function getMetric1Data() {
    // Some API call that takes 500ms to fetch data
    return new Promise(resolve => {
        setTimeout(() => {
            resolve("Got metric 1 data");
        }, 500);
    });
}

function getMetric2Data() {
    // Some API call that takes 1000ms to fetch data
    return new Promise(resolve => {
        setTimeout(() => {
            resolve("Got metric 2 data");
        }, 1000);
    });
}

function getMetric3Data() {
    // Some API call that takes 500ms to fetch data
    return new Promise(resolve => {
        setTimeout(() => {
            resolve("Got metric 3 data");
        }, 500);
    });
}

// Fetching the data using only Async/Await. Process takes ~2000ms
(async () => {
    const startTime = Date.now();

    const metric1Data = await getMetric1Data();
    const metric2Data = await getMetric2Data();
    const metric3Data = await getMetric3Data();

    const dataSet = [metric1Data, metric2Data, metric3Data];

    console.log("Data set from only async/await:", dataSet);

    const endTime = Date.now();

    console.log(
        "Only Async/Await Process took: " + (endTime - startTime) + " ms"
    );
})();

// Fetching the data using Promise.all w/ Async/Await. Process takes ~1000ms
(async () => {
    const startTime = Date.now();

    const dataSet = await Promise.all([
        getMetric1Data(),
        getMetric2Data(),
        getMetric3Data()
    ]);

    console.log("Data set from Promise.all w/ async/await:", dataSet);

    const endTime = Date.now();

    console.log(
        "Promise.all with Async/Await Process took: " +
            (endTime - startTime) +
            " ms"
    );
})();