Storage solution for simple JSON data

io.js

const path = require('path');
const fs = require('fs-extra');

const ROOT = path.resolve(`${__dirname}/..`);
const RESULTS = `${ROOT}/results.json`;

if (!fs.pathExistsSync(RESULTS)) {
  fs.writeJSONSync(RESULTS, []);
}

const getResults = async () => fs.readJSON(RESULTS);

const getLastResults = async () => {
  const results = await getResults();

  return results[results.length - 1] || null;
};

const updateResults = async (row) => {
  const results = await getResults();
  results.push(row);
  await fs.writeJSON(RESULTS, results, { spaces: 2 });

  return results;
};

module.exports = {
  getResults,
  getLastResults,
  updateResults,
};