JSON to CSV

jsonToCsv.js

// https://stackoverflow.com/a/31536517/2262604
export const jsonToCsv = json => {
  const replacer = (key, value) => (value === null ? '' : value);
  const header = Object.keys(json[0]);
  const csv = [
    header.join(','),
    ...json.map(row => header.map(fieldName => JSON.stringify(row[fieldName], replacer)).join(',')),
  ].join('\r\n');
  return csv;
};