gowee / lccal-worker

Auto-generated 📅 iCal/ics (calendar) for Leetcode Contests on Cloudflare Workers

lccal-worker

A script that generates 📅 iCal/ics for Leetcode (Bi)Weekly Contests, deployed on Cloudflare Workes: https://lccal-worker.bamboo.workers.dev/ical?download.

iCal generator

Endpoint: /ical

A subscribable iCal/ics file.

For example, add https://lccal-worker.bamboo.workers.dev/ical to Google Calendar via https://calendar.google.com/calendar/r/settings/addbyurl. Then it will get updated automatically when there are new contests.

Most other calendar services also support subscribing by URL: https://duck.com/?q=how+to+subscribe+ical+by+url .

SVG generator

Endpoint: /svg

An auto-generated SVG for fun.

Name	Description
width	The size of the generated SVG. 300 by default.
height	The size of the generated SVG. auto by default.

For example:

.

Other params

The following URL query params are for both of the two endpoint above.

Name	Description
offset	N-th contests, in descending order of time, to start. 0 by default.
limit	The number of contests to get. 10 by default.
region	LeetCode's data region, either US or CN. US by default.
timezone	Timezone to use in calendar. Asia/Shanghai by default when region=CN. UTC O.W.
download	When present and not false or 0, instruct the browser to save the generated file.

lccal-worker's Issues

Some calendar client does not recognize the URL property of events

As is, say Google Calendar and Outlook.

https://leetcode.com/discuss/general-discussion/963277/I-wrote-a-script-to-generate-subscribable-iCal-calendar-for-weekly-contests/1403106

Set notifications/alerts with VALARM

According to RFC 5545, an alarm can be set onto an event with the VALARM component. It is expected to trigger notifications/alerts before events start.

But it appears that some iCal clients deliberately ignore VALARM, such as Google Calendar and Outlook.

https://stackoverflow.com/questions/54082152/ical-file-doesnt-import-valarm-alerts-into-outlook-as-internet-calendar