go-feature-flag

Feature flags with no complex system to maintain!

What is go-feature-flag?

A simple and complete feature flag solution, without any complex backend system to install, all you need is a file as your backend.

No server is needed, just add a file to your central system and all your services will react to the changes in this file.

If you are not familiar with feature flags, also called feature Toggles, you can read this article from Martin Fowler where he explains why this is a great pattern.

I've also written an article that explains why feature flags can fasten your iteration cycle.

go-feature-flags supports:

• Storing your configuration flags file on various locations (HTTP, S3, GitHub, file).
• Configuring your flags in various format (JSON, TOML and YAML).
• Adding complex rules to target your users.
• Use complex rollout strategy for your flags :
  • Run A/B testing experimentation.
  • Progressively rollout a feature.
  • Schedule your flag updates.
• Exporting your flags usage data (s3, log and file).
• Getting notified when a flag has been changed (webhook and slack).