Hi everyone I have an issue with GB I setup some targeting g GrowthBook Users #announcements

Hi everyone. I have an issue with GB, I setup some...

colossal-alligator-31194

09/14/2023, 8:30 AM

Hi everyone. I have an issue with GB, I setup some targeting group on my feature. like for instance country not equal to 'GB'.

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trackingCallback: async (experiment, result) => {
    await sendSomeEvent(experiment, result)
},

when I test it manually everything seems right and trackingCallback ( and sendSomeEvent ) is not being called*. But* in larger scale when the code is on production I see events are being called for country GB which is not expected coz I want to exclude that country. ( I'm setting country as an attribute )

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growthBook.setAttributes({ country });

I don't understand why this is happening.

billions-xylophone-11752

09/14/2023, 11:11 AM

@colossal-alligator-31194 Can you confirm that you have the same targeting conditions applied to your

production

environment? The screenshot you shared shows your

preprod

environment rules.

colossal-alligator-31194

09/14/2023, 11:22 AM

yes they are the same.

colossal-alligator-31194

09/14/2023, 11:22 AM

both env have the same configuration.

colossal-alligator-31194

09/14/2023, 11:28 AM

We've selfhosted Growthbook and here is the main setup code, but as I said it's fine when I test it manually but since we've a lot of users a portion of them are getting this event which they shouldn't. My assumption is: 1. the way I'm setting attributes ? ( but it works fine for almost a lot of cases ) 2. the free plan of selfhosted limitation ? 3. race condition between initSelfHostedAPI and setGrowthBookAttrs

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export const growthBook = new GrowthBook({
  trackingCallback: async (experiment, result) => {
    await sendSomeEvent(experiment, result);
  },
});

const setGrowthBookAttrs = ({ id, country }: { id?: string; country?: string }) =>
  growthBook.setAttributes({
    id,
    ...(country ? { country } : undefined),
  });

export const initiateGrowthBook = ({  country }) => {
  const id = "Getting this from cookies";
  initSelfHostedAPI(growthBook);

  setGrowthBookAttrs({ id, country) }); // set attributes after initiating GB
};

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useLayoutEffect(() => {
    initiateGrowthBook({ country });
  }, []);

billions-xylophone-11752

09/14/2023, 1:25 PM

@colossal-alligator-31194 Hmm... yea, it's possible this could be a race-case issue.

country

may not be defined at the time of bucketing, but it is available by the time the trackingCallback is fired. I can confirm that this is not a limitation of the free self-hosted plan. One thing that might be helpful is when you're initializing GrowthBooth, you can set

enableDevMode: true

and then use our Chrome DevTool Plugin. This allows you to see what attributes GrowthBook has access to.

colossal-alligator-31194

09/14/2023, 1:47 PM

yeah I have the plugin actually. will look into it again.

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