const fs = require('fs'); const path = require('path'); // replace IS_ELECTRON to yes, beacause axios relative url const envConfig = path.join(__dirname, './build/env-config.js'); fs.readFile(envConfig, 'utf8', function (err, files) { const result = files.replace(/{{IS_ELECTRON}}/g, 'yes'); fs.writeFile(envConfig, result, 'utf8', function (err) { if (err) { console.log(err); } }); });