Hi! I'm trying to use the GrowthBook DevTools, but it seems like changing the current value of a feature flag in the DevTools does not have any effect on my application (also reloading has no effect). This is my provider implementation (running on Next.js v12.1.6):

import { ReactNode, useEffect } from "react";
import { GrowthBook, GrowthBookProvider } from "@growthbook/growthbook-react";
import { useUser } from "src/lib/auth";
import useSWR from "swr";

const growthbook = new GrowthBook();

async function fetcher() {
  const res = await fetch(process.env.NEXT_PUBLIC_GROWTHBOOK_FEATURES_ENDPOINT);
  if (res.status !== 200) {
    return null;
  }
  const result = await res.json();
  return result?.features;
}

export default function MyGrowthBookProvider({
  children,
}: {
  children: ReactNode;
}) {
  const { data: featureFlags } = useSWR("feature-flags", fetcher);
  const user = useUser();

  useEffect(() => {
    growthbook.setFeatures(featureFlags);
  }, [featureFlags]);

  useEffect(() => {
    growthbook.setAttributes({
      id: user.data?.id,
    });
  }, [user.data]);
  return (
    <GrowthBookProvider growthbook={growthbook}>{children}</GrowthBookProvider>
  );
}

<MyGrowthBookProvider />

is used in

_app.tsx

(wrapping

<Component />

) The feature flagging works fine, only the dev tool doesn't have any effect.

Hi GB team, if we want to add support of AWS DynamoDB instead of MongoDB, where should we look into? Thanks for any hints…

@future-teacher-7046 When I’m setting up the metrics, is it possible to use a boolean based condition, not just a string?

Hi guys! I’m having some package/module issues using the SDK in node (for a backend service). I’ve setup a typescript project, installed a bunch of dependencies and everything works (including building the app with tic) except loading the growthbook sdk at runtime. I’m getting the following error:

import { GrowthBook } from "@growthbook/growthbook";
     ^^^^^^^^^^
SyntaxError: Named export 'GrowthBook' not found. The requested module '@growthbook/growthbook' is a CommonJS module, which may not support all module.exports as named exports.
CommonJS modules can always be imported via the default export, for example using:

import pkg from '@growthbook/growthbook';
const { GrowthBook } = pkg;

My IDE (Vscode) has no problem loading the sdk as an ES6 module. No other libs are causing any issues loading them with import. Just to humor node, I tried the suggestion and got the following error:

(node:20837) Warning: To load an ES module, set "type": "module" in the package.json or use the .mjs extension.
/Users/xxxx/node_modules/@growthbook/growthbook/dist/esm/index.js:1
export { GrowthBook } from "./GrowthBook";
^^^^^^

SyntaxError: Unexpected token 'export'
  at Object.compileFunction (node:vm:352:18)
  at wrapSafe (node:internal/modules/cjs/loader:1033:15)
  at Module._compile (node:internal/modules/cjs/loader:1069:27)
  at Module._extensions..js (node:internal/modules/cjs/loader:1159:10)
  at Module.load (node:internal/modules/cjs/loader:981:32)
  at Module._load (node:internal/modules/cjs/loader:827:12)
  at ModuleWrap.<anonymous> (node:internal/modules/esm/translators:170:29)
  at ModuleJob.run (node:internal/modules/esm/module_job:198:25)
  at async Promise.all (index 0)
  at async ESMLoader.import (node:internal/modules/esm/loader:409:24)

My tsconfig.json is as follows

{
  "compilerOptions": {
    "target": "ES2022",
    "module": "es6",
    "lib": [
      "ES2022",
      "dom"
    ],
    "moduleResolution": "node",
    "rootDir": ".",
    "outDir": "build",
    "allowSyntheticDefaultImports": true,
    "importHelpers": true,
    "alwaysStrict": true,
    "sourceMap": true,
    "forceConsistentCasingInFileNames": true,
    "noFallthroughCasesInSwitch": true,
    "noImplicitReturns": true,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "noImplicitAny": false,
    "noImplicitThis": false,
    "strictNullChecks": false
  },
  "include": [
    "src/**/*",
    "__tests__/**/*"
  ]
}

Versions: • `node`: 18.3.0 • `@growthbook/growthbook`: 0.18.0 • `tsc`: 4.7.2 Cmd to build is

tsc -p tsconfig.json

Cmd to run

node build/src/main.js

I spent a good deal of time yesterday trying to figure out the issue but to no avail. Any ideas/suggestions are much appreciated!

Hey everyone, I recently completed a C# port of the GrowthBook SDK. I saw the growthbook-dotnet project, but wasn't able to determine the status of it, so I went ahead and wrote my own. The lib is available on NuGet and GitHub. If nobody has contributed a C# lib to the main project already, I'd be glad to do so.

