growthbookusers #ask-questions

Hey folks ! I’m not sure this is the right channel for that so feel free to redirect me elsewhere if needed 🙂 I have a specific feature setup I want to implement and I would need help validating if the way I did it is the right way Requirements I want to have a feature flag

ON

in the preview env but

OFF

in the production env, unless you have a specific user attribute (basically, when you are an employee of the company) My setup Enabled environnement: ✅ production ✅ preview Default value:

OFF

Override rules:

→ Preview

if
env
user attribute equal `dev`then serve
ON
(it would be perfect if I would not have to add any condition here)

→ Production

if
employee
user attribute equal
true
then serve
ON

This setup is working fine but it’s strange to me to have to “hack” the served value and to have to activate both env with a served value

OFF

by default Am I missing something? Thanks !

proud-family-69484

08/10/2022, 5:40 PM

Hey guys, trying a test using the Visual Editor to see what might be possible. I'm having trouble getting it to recognize the required script. I've tried putting it in both the <head> and towards the end of HTML where we load other libs, but I always get the "Missing Required Script" popup in the editor. Any idea what I might be doing wrong? I'm testing my site on localhost but I'm running a cloud-hosted Growthbook instance. Maybe that's the issue?

incalculable-breakfast-2720

08/16/2022, 2:23 PM

Hello Guys, I was about to push my changes and I am having this issue in sourcetree. Is anyone using sourcetree as well that can help? Thanks!

lemon-car-88589

08/24/2022, 3:05 PM

I am just starting out with GrowthBook and I am trying to use it to analyze a database I created with some mock data. Here are the columns in the database: id received_at context_library_name context_library_version title url uuid_ts context_adobe_analytics_marketing_cloud_visitor_id context_page_title original_timestamp timestamp user_id anonymous_id context_page_referrer path sent_at context_user_agent page_load_time browser_number The hypothesis is that page speed can be enhanced by using a different browser. This is the query I created to view the data in GrowthBook: SELECT anonymous_id, received_at as timestamp, "23" as experiment_id, "46" as variation_id, page_load_time, ( CASE WHEN context_user_agent LIKE '%Mobile%' THEN 'Mobile' ELSE 'Tablet/Desktop' END ) as device, ( CASE WHEN context_user_agent LIKE '% Firefox%' THEN 'Firefox' WHEN context_user_agent LIKE '% OPR%' THEN 'Opera' WHEN context_user_agent LIKE '% Edg%' THEN ' Edge' WHEN context_user_agent LIKE '% Chrome%' THEN 'Chrome' WHEN context_user_agent LIKE '% Safari%' THEN 'Safari' ELSE 'Other' END ) as browser FROM pages WHERE anonymous_id is not null AND page_load_time is not null When I attempt to view the results of the experiment it says "syntax error at or near ";". This is a partial view of the long SQL query that GrowthBook created. How did the ":" get in there and how can I remove it? (Also, can I use this database with GrowthBook? Am I on the right track? Now that I am thinking of this, perhaps the browser_number column should be a variation_id). -- page_load_time (duration) WITH __rawExperiment as ( SELECT anonymous_id, received_at as timestamp, "23" as experiment_id, "46" as variation_id, page_load_time, ( CASE WHEN context_user_agent LIKE '%Mobile%' THEN 'Mobile' ELSE 'Tablet/Desktop' END ) as device, ( CASE WHEN context_user_agent LIKE '% Firefox%' THEN 'Firefox' WHEN context_user_agent LIKE '% OPR%' THEN 'Opera' WHEN context_user_agent LIKE '% Edg%' THEN ' Edge' WHEN context_user_agent LIKE '% Chrome%' THEN 'Chrome' WHEN context_user_agent LIKE '% Safari%' THEN 'Safari' ELSE 'Other' END ) as browser FROM pages WHERE anonymous_id is not null AND page_load_time is not null ), __experiment as ( -- Viewed Experiment SELECT e.anonymous_id as anonymous_id, cast(e.variation_id as varchar) as variation, e.timestamp as conversion_start, e.timestamp + INTERVAL '72 hours' as conversion_end FROM __rawExperiment e WHERE e.experiment_id = 'pageloadtime' AND e.timestamp >= '2022-08-18 175000' ), __metric as ( -- Metric (page_load_time) SELECT anonymous_id as anonymous_id, m.value as value, m.timestamp as conversion_start, m.timestamp as conversion_end FROM ( SELECT user_id, anonymous_id, received_at as timestamp, page_load_time as value FROM pages WHERE page_load_time IS NOT NULL; ) m WHERE m.timestamp >= '2022-08-18 175000' ), __distinctUsers as (

