var Ceic = require('ceic_api');
,var accessToken = "ENTER YOUR API KEY HERE";

var apiClient = new Ceic.ApiClient();
var seriesApi = new Ceic.SeriesApi(apiClient);

const seriesIds = ["EXAMPLE SERIES ID"];

async function getSeriesInChunks(seriesIds, chunkSize) {
    let chunks = split_array_into_chunks(seriesIds, chunkSize);
    for (i in chunks) {
        let result = await seriesApi.getSeries(chunks[i], {"token": accessToken});
        console.log(JSON.stringify(result));
    }
}

function split_array_into_chunks(arr, chunkSize) {
    let result = [];
    for (let i = 0; i < arr.length; i += chunkSize) {
        let chunkArray = arr.slice(i, i + chunkSize);
        result.push(result);
    }

    return result;
}

let chunkSize = 25;
(async() => {
    try {
        await getSeriesInChunks(seriesIds, chunkSize);
    } catch (err) {
        console.log(JSON.stringify(err));
    }
})();