Hey all, we’re migrating our locally hosted growthbook and cannot seem to set up the dimensions right. Always hitting an error in the automatically generated result queries. Context. We used the config.yml example from the docs, set a device as a dimension inside the datasource/settings/queries and get the following error in Growthbook (screenshot). Comparing the query to our older version, where we set the instance without config.yml, there the only difference is the old query is also grouping by dimension. The setup with config.yml is not optional as it’s easier for our deployment strategy. I’ve tried all variants of config.yml that I could think of and always have various errors. Any ideas?

hey found a bug on the features list, I filtered by a tag which only had 1 feature, I then went into that feature and removed the tag from that feature, and went back to the features list and was unable to turn off the tag for the filters and the list had no items. Had to create a new feature, give it that tag, then turn off the filter, etc to fix @future-teacher-7046

hey @future-teacher-7046 @fresh-football-47124 I think all of our attributes just got reset back to default? we had a bunch of custom attributes and now this?

Hello, I’m using the JavaScript SDK to implement Growthbook to my api. We are using Sails.js and fetching feature flag values via Sails policy. We are also trying to set attributes inside of the policy right before fetching from GrowthBook API. Do the attributes in the growthbook instance sustain through multiple requests? We are thinking about setting attributes dynamically based on the API call that is coming in, hence there are concerns with race condition depending on how attributes are sustained.

Hello all, looking for advice on how to set up multiple projects. 1. Use labels to separate project features but then the API will return all features for all projects

Hello! Is there any way to update the trackingCallback during the lifetime of a Growthbook instance in the React SDK?

Hello! Is GrowthBook cloud on AWS? I’m trying to understand what are the scenarios that my app would have trouble getting access to the feature flag values on Growthbook. Thanks.

Hi dev team~ we experienced frontend error when open the Dashboard page. Can anyone helped here?

@future-teacher-7046 How feasible would it be to develop “OR” operators for adding metrics (with Mixpanel data source)?

hello @future-teacher-7046 i have a quick question - is there a way to verify the distribution of the randomization of the split test - like a logger of how many for A or for B ?

Hi all, I just used the export/import configuration yaml feature (first screenshot). I exported the yaml from a GrowthBook instance and imported it in another, fresh one. The built of both instances is identical (Build: 2b811d1 (2022-11-02)). The technical environments of both GrowthBook instances are also identical. When importing the exported yaml, a client error occurs (see the second screenshot). For me it looks like the importer expects a "Jupyter Notebook Query Runner", which was never configured in the instance exported from. As an additional effect of the error, I now can't manage and delete the broken data sources any more. Is this a bug? If yes, how can one either repair or get rid of the data sources? FYI: @adventurous-dream-15065

Hey, how can I store user segments defined via the UI when redeploying a self-hosted growthbook, which is setup with config.yml?

Is this the right channel to ask about the growthbook chrome devtools plugin?

Hi Jack, thanks. You can view the full queries we run against your data from the three dot menu on the right. It is possible that the conversion windows, or the join to the experiment exposure reduces the values by a lot. You can run the query we run manually and adjust the date windows or other aspects to see whats happening

Hi GB team. We are using Clickhouse as our data source. And we found a timezone issue about the experiment query. Bellow is a query sample about experiment. It used

toDateTime

to filter the timestamp. And we use the UTC time in the experiment settings. but by default Clickhouse is using the server timezone which is not UTC. so the fix should be add UTC in the toDateTime function like this

toDateTime('2023-02-24 17:00:00', 'UTC')

Can anyone help on this?

__experiment as (-- Viewed Experiment
    SELECT
      e.user_id as user_id,
      toString(e.variation_id) as variation,
      e.timestamp as timestamp,
      e.timestamp as conversion_start,
      
      dateAdd(hour, 720, e.timestamp) as conversion_end
    FROM
        __rawExperiment e
    WHERE
        e.experiment_id = 'SOME_EXP_ID'
        AND e.timestamp >= toDateTime('2023-02-24 17:00:00')
        
    )

Hey you all; I need some help :3 What are some best practices for configuring CDN caching when using GrowthBook for experimentation? Are there any specific settings or configurations that we should be aware of to ensure that experiment variations are properly cached and displayed to our users?

HI, I have pull the latest growthbook image and deployed on AWS ECS behind the loadbalancer as usual. right now ALB Target group health check fails for growthbook API. Therefore, The container is terminated by target groups. Is there are any proper health check path for growthbook API path that return 200 as status code? After deploying. Growthbook APP - health check pass running on 3000 port Growthbook API_HOST - Health check fail for port 3100

We are seeing this error when attempting to apply dimensions to an analysis

function concat(character varying, "unknown", character varying) does not exist

this is in redshift The issue appears to be this clause:

REGEXP_REPLACE(
        MIN(
          CONCAT(
            cast(e.timestamp as varchar),
            '____',
            coalesce(cast(e.dimension as varchar), '__NULL_DIMENSION')
          )
        ),
        '.*____',
        ''
      ) as dimension,