late-teacher-86348

08/25/2022, 4:29 PM

We're close to launching GrowthBook and have one final question! Our product has both logged-in and anonymous users. Your FAQ <https://docs.growthbook.io/faq#what-do-i-use-for-an-id-attribute-in-the-sdk-if-my-users-arent-logged-in |suggests> we use two identifier attributes, but as far as we can tell, we <https://i.imgur.com/vQOJHGN.png |can only select one>. How might we achieve that suggestion from your FAQ? The goal is for any logged-in user to always see the same A/B test, but that A/B test might also be applicable to anonymous users.

most-finland-34024

08/26/2022, 12:12 PM

Hello. Quick question. I have just configured an A/B test against my next js webapp. Everything seems to be working great except that when I load the page I see the default value flash on the page and then it quickly gets replaced with one of the numbers from the A/B test. Has anyone else seen this before? Anything I can do to hide that default number?

microscopic-queen-6171

08/30/2022, 7:04 AM

Hey, I’m just getting started with using Growthbook for feature flag management and a question for AB-testing popped up. Say that I only want to run an experiment for one specific country. How would I best configure that? I can see that I can set up rules so that all other countries will resolve to the default value, but this would mean they are still included in the test analysis right? So we would have a lot of traffic for the default design, even though my split might be 50/50 for the country I want to test in. Is the solution to break it down in the analysis part using dimensions, or is there some other way? Thanks

nice-airline-943

08/31/2022, 4:35 AM

👋 Hello, team! I am getting started with self hosted growthbook deployment and trying to deploy it on a EC2 instance. but facing the issue where it can not connect o API's. I did updated the environment variables as per the docs. can you please help to figure out what's wrong?

fresh-nightfall-26542

08/31/2022, 7:21 AM

Hi, I would like to ask question, we are using self hosted growthbook using kubernetes, and planning to use it for production usage, is there any recommendation on cpu and memory setting for the server, also mongo db spec?

✔️ 1

fresh-football-47124

09/01/2022, 6:41 PM

I’ve not run into that before

boundless-autumn-39685

09/04/2022, 1:42 PM

Hi there! I'm relaly excited about growthbook 🙂 I'm first trying to connect it locally to snowflake, but without success (I've tested the credentials in other apps like dbeaver). Any idea? I'm afraid it's something related to the way I have to put the account name, but I've tried with region included and some variations but got the same error.

nice-airline-943

09/05/2022, 3:28 AM

Hi here! Is there any documentation available for deploying growthbook on multiple containers behind a load balancer?

boundless-autumn-39685

09/06/2022, 2:13 AM

Hi! How am I supposed to use these placeholders? Documentation does not seem to make it clear where "startDate" and "endDate" would go, at least I was not clear for me.

wide-stone-93283

09/06/2022, 7:33 PM

Hi everyone, quick question. Is there a way to log forced values the same way experiments are logged via the trackingCallback instance?

flaky-church-68788

09/08/2022, 3:20 PM

Hi, I have a questions about user_id vs anonymous_ids, we use rudderstack to send experiment_viewed events to bigquery. Rudderstack sends a user_id (logged in user id from our system) and an anonymous_id as columns in the experiement_viewed row. What then should we send to Growth book via the javascript setAttributes() function as the id parameter? should we send the user_id (logged in user id) or the anonymous_id or both?

calm-engineer-80052

09/12/2022, 8:53 AM

Hello, team! I found a mention of a Real-Time feature in the JS SDK code, however, I haven’t found documentation related to it. I’d be happy if you could explain the feature to me, in special how the

trackFeatureUsage

https://github.com/growthbook/growthbook/blob/main/packages/sdk-js/src/GrowthBook.ts#L164 works and what the request it makes to

<http://growthbook.io|growthbook.io>

https://github.com/growthbook/growthbook/blob/main/packages/sdk-js/src/GrowthBook.ts#L200 do.

microscopic-queen-6171

09/13/2022, 5:19 PM

Hey team, I recently upgraded to the newest version build (43c1e7a). I’m facing an issue that, whenever I try to add a new data source it will overwrite my only other data source. Or if I try and add a new type of data source it will say that I cannot change the type of an existing source. I’m stuck at one data source… Any ideas on why this might be?

worried-gpu-71540

09/20/2022, 1:08 PM

hi all...i am new here...how do you build growthbook from the source?

worried-gpu-71540

09/20/2022, 1:08 PM

is there any docs?

