Feature flag exercise using LaunchDarkly

  1. Find the integration SDK key on the LaunchDarkly web console
  2. Complete the FeatureFlagService by implementing the interface
  3. Add the feature flag launchdarkly-training.hands-on to the '/' route of the express app
    • Navigate to http://localhost:3000 and see that it renders a page with a solid colour (blue/green)
    • Try using a user named blue.
    • Try using a user named green.
    • Try playing with the feature flag configuration on launchdarkly

checkout to the complete branch to see a working example