[SOLVED] NodeJS problem with recurring events from ICal

NodeJS problem with recurring events from ICal

I'm using this https://www.npmjs.com/package/ical node module to parse an ICal file to a JavaScript object. So now I want to have a function that gives me all events for the current week. My problem is, that there are recurring events. I've not found a property that helps me to identify when the recurring range starts and ends. How to process this ICal recurring events?

Solution

There's rrule package, you can create recurring events with it:

const rule = new RRule({
  freq: RRule.WEEKLY,
  interval: 5,
  byweekday: [RRule.MO, RRule.FR],
  dtstart: new Date(Date.UTC(2012, 1, 1, 10, 30)),
  until: new Date(Date.UTC(2012, 12, 31))
})

or even parse a recurrence rule string:

rrulestr('DTSTART:20120201T023000Z\nRRULE:FREQ=MONTHLY;COUNT=5')

It has many other helper functions too such as between, before, all, etc.