cool-apple-97384

09/22/2022, 4:47 AM

Hi all... I'm new here. Anyone can help me about several information when call SDK Instance. •

hostUrl

, it's dashboard url for self hosted growthbook? •

attributes

, it's user attributes or sdk attributes? If user attributes, we need to instance SDK after login to give experiments in specific user?

cool-apple-97384

09/23/2022, 9:25 AM

Hi all can anyone tell me about tracking callback? In this section, we need to track an event to self tracker when feature impressed? Or just callback after GrowthBook tracked the feature?

billions-arm-13894

09/23/2022, 1:00 PM

Hi all! I have issues with accessing the API on port 3100 and I'm not sure what could be the possible cause for that because it was working in dev environment. When I run docker-compose up I get this message:

Copy code

growthbook_1  |  | /usr/local/src/app/packages/back-end/dist/util/secrets.js:49
growthbook_1  |  |     throw new Error("Cannot use JWT_SECRET=dev in production. Please set to a long random string.");
growthbook_1  |  |     ^
growthbook_1  |  |
growthbook_1  |  | Error: Cannot use JWT_SECRET=dev in production. Please set to a long random string.

I haven't notice it before and currently that is the only thing that I found weird. Do you know if this could be a reason for not being able to access api. Here is the screenshot from UI also:

magnificent-vr-83716

09/23/2022, 3:02 PM

Tried to do some searching on this so forgive me if this has already been answered. For non self hosted usage, should the api keys be kept out of source control? First thought was yes but you would not be able to avoid that if using frontend clients. Might be a trivial answer that I missed in the docs as well. If this is unavoidable is self hosting a solution if we want to prevent anyone from accessing our feature flag data?

rapid-ghost-5775

09/27/2022, 7:47 AM

Metric 1: users that buy (purchases, binomial) Metric 2: product revenue (sum) Metric 3: duplicate of metric 2, with 1 addition: use denominator: metric 1) Now, in the results, the denominator matches metric 1, but the numerator does not match Metric 2. Am I missing something?

microscopic-queen-6171

09/27/2022, 7:56 AM

Hey guys, a question about the inferential statistics. If a sample ratio mismatch is observed in the experiment, does it somehow invalidate the conversions or inferential statistics, or is it solely an indicator that there might be a bug in the implementation? Thanks

cool-apple-97384

09/28/2022, 4:53 AM

Hi guys, to create several condition for a/b testing I see in GB SDK features just have two condition a or b. In case we have 3 condition for example a,b,c can we use experiments? But, how to retrieve experiments directly? I see to access experiment we need to access via feature. Can someone help me? Thanks.

narrow-printer-24953

09/28/2022, 6:01 PM

Hey, team! I just started using GrowthBook in our React application. Going through the documentation, I saw a comment that got me intrigued:

Copy code

// Load feature definitions from API
  // In production, we recommend putting a CDN in front of the API endpoint
  fetch('api-endpoint')
    .then((res) => res.json())
    .then((json) => {
      growthbook.setFeatures(json.features);
    });

What I’d like to know is why are putting a CDN in front of the API endpoint recommended in this instance? Is the API endpoint private?

breezy-xylophone-59782

09/28/2022, 8:29 PM

Hello! I am using the cloud version of GrowthBook. When I try to add a new data source, I receive the message “Could not find existing data source id” When a I try for the second time, the data source is saved but there is not schema in database. I’ve tried with Big Query, and MySQL Am I missing something?

worried-planet-2191

09/30/2022, 10:53 AM

This message was deleted.

dazzling-quill-18166

10/04/2022, 10:11 AM

Hello, I've got a problem with growthbook experiments. Consider this example. 1. I'm setting a cookie for a user

guestId

and passing it to

setAttributes

2. in growthbook GUI I've got 1 feature created

test-feature

with override rule set to

experiment

and 1 experiment corresponding with the feature 3.

guestId

was generated for the user when I had traffic set to

100%

and traffic split set to

old-view: 1

and

new-view: 0

4. After some tests I wanted to manipulate

traffic split

parameters so that I put

100%

old-view: 0

and

new-view: 1

5. Unfortunately for the same

guestId

I'm still receiving

old-view

variation My question is whether this behaviour is expected according to this piece of documentation

Copy code

In the vast majority of cases, you want to split traffic based on either a logged-in user id or some sort of anonymous identifier like a device id or session cookie. As long as the user has the same value for this attribute, they will always get assigned the same variation.

Only if I delete

guestId

and generate new one it seems that I receive proper variation. Thanks for your answer.