CODEWITHSUNDEEP
javascriptpromiseasync-await
Kishan Sripada
Kishan Sripada

Reputation: 87

proceed after several await functions have resolved

I am trying to set some variables equal to the await result of a function, but I want the async functions to run concurrently.

my code:

async function track() {

  var track = await getTrack(urlParams.get('track'))

  var trackAnalysis = await getTrackAnalysis(urlParams.get('track'))

  var artists = await getArtists(artistIds)

  //then do something with all 3 variables after they have all been resolved

}

Upvotes: 1

Views: 49

Answers (1)

jfriend00
jfriend00

Reputation: 707546

If you want them to run concurrently and they are actually asynchronous and return a promise that resolves with the appropriate value, then you can use Promise.all() to run them concurrently:

async function track() {
    let [track, trackAnalysis, artists] = await Promise.all([
        getTrack(urlParams.get('track')),
        getTrackAnalysis(urlParams.get('track')),
        getArtists(artistIds)
    ]);
    // do something with all 3 variables
}

Upvotes: 1

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