Hey all, just wondering if there’s a way to get resolved feature flag for a given user in the backend? For example I would like to know what value that user A received for

feature-name

. Then use this value on backend to control execution flow based on that value. If not, is there an alternative approach for my use case?

I'm assuming you are evaluating the feature on the front-end, but want to somehow pass that value to the back-end, is that right? If so, there are 2 main options: 1. Explicitly pass the feature value to your back-end in your API calls (e.g. with a querystring or in the request body) 2. Implement one of our back-end SDKs and re-evaluate the feature there. As long as the user attributes are the same as the front-end, it will result in the same feature value.

That’s correct! @future-teacher-7046 > 1. Implement one of our back-end SDKs and re-evaluate the feature there. As long as the user attributes are the same as the front-end, it will result in the same feature value. Is only

userId

sufficient? And is this using

Growthbook.setAttributes

? Not all the fields are available on backend

You don't necessarily need all the attributes to be the same, but the ones used by your feature flag. For example, if you have a rule to serve a feature value only to users with

browser = "chrome"

, you need to make sure that

browser

attribute is available on the back-end. Otherwise, you could get a different feature value in the front-end and back-end. So there's definitely risk going with this approach since if you forget to set a specific attribute or there's some other mismatch going on, you could get into a conflicted state. Explicitly passing feature flag values in the API requests is safer, but requires more work during implementation.