Hello Everyone! I'm new to Growthbook and exploring the product for our new project. I have setup growthbook proxy and now trying to connect it with cloud instance, it manages to pull the initial value of feature flag and save it in-memory but subsequent polling calls fail with below error :

2024-01-04 22:04:36 yarn run v1.22.19
2024-01-04 22:04:36 $ wsrun -p @growthbook/proxy -c start
2024-01-04 22:04:39 @growthbook/proxy
2024-01-04 22:04:39  | $ node dist/index.js
2024-01-04 22:04:42  | GrowthBook proxy running over HTTP1.1, port 3300
2024-01-04 22:04:44  | {"level":50,"time":1704386084520,"pid":79,"hostname":"ed5099bb0333","msg":"connection polling error: status code is 400"}
2024-01-04 22:04:44  | {"level":50,"time":1704386084526,"pid":79,"hostname":"ed5099bb0333"}
2024-01-04 22:04:44  | {"level":30,"time":1704386084527,"pid":79,"hostname":"ed5099bb0333","msg":"using in-memory cache"}
2024-01-04 22:04:42  | (node:79) [DEP0111] DeprecationWarning: Access to process.binding('http_parser') is deprecated.
2024-01-04 22:04:42  | (Use `node --trace-deprecation ...` to show where the warning was created)

Hello, I am using the

growthbook.setAttributes

method in order to implement basic targeting rules. It seems that when I call

setAttributes

for a given user, the set attributes do not persist in the next page view. For example, I have a test that I want to only run in the US. When a user lands on the homepage I call

setAttributes(country_code: 'US')

. The issue I'm seeing however is on the next page (say the user clicked on an article), attributes is now empty again. I was under the impression that these attributes would be saved in cookies or local storage and persist across the user's experience. Is this not the case? What is the recommended way of handling this.

If I turn on encrypted SDK endpoints, is there a guide on how I use the features with both javascript and c#?

Hi, I’m looking for more info about using experiment phases. What is their intended use case? It seems like it is possible to add multiple phases to an experiment but what would that do to the data/analysis? All the documentation I’ve found suggests that it just filters out data before the beginning of the phase, so what happens if there are multiple phases? If users are assigned before the beginning of the phase but come back after it starts would all of that user’s data be filtered out, or only the pre-phase data? Can srm checks account for multiple phases with potentially different splits?

Hi, can we export Mixpanel cohorts to GrowthBook so we can create feature flag conditions for different cohorts?

Hey, I'm reading the code for java sdk and see a class called

GBFeaturesRepository

It seems to implement caching and refreshing features at a defined interval. But there is no mention of this in docs and it seems incomplete in the sense where I'm unable to find the usages of

refreshCallbacks

array and implementation of `FeatureRefreshCallback`interface. Can someone help me in understanding this and should I use this class or manually fetch the features and pass to the constructor? Thanks in advance for help

Hey team 👋 Trying to migrate from a cloud GrowthBook instance (v807653a) to a self-hosted instance (v40f146d) via importing the config.yml and running into a

Datasource ds_19g61nla2082cc: error:0909006C:PEM routines:get_name:no start line

. Any idea what I'm doing wrong?

If we use custom data source, for example mysql, what is the best pratice database schema do we need to prepare? What table and field need to define? Is there any document mention about that?

Hi, I have difficulties to setup the first experiment with visual editor Background: I use Matomo Analytics as a Wordpress plugin, so the data source is MySQL. The Metrics has been set up already, it displays the results. I created an Experiment table with the suggested fields within the MySQL DB. But the Experiment script does not work. Should I write an extra module to put the data into this table?

track: function (experimentId, variationId) {
      analytics.track("Experiment Viewed", {
        experimentId,
        variationId,
      });
    },

What are the default api timeouts ?