mediumpost

beforeasyncawait.js

async function check(req, res) {
    someOtherFunction().then((a) => {
        somethingElseFunction().then((b) => {
            res.status(200).json({a: a, b: b});
        }).catch((error) => {
            res.send("error");
        })
    }).catch((error) => {
        res.send("error");
    })
}

someOtherFunction = () => {
    return new Promise((resolve, reject) => {
        setTimeout(function () {
            resolve("something")
        }, 10);
    })

}

somethingElseFunction = () => {
    return new Promise((resolve, reject) => {
        setTimeout(() => {
            resolve("not a error");
        })
    })
}