fuxi-insight-server/server/config/index.js

const config = require('../../config');
const dev = require('./config.dev');
const prod = require('./config.prod');

Object.assign(config, dev);
if (config.isProd()) {
  Object.assign(config, prod);
}

process.env.LOG_LEVEL = config.logLevel || 'all';
module.exports = config;