Scheduling a Task using Cron Expression

Sometimes Fixed Rate and Fixed Delay can not fulfill your needs, and we need the flexibility of cron expressions to schedule the execution of your tasks. With the help of the provided ScheduleWithCron method, we can schedule a task based on a cron expression.

taskScheduler := chrono.NewDefaultTaskScheduler()

task, err := taskScheduler.ScheduleWithCron(func(ctx context.Context) {
    log.Print("Scheduled Task With Cron")
}, "0 45 18 10 * *")

if err == nil {
    log.Print("Task has been scheduled")
}

In this case, we're scheduling a task to be executed at 18:45 on the 10th day of every month

By default, the local time is used for the cron expression. However, we can use the WithLocation option to change this.

warning

WithStartTime option cannot be used with ScheduleWithCron.

task, err := taskScheduler.ScheduleWithCron(func(ctx context.Context) {
    log.Print("Scheduled Task With Cron")
}, "0 45 18 10 * *", chrono.WithLocation("America/New_York"))

In the above example, Task will be scheduled to be executed at 18:45 on the 10th day of every month in America/New York time.