Business
Jobs
  • About Us
  • Solutions
    • Job Postings
      Post your job and receive qualified candidates in 48h.
    • Candidate Assessments
      500+ technical and psychological tests, plus anti-fraud.
    • Headhunting
      Tailor-made executive search from start to finish.
    • Payroll + EOR
      Payroll dispersal and EOR across 15+ LATAM countries.
  • Pricing
  • Jobs

0

81
Views
Timer on the client side. Firebase + Angular

I'm doing an online auction. Accordingly, a timer is needed that, after the expiration of time, will change the status of the item to inactive. With the help of a web worker, I'm managed to do this. I check the end date (which I take from the firestore) with the current one and if they match, then I change the status. But unfortunately, it only works by pressing a button on the page that launches the webworker. If I change, for example, to onload, then ngOnInit does not have time to receive data from the firestore and, accordingly, the webworker is not executed. Is there a way that can help solve this problem?

I know that firebase has such a thing named 'function', but unfortunately it is paid.

component.ts

ngOnInit(){
this.initializeWorker();
}

timeWorker(){
    if(this.products.status==='active'){
      this.worker.postMessage(this.products.closureDate);

      this.worker.addEventListener('message', ({data})=>{
        this.checkStatus(data);
      })
    }
  }

  initializeWorker(){
    if (typeof Worker !== 'undefined') {
      // Create a new
      this.worker = new Worker(new URL('./random.worker', import.meta.url));
      this.worker.postMessage('');
    } else {
      // Web workers are not supported in this environment.
      // You should add a fallback so that your program still executes correctly.
    }
  }

worker.ts

addEventListener('message', ({ data }) => {
    console.log("data:" + data);
    const response = endUpAuc(data);
    postMessage(response);
});

function endUpAuc(ps) {
    console.log("ps: "+ps);
    var cDate = new Date(ps);
    console.log("cdate: "+cDate)
    if(cDate.getTime()>new Date().getTime())
    {
      console.log(cDate.getTime());
      console.log(new Date().getTime());
      console.log("active");
      return "active";
    }
    else if(cDate.getTime()<=new Date().getTime()){
      console.log("inactive");
      //this.updateStatus("inactive");
      return "inactive";
      //this.router.navigate(['/results'])
    }
}

component.html

<div class="about" onload="timeWorker()">
...
</div>
about 4 years ago · Juan Pablo Isaza
Answer question
Find remote jobs

Discover the new way to find a job!

Top jobs
Top job categories
Business
Post vacancy Pricing Sales
Legal
Terms and conditions Privacy policy
© 2026 PeakU Inc. All Rights Reserved.
Andres GPT
Show me some job opportunities
There's an error!