DELETE method in typescript

Question

I have this method. When I click on remove button it shows console.log-message but does not hit the server. What am I missing?

removeSelecteds(instances: number[]) : Observable<void>{

  var obj = { instanceIds: instances };

  console.log('JSON.stringify(obj)='+JSON.stringify(obj));

  return this.http
    .request(URLS.instances+'/remove', RequestMethod.Delete, JSON.stringify(obj))
    .map(res => {
      this.getInstances();
    }
  );
}

Thanks in advance

Michel Ferreira Ribeiro · Accepted Answer · 2018-06-14 18:49:31Z

3

You need to subscribe to your request observable

this.http
      .request(URLS.instances+'/remove', RequestMethod.Delete, JSON.stringify(obj))
      .map(res => {
          this.getInstances();
        }
      ).subscribe((result) => {
          console.log(result); //Output the result from the server
});

Edit: Since Angular 5 you dont need to .map() the request

edited Jun 14, 2018 at 18:49

answered Aug 15, 2017 at 14:16

Michel Ferreira Ribeiro

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Comments

hagner · Accepted Answer · 2017-08-15 14:15:03Z

0

You need to subscribe to a observable to "activate" it:

removeSelecteds(numbers).subscribe(res => console.log(res));

You can read more about angular http client and observables here: https://angular.io/guide/http

answered Aug 15, 2017 at 14:15

hagner

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