ics

The iCalendar generator

Install

npm install -S ics

Example Usage

Generate an iCalendar event:

var ICS = require('ics');

var ics = new ICS();

ics.buildEvent({
  uid: 'abc123', // (optional)
  start: '2016-05-30 06:50',
  end: '2016-05-30 15:00',
  title: 'Bolder Boulder',
  description: 'Annual 10-kilometer run in Boulder, Colorado',
  location: 'Folsom Field, University of Colorado (finish line)',
  url: 'http://www.bolderboulder.com/',
  status: 'confirmed',
  geo: { lat: 40.0095, lon: 105.2669 },
  attendees: [
    { name: 'Adam Gibbons', email: '[email protected]' },
    { name: 'Brittany Seaton', email: '[email protected]' }
  ],
  categories: ['10k races', 'Memorial Day Weekend', 'Boulder CO'],
  alarms:[
    { action: 'DISPLAY', trigger: '-PT24H', description: 'Reminder', repeat: true, duration: 'PT15M' },
    { action: 'AUDIO', trigger: '-PT30M' }
  ]
});

The above snippet will return this:

BEGIN:VCALENDAR
VERSION:2.0
CALSCALE:GREGORIAN
PRODID:-//Adam Gibbons//agibbons.com//ICS: iCalendar Generator
BEGIN:VEVENT
UID:2073c980-9545-11e6-99f9-791bff9883ed
DTSTAMP:20161018T151121Z
DTSTART:20160530T065000
DTEND:20160530T150000
SUMMARY:Bolder Boulder
DESCRIPTION:Annual 10-kilometer run in Boulder, Colorado
LOCATION:Folsom Field, University of Colorado (finish line)
URL:http://www.bolderboulder.com/
STATUS:confirmed
GEO:40.0095;105.2669
ATTENDEE;CN=Adam Gibbons:mailto:[email protected]
ATTENDEE;CN=Brittany Seaton:mailto:[email protected]
CATEGORIES:10k races,Memorial Day Weekend,Boulder CO
BEGIN:VALARM
ACTION:DISPLAY
TRIGGER:-PT24H
DESCRIPTION:Reminder
REPEAT:1
DURATION:PT15M
END:VALARM
BEGIN:VALARM
ACTION:AUDIO
TRIGGER:-PT30M
END:VALARM
END:VEVENT
END:VCALENDAR

API

buildEvent(attributes)

Returns an iCal-compliant text string.

attributes

Optional. Object literal attributes of the event. Accepts the following properties:

Property	Description	Default
start	ISO 8601 date (yyyymmdd) or datetime (yyyymmddThhmm) string.	Today (as ISO 8601 date string)
end	Event end date/time string. Must match start ISO 8601 value type.	If start value is date, next day; if value is datetime, same value as start.
title	String. Title of event.
description	String. Description of event.
location	String. Intended venue, e.g. Room 101.
geo	Object literal. Geographic coordinates (lat/lon) as floats, e.g. {lat: 38.9072, lon: 77.0369}.
url	String. URL associated with event.
status	String. Must be one of: tentative, confirmed, or cancelled.
attendees	Array of object literals, e.g. {name: 'Foo', email: '[email protected]'}.
categories	Array of string values.
alarms	Array of object literals, e.g. { action: 'DISPLAY', trigger: '-PT30M' }. For details on parameters, see the spec.

createEvent(attributes[, options], cb)

Asynchronously writes an iCal file. Returns a callback with the stringified event.

options

Optional. Object literal accepting the following properties:

Property	Description	Default
filepath	Filename, relative path + filename, or absolute path + filename.	Absolute path to current working directory, plus event.ics. E.g. /Users/gibber/my-project/event.ics

filepath accepts relative or absolute paths. For example, these values resolve to /Users/gibber/my-event.ics when executed from /Users/gibber:

• my-event
• my-event.ics
• /Users/gibber/my-event
• /Users/gibber/my-event.ics

...and these will resolve to /Users/my-event.ics when executed from /Users/gibber:

• ../my-event
• ../my-event.ics

References

• RFC 5545: Internet Calendaring and Scheduling Core Object Specification (iCalendar)
• iCalendar Validator