Cancel node-schedule event after it has been set

Question

I am planning on using node-schedule to set up push notifications for appointment reminders as follows:

var schedule = require('node-schedule');
var date = req.body.date;   // Date for reminder from client request 
var j = schedule.scheduleJob(date, function(){
    // Send push notification
});

Now I know you can cancel the event by calling cancel():

j.cancel()

However, how can I refer to that specific job to cancel if the user from the client side decides to change the appointment to a different date?

Thanks in advance for your help!

score 39 · Accepted Answer · answered Oct 24 '15 at 06:38

39

In order to retrieve a specific job, you could create it with a unique name and you can retrieve it later via that unique name:

var j = schedule.scheduleJob(unique_name, date, function() {
});
// later on
var my_job = schedule.scheduledJobs[unique_name];
my_job.cancel();

answered Oct 24 '15 at 06:38

ShahNewazKhan

1,057
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4

this worked beautifully. thank you. i was trying to serialize the job object, write it into my db, retrieve it, deserialize it and the call .cancel(). you can imagine my pain. – kalin Oct 01 '16 at 00:14
\0/ that's awesome! – ShahNewazKhan Dec 14 '16 at 00:23
It is very helpful after 2 years as well. Thanks a lot. – Sudarshana Dayananda Oct 27 '18 at 12:06
@ShahNewazKhan it seems it doesn't work with node-schedule version 1.3.2. if there is a unique_name parameter, function is not called at specified date at all. with which version it works? also i can't find unique name as first parameter in doc. – user006779 May 26 '19 at 17:02

score 0 · Answer 2 · answered Mar 20 '17 at 17:01

var randf = require('randomstring');    
    var jobId = randf.generate(10); //randomsrting
    var at = new Date();
    var time = at.setSeconds(at.getSeconds() + Number(5))  //after 5 second     
    schedule.scheduleJob(jobId, new Date(time),function(){
         schedule.cancelJob(jobId);
         console.log('hi--viral');
     });

Cancel node-schedule event after it has been set

2 Answers2

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