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Type-safe Feature Flagging in OpenFeature: Lessons Learned From Using Feature Flags at Google - Michael Beemer, Dynatrace & Florin-Mihai Anghel, Google

Feature flags are a great way to release software faster while minimizing deployment risks. They allow for controlled releases of new or complex features. However, a common issue with most feature flag SDKs in use today is that they rely on hardcoded strings to identify feature flags, leaving code vulnerable to typos or references to stale flags. This can lead to a mismatch between flags used in code and flags configured in your flag management system, resulting in unexpected application behavior.

In this talk, we will discuss a solution to this challenge using OpenFeature, a vendor-agnostic, community-driven API for feature flagging. Inspired by lessons learned at Google, we've designed the OpenFeature CLI to seamlessly integrate into your development workflow. We'll demonstrate how strongly typed feature flag accessors, created with the CLI, can be used to overcome these issues while also significantly improving the developer experience.