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Version: 2.0.0

Node.js - 5 Minute Test

Get Featureflow running in your Node.js application in under 5 minutes.

Prerequisites​

If you haven't already, create a free Featureflow account. New accounts include a default project with test and production environments, plus an example feature.

1. Clone the Example Project​

git clone https://github.com/featureflow/featureflow-fiveminute-node
cd featureflow-fiveminute-node
npm install

2. Add Your API Key​

Edit helloworld.js and replace the placeholder with your Server Environment API Key. You can find this under the API Keys link on your project page.

const featureflow = new Featureflow.Client({ apiKey: 'sdk-srv-env-YOUR_API_KEY' });

featureflow.ready(function() {
    if (featureflow.evaluate('example-feature').isOn()) {
        console.log('The variant is on!');
    } else {
        console.log('The variant is not on!');
    }
});

3. Run the Program​

node helloworld.js

With the default configuration, you should see:

The variant is not on!

4. Toggle the Feature​

In the Featureflow dashboard, enable the example-feature in your environment:

Feature Targeting

Run the program again:

node helloworld.js

Now you should see:

The variant is on!

Congratulations! You've successfully integrated Featureflow.

important

The Featureflow client must be a singleton. In production applications, create the client once at startup. See the Express example for a real-world implementation.

Next Steps​