using System;

using System.Threading.Tasks;

using Quartz;

using Quartz.Impl;

​

class Program

{

    static async Task Main(string[] args)

    {

        // Create a scheduler factory

        StdSchedulerFactory factory = new StdSchedulerFactory();

​

        // Get a scheduler

        IScheduler scheduler = await factory.GetScheduler();

        await scheduler.Start();

​

        // Define the job and tie it to our Job class

        IJobDetail job = JobBuilder.Create<SimpleJob>()

            .WithIdentity("job1", "group1")

            .Build();

​

        // Trigger the job to run every 3 seconds

        ITrigger trigger = TriggerBuilder.Create()

            .WithIdentity("trigger1", "group1")

            .StartNow()

            .WithSimpleSchedule(x => x

                .WithIntervalInSeconds(3)//every 3 seconds

                .RepeatForever())

            .Build();

​

        // Schedule the job using the trigger

        await scheduler.ScheduleJob(job, trigger);

​

        // Keep the console window open

        Console.WriteLine("Press [Enter] to close the application.");

        Console.ReadLine();

​

        // Shutdown the scheduler

        await scheduler.Shutdown();

    }

}

​

public class SimpleJob : IJob

{

    public Task Execute(IJobExecutionContext context)

    {

        // here send the email

        Console.WriteLine("job triggered");

        return Task.CompletedTask;

    }

}

​