getMediumViewsPerDay.js

// Run in chrome console whilst on the stats page

function download(filename, text) {
    var pom = document.createElement('a');
    pom.setAttribute('href', 'data:text/plain;charset=utf-8,' + encodeURIComponent(text));
    pom.setAttribute('download', filename);

    if (document.createEvent) {
        var event = document.createEvent('MouseEvents');
        event.initEvent('click', true, true);
        pom.dispatchEvent(event);
    }
    else {
        pom.click();
    }
}

function dateToString(date) {
  return date.getDate() +'/' + (date.getMonth() + 1) + '/' + date.getFullYear();
}

function getViewsPerDay() {
  return Array.from(document.getElementsByClassName("bargraph-bar"))
    .map(bar => bar.getAttribute("data-tooltip"))
    .map((barText) => {
      var viewsRe = /^([0-9]+)/
      var views = viewsRe.exec(barText)[0];
      var dateRe = /\w+\s([0-9]){1,2}$/
      var dateString = dateRe.exec(barText)[0];
      var dateWithCurrentYear = new Date(dateString + ' ' + new Date().getFullYear());
      var currentDate = new Date();

      if (dateWithCurrentYear > currentDate) {
        var lastYear = new Date().getFullYear() - 1;
        var date = dateToString(new Date(dateString + ' ' + lastYear));
      } else {
        var date = dateToString(dateWithCurrentYear);
      }

      return {
        views: views,
        date: date
      }
    });
}

function getViewsPerDayText() {
  var viewsPerDay = getViewsPerDay()
  var content = ""
  viewsPerDay.forEach((row, i) => {
    content += row.date + "," + row.views + "\n"
  });
  return content;
}

download("medium-metrics-" + new Date().toISOString().slice(0, 10) + ".csv", getViewsPerDayText());