I believe the

'____'

also needs to be wrapped in a cast() function Self-hosting: Build: f58a91e (2023-03-31)

Hey folks! We’ve recently integrated the Growthbook Kotlin SDK into our Android app, which unexpectedly resulted in our app download size almost tripling. The culprit is an overly broad

<http://consumer-rules.pro|consumer-rules.pro>

bundled with the library, spotted by another user and raised as an issue here. This issue has forced us to downgrade the library. It seems this repository doesn’t get much traffic - would you accept a contribution to fix this? Happy to fix up this rule, but equally happy to suggest a solution for a GB dev to adopt

Hello All, I have recently integrated Growthbook to my react project and using segment with redshift for data source. I just enabled an experiment and I am getting below error on the analysis. Does any one have any guidance on how to use Segment for data analysis inside growthbook? its throwing below error.

relation "staging_react_web.experiment_viewed" does not exist

Full SQL query is added to the thread of this message. I am currently not sending any events yet to segment. Is there any naming convention I should follow for the events name?

Hey everyone, I am trying to contribute to the GrowthBook SDKs. I installed Yarn at 1.22.19 and Node at 16.20.0. I ran yarn install without issues, and tried to go to the sdk-react package and run

yarn build

. However, it errors with this:

error TS2307: Cannot find module '@growthbook/growthbook' or its corresponding type declarations.

11 } from "@growthbook/growthbook";
          ~~~~~~~~~~~~~~~~~~~~~~~~

This error appears several times with different files. How do I navigate around this? In node_modules I see

@growthbook/growthbook

, so it should be installed properly.

Hey Team, I am having this issue in mac while running docker-compose command.

➜  growthbook git:(main) docker-compose up -d
[+] Running 0/1
 ⠦ growthbook Pulling                                                                                                                                                                                            3.5s
no matching manifest for linux/arm64/v8 in the manifest list entries

One more thing. The next.js documentation is no longer valid. The directory structure has changed in default next-js app.

Getting this error and a “Application error: a client-side exception has occurred (see the browser console for more information).” error page when trying to edit the metrics for a live experiment where there is an archived metric in the metrics list. That is the only obvious difference when compared to other experiments where the metric edit screen works as expected. Deleting the metric resolved the error for us, but potentially an edge case other people will hit and they won’t want to delete the metric involved.

framework-45b23bd899ce37ec.js:1 TypeError: Cannot read properties of undefined (reading 'name')
    at [eid]-548e64021226b7c9.js:1:104923
    at Array.map (<anonymous>)
    at lt ([eid]-548e64021226b7c9.js:1:104846)
    at Eo (framework-45b23bd899ce37ec.js:1:63195)
    at xi (framework-45b23bd899ce37ec.js:1:120435)
    at bs (framework-45b23bd899ce37ec.js:1:109371)
    at gs (framework-45b23bd899ce37ec.js:1:109299)
    at vs (framework-45b23bd899ce37ec.js:1:109162)
    at as (framework-45b23bd899ce37ec.js:1:105942)
    at ls (framework-45b23bd899ce37ec.js:1:104493)
du @ framework-45b23bd899ce37ec.js:1
a.componentDidCatch.t.callback @ framework-45b23bd899ce37ec.js:1
Ua @ framework-45b23bd899ce37ec.js:1
ki @ framework-45b23bd899ce37ec.js:1
bi @ framework-45b23bd899ce37ec.js:1
yi @ framework-45b23bd899ce37ec.js:1
(anonymous) @ framework-45b23bd899ce37ec.js:1
ws @ framework-45b23bd899ce37ec.js:1
ls @ framework-45b23bd899ce37ec.js:1
S @ framework-45b23bd899ce37ec.js:1
T @ framework-45b23bd899ce37ec.js:1

main-99bf36b98c03ec19.js:1 TypeError: Cannot read properties of undefined (reading 'name')
    at [eid]-548e64021226b7c9.js:1:104923
    at Array.map (<anonymous>)
    at lt ([eid]-548e64021226b7c9.js:1:104846)
    at Eo (framework-45b23bd899ce37ec.js:1:63195)
    at xi (framework-45b23bd899ce37ec.js:1:120435)
    at bs (framework-45b23bd899ce37ec.js:1:109371)
    at gs (framework-45b23bd899ce37ec.js:1:109299)
    at vs (framework-45b23bd899ce37ec.js:1:109162)
    at as (framework-45b23bd899ce37ec.js:1:105942)
    at ls (framework-45b23bd899ce37ec.js:1:104493)
J

Hello everyone! We have integrated GrowthBook into our tvOS application. However, we encountered an issue where it works perfectly fine on the simulator but fails to work on a real device. To address this problem, I have opened a pull request on GitHub (https://github.com/growthbook/growthbook-swift/pull/32) that describes the issue in detail and proposes a fix. I would greatly appreciate it if someone could take the time to review the pull request and provide feedback. Thank you all in advance for your help and support!