Read folders with multiple yaml files and parse in a single object-

readYamlFiles.js

// project
// --path
// ----config.yml
// --path2
// ----config.yml

// { project: { path: { config: object }, path2: { config: object } } }

const globby = require('globby');
const fs = require('fs');
const yaml = require('yaml');
const _ = require('lodash');

async function readYamlFiles(rules = ['**/*.yaml|*.yml']) {
  const paths = await globby(rules);
  return paths.reduce((memo, path) => {
    try {
      const split = path.replace(/(\.yaml|\.yml)/g, '').split("/")
      const object = yaml.parseAllDocuments(fs.readFileSync(path, 'utf-8'))
      const keys = split.join('.')

      return _.set(memo, keys, object)
    } catch(e) {
      console.error(e)
      return memo
    }
  }, {})
}

module.exports = { readYamlFiles }

readYamlFiles().then(result => {
  fs.writeFileSync("data.json", JSON.stringify(result, null, 2))
})