Node.js experiments installation

npm install posthog-node

import { PostHog } from 'posthog-node'

const client = new PostHog(
    '<ph_project_api_key>',
    {
        host: 'https://us.i.posthog.com'
    }
)

const experimentFlagValue = await client.getFeatureFlag('your-experiment-feature-flag', 'user distinct id')

if (experimentFlagValue === 'test' ) {
    // Do something differently for this user
} else {
    // It's a good idea to let control variant always be the default behaviour,
    // so if something goes wrong with flag evaluation, you don't break your app.
}