Simple golang rest server to get a list of recurring dates utulzing rrule
go run ./cmd/server.go
Recurring Server is listening on port 8080...
2024/07/22 17:28:51 Received JSON: {Frequency:monthly Until:0001-01-01 00:00:00 +0000 UTC Count:12 WeekDays:[] Interval:1 Month:0 Pos:0 Day:1}wadearnold@mb recurring % curl -X POST -d '{"frequency": "monthly", "interval": 1, "day": 1, "count":12}' http://localhost:8080/recurrings{"rRule":"RRULE:FREQ=MONTHLY;INTERVAL=1;COUNT=12;BYMONTHDAY=1",
"occurrences":["2024-08-01T23:26:09Z","2024-09-01T23:26:09Z","2024-10-01T23:26:09Z","2024-11-01T23:26:09Z","2024-12-01T23:26:09Z","2025-01-01T23:26:09Z","2025-02-01T23:26:09Z","2025-03-01T23:26:09Z","2025-04-01T23:26:09Z","2025-05-01T23:26:09Z","2025-06-01T23:26:09Z","2025-07-01T23:26:09Z"],
"recurring":{"frequency":"monthly","until":"0001-01-01T00:00:00Z","count":12,"interval":1,"day":1}}examples:
Recurring Daily; Repeat every 1 day(s); Run until it reaches 36 occurrences
"recurring": {
"frequency": "daily",
"count": 12,
"interval": 1,
}Recurring Weekly; Repeat every 2 week(s) on FR ; Never stop;
"recurring": {
"frequency": "weekly",
"WeekDays": ["FR"],
"interval": 2,
}Recurring Monthly; Repeat every 1 month(s) on the First; Run until: 2050-07-21
"recurring": {
"frequency": "monthly",
"until": "2050-07-21",
"interval": 1,
}Research
RRule
https://www.rfc-editor.org/rfc/rfc5545#section-3.3.10
https://datatracker.ietf.org/doc/html/rfc5545
Go implementations
https://github.com/efficap-energie/rrule-go
https://github.com/teambition/rrule-go
https://github.com/graham/rrule
rrule.js
https://github.com/jkbrzt/rrule
https://www.nylas.com/blog/create-recurring-events-using-rrule-dev/
jQuery Recurring Rule
https://demo.mobiscroll.com/jquery/datetime/recurring-values#
RSchedule: a javascript recurring events library
https://medium.com/@john.carroll.p/rschedule-a-javascript-recurring-dates-library-36b4a279a4ca
https://codesandbox.io/s/rschedule-starter-pxezu?fontsize=14&module=/src/index.ts&file=/src/index.ts