Fun with Feature Flags by Wim Creuwels @ Spring I/O 2024 - summary and thoughts

• why use feature flag?
  - hide features (e.g., A/B testing)

• how to implement?
  - DIY or libs (e.g., unleash, togglz, ff4j)

• There is a spec for this: OpenFeature (lol)

• "Is it same with Spring Cloud Config?"
  - not much diff

• "Just boolean flags?"
  - Some evolution happens...
  - Flag types
  - Gradual rollout
  - Segments
  - Auth integration

Thoughts

• I'm shocked there is a spec for this...
• Segments is what is expected. but gradual rollout or auth integration are quite freshing for me