cron-expression-lib

cron-expressopn-lib is a Node.js libry to generate quartz cron expression.

Installation

npm install cron-exp-lib

usage

var cronExpression = require('cron-exp-lib');
var cron = cronExpression.generateCronExpression("YEAR", new Date(), [1,2], ["JAN"], 5);

Pass following parameters to generateCronExpression function.

• selection (string)
• UTCDateTime (UTCtime)
• selectedDaysOfWeekArray (array)
• selectedMonths (array)
• repeatOccurence (number)

Available options

• selection
  • SECOND, MINUTE, HOUR, DAY, MONTH, YEAR
• selectedDaysOfWeekArray
  • Array of strings with names of week (allowed first three capital letters )["MON","WED"]
  • Array of numbers with 1 to 31 [5,7,21]
  • Array with ["L"]
  • Array with ["LW"]
• selectedMonths
  • Array of strings with names of months (allowed first three capital letters ) ["FEB", "MAY"]

Available cron patterns

Asterisk. E.g. *
Question mark E.g. ?
repeat occurrences. E.g. */2

cron accepted values

Seconds: 0-59
Minutes: 0-59
Hours: 0-23
Day of Month: 1-31, L, LW
Months: (JAN-DEC)
Day of Week: (SUN-SAT)