NodeJS Config Loader using configstore module

node-configstore-loader.js

const dotenv = require('dotenv');
dotenv.config();

const fs = require('fs');
const approot = require('app-root-path');
const _ = require('lodash');
const ConfigStore = require('configstore');
const app_name = process.env.APP_NAME || 'app_config';
const config_path = process.env.APP_CONFIG_PATH || approot + '/config';
const readdir_mode = process.env.APP_CONFIG_READDIR_MODE || 'recursive';

var readConfigs = function(mode = 'simple', path) {
  // mode: simple|recursive
  var values={};
  fs.readdirSync(path, {withFileTypes: true})
    .filter(file => {
      return (file.isFile() && (file.name.indexOf('.') !== 0) && (!_.includes(['index.html', 'index.js'], file.name)) && (file.name.slice(-3) === '.js')) || (file.isDirectory());
    })
    .forEach(file => {
      if(mode == 'recursive'){
        if(file.isDirectory()){
          values[file.name]= readConfigs(mode, path + '/' + file.name);
        }else{
          values[file.name.replace('.js', '')] = require(path + '/' + file.name);
        }
      }else{
        // simple
        values[file.name.replace('.js', '')] = require(path + '/' + file.name);
      }
    });
  return values;
};
var config_values= readConfigs(readdir_mode, config_path);

const config = new ConfigStore(app_name, config_values);
config.clear();
config.all= config_values;

module.exports = config;