Open source platform for stress free deployments, measured impact, and smarter decisions.

GrowthBook Users

From inside the container:
```curl <http://localhost:3100>
{"name":"GrowthBook API","production":true,"api_host":"<http://localhost:3100>","app_origin":"<https://localhost:3000>","config_source":"db","email_enabled":false,"build":{"sha":"cf216ccc76a9d54e4bd793781e3e1d2e45385548","date":"2023-05-18T14:47:09Z"}}root@growthbook-api-web-685f59dbdf-fgxvn:/usr/local/src/app#```
So why is the frontend unable to communicate with the API?

Are you getting a CORS error or any other message in console?

you can set an environment variable: CORS_ORIGIN_REGEX to match the domains GrowthBook is running on

Screenshot_2023-05-20_at_9_16_01_AM.png

I mage the change that <@U04D18P8B5Z> suggested using
```        APP_ORIGIN: <https://my.growthbook.mydomain.com>
        API_HOST: <https://my.growthbook.mydomain.com>```
but now I am getting

The question is: the front end is trying to connect to the backend using the value of `API_HOST`? Is so, why is failing given that `<http://localhost:3100>` works from inside the pod?

using the same value for APP_ORIGIN and API_HOST wont work

it will send api request to itself - which will return html, as you’re seeing there

I think you were very close to getting it to work

So given that the instance is exposed at `<https://my.growthbook.mydomain.com>` what should the values for `API_HOST` / `APP_ORIGIN` be?

The API_HOST must be a routable address to the api container from the front end app. The APP_ORIGIN is used for the CORS headers to make sure the request from the front end is from the right host. 