Get amounts total for first 16 pages of grants grouped by issue

sumGrantsByIssue.js

// Hardcoded number of pages - hacky demo!

var request = require('request');

var numLoaded = 0;
var grants = [];
var totalPages = 16;

function readPage(pageNum, resolve) {
  request(
    'https://1kfs7evxca.execute-api.eu-west-1.amazonaws.com/beta/grants?page=' + pageNum,
    function (err, res, body) {
      if (err) {
        console.log('ERROR ON PAGE ' + pageNum, err);
      } else {
        var text = JSON.parse(body);
        grants = grants.concat(text.data.grants);
        numLoaded++;
        if (numLoaded === totalPages) {
          resolve();
        }
      }
    }
  );
}

var allLoadedPromise = new Promise(function(resolve) {
  for (var ii = 1; ii <= totalPages; ii++) {
    readPage(ii, resolve)
  }
});

allLoadedPromise.then(function() {
  var amountByIssue = [];

  for (var ii = 0; ii < grants.length; ii++) {
    if (!amountByIssue[grants[ii].data.issue]) {
        amountByIssue[grants[ii].data.issue] = 0.00;
    }
        
    amountByIssue[grants[ii].data.issue] += parseFloat(grants[ii].data.amount_awarded);
  }

  console.log(amountByIssue);
});