JAVASCRIPT

Calling $http.post in batches and chaining promises

arrayOfRequests.reduce((promiseChain, currentRequest) => {
    console.log(promiseChain);
    return promiseChain.then((previousResponse) => {
        completeArray.push.apply(completeArray, previousResponse.data);
        render($scope, completeArray, someId);
        return callToHttpPost(currentRequest);
    });
}, Promise.resolve({ data: [] }))
.then(response => {
    completeArray.push.apply(completeArray, previousResponse.data);
    render($scope, completeArray, someId);
    displaySuccessNotification();
})
.catch(e => errorHandler($scope, e, someId));