[SalesForce] Using Async/Await in Lightning Components

Looks like even after clicking next button, you get only first 5 records.It is because, page number value is not properly set ,so always it contains 1.

({
    getOpps: function(component, event, page) {
         console.log(component); //component is properly assigned
         console.log(event); // event contain the page number
         console.log(page); // nothing is passed to the 3rd parameter,so it is undefined
         page = page || 1; // so, page always contains 1

    }

});

So, change this helper.getOpps(component, page) to helper.getOpps(component,event,page)

Broken Promises!! needed to wrap the status in the onload() function! aha! working code below..

({
getScores: function (component, event) {

    return new Promise($A.getCallback(function (resolve, reject) {

        console.log('entered promise function');

        var req = new XMLHttpRequest();
        var controlTowerURL = 'https://orgcontroltower.herokuapp.com';
        //open the request for data
        req.open('GET', controlTowerURL + '/getScores');

        //if resolved
        req.onload = function () {
            if (req.status === 200) {

                console.log('it responsed!');


                // Resolve the promise with the response text
                resolve(req.response);
            }
            else {
                // Otherwise reject with the status text
                // which will hopefully be a meaningful error
                reject(Error(req.statusText));
            }
        };

        req.send();

    }));
}

})