Using setTimeout() to Schedule pushes

Question

Since Scheduled push is not available on Parse , I'm using setTimeout() to schedule pushes. I'm using back4app.

// I call this cloud code
Parse.Cloud.define("pushMultiple",async (request) => {
//Using set timeout to send out a push 1 hour later
  setTimeout(pushout,100000);
});

//The function to send Notificaiton 
const pushout = () => {
        Parse.Push.send({
          channels: [ "t1g.com"],
          data: {alert: "The Giants won against the Mets 2-3."}
         },{ useMasterKey: true });
}

My code works fine. So my question is this:

1) Is my method reliable?

2) What can the disadvantages of this be ?

3) How many setTimeouts() can be queued on the server, is there any sort of limit ?

T.I.A

Why don't you use sheduled cron jobs? I believe back4app supports cron jobs. Save necessary push information to database. Then run a cloud code every "x" time. If push time is come your cloud code sends the push. SetTimeOut() method , I believe keeps the istance or reference of cloud code. Which means your cloud code is still "working" even its just waiting, Parse server should be keeping the instance of it. That means you wast your resources. Also I believe back4app has a cloud code timeout. Even you use setTimeOut() for one hour cloud code will be terminated after timeout. — uzaysan
I've been thinking the same. Thank you for the clarification. You may use your comment to answer my question because it's correct. — Tanzim Chowdhury
Hi, you don't need to re-post your question, you can edit your existing question Schedule Push notification on Parse. Please delete this copy, use the buttons below the question for that. — Manuel
@Manuel Hello , the question was not re-posted, they might sound the same but they are both completely different. — Tanzim Chowdhury
In this question you are asking whether setTimeout to delay pushes is reliable and what the disadvantages can be. In the other question you are sharing the same code and ask whether it "is wrong or harmful in anyway or if there is a better way of doing it". There is no essential difference in these two questions. — Manuel

uzaysan uzaysan · Accepted Answer · 2020-04-15T06:03:09

Why don't you use sheduled cron jobs? I believe back4app supports cron jobs. Save necessary push information to database. Then run a cloud code every "x" time. If push time is come your cloud code sends the push. SetTimeOut() method , I believe keeps the istance or reference of cloud code. Which means your cloud code is still "working" even its just waiting, Parse server should be keeping the instance of it. That means you wast your resources. Also I believe back4app has a cloud code timeout. Even you use setTimeOut() for one hour cloud code will be terminated after timeout.

Using setTimeout() to Schedule pushes

1 Answers