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const express = require('express');
const app = express();
const HOST = process.env.HOST || '';
const PORT = process.env.PORT || 8080;
const optimizelyExpress = require('@optimizely/express');
const optimizely = optimizelyExpress.initialize({
sdkKey: '<Your_SDK_Key>',
datafileOptions: {
autoUpdate: true, // Indicates feature flags will be auto-updated based on UI changes
updateInterval: 1*1000 // 1 second in milliseconds
logLevel: 'info', // Controls console logging. Can be 'debug', 'info', 'warn', or 'error'
app.get('/', function(req, res, next) {
res.send('Optimizely Express Example')
app.listen(PORT, HOST);
console.log(`Example App Running on http://${HOST}:${PORT}`);
module.exports = app;
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