Sgbj.Cron.CronTimer

Provides a cron timer similar to System.Threading.PeriodicTimer that enables waiting asynchronously for timer ticks.

Available on NuGet.

Usage

Normal usage:

// Every minuteusingvartimer=newCronTimer("* * * * *");while(awaittimer.WaitForNextTickAsync()){// Do work}

Example hosted service:

publicclassCronJob:BackgroundService{protectedoverrideasyncTaskExecuteAsync(CancellationTokenstoppingToken){// Every day at 8am local timeusingvartimer=newCronTimer("0 8 * * *",TimeZoneInfo.Local);while(awaittimer.WaitForNextTickAsync(stoppingToken)){// Do work}}}

Non-standard cron expression:

// Every 30 secondsusingvartimer=newCronTimer(CronExpression.Parse("*/30 * * * * *",CronFormat.IncludeSeconds));

Resources

• Hangfire/Cronos - Library for working with cron expressions.
• Crontab.guru - The cron schedule expression editor.