Evaluation Context Propagation

[beeme1mr]

Summary

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Evaluation context may be used to conditionally control the value returned from a flag evaluation. You could, for example, enable a feature for all users with a specific email domain. Using evaluation context propagation, application developers can set evaluation context where it's convenient (i.e. an auth service) and have it persist for the length of the request.
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Objective

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Define a specification for evaluation context propagation without introducing any third party dependencies in the OpenFeature SDK.

References

• OFEP
• Unleash Java Context Provider
• OTel Context

[beeme1mr]

There's a working proof of concept in the playground.

https://github.com/open-feature/playground/blob/main/packages/openfeature-js/src/index.ts

[toddbaert]

This needs a thorough OFEP, eventually.