Angular (2+): http.post with promise

I'm using the following code to send multiple HTTP posts with promise. All requests are inserted into an array:

async SendPostRequest (id : number)
{
var body = this.postRequest.Serialize();
//Push all requests into array
this.requestArray.push (
this.http.post (TGT_IP,body,{responseType: 'arraybuffer'}).toPromise ());
}


In my case array contains ~500 elements. And then I call to:

await Promise.all(this.requestArray);


It works. But after each http post I want also to update progress bar.
Is it wise to insert also the progress bar update into this array ?

Thank you, Zvika

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