OpenWhisk web action that returns the latest ten entries to the readings database

getLatestTenReadings.js

function action(args) {
  var request = require('sync-request');
  var res = request(
    'GET',
    'http://COUCHDB_HOST:COUCHDB_PORT/readings/_all_docs?limit=10&include_docs=true&ascending=true'
  );
  var readings = JSON.parse(res.getBody().toString()).rows.map(elem => elem.doc.reading);
  return {
    body: readings
  };
}