon's setZone method works, ical-generator-lite sets it according to the time zone set in the calendar/event.

🚦 Tests

npm test
npm run coverage
npm run browser-test

🙆🏼‍♂️ Credits

Original author Sebastian Pekarek