> ## Documentation Index
> Fetch the complete documentation index at: https://docs.webapp.io/llms.txt
> Use this file to discover all available pages before exploring further.

# ConfigCat

[ConfigCat](https://configcat.com/) is a feature flag service for teams.

It allows you to enable/disable features remotely without redeploying code.

ConfigCat is cross-platform and works with your web, mobile, and server-side
applications.

Key features include basic flags, targeting, %-based rollouts, variations,
multiple environments, A/B testing, permissions, team management, SSO, 2FA, and
SDKs for 10+ platforms.

## Example Layerfile

```docker Layerfile theme={null}
FROM vm/ubuntu:18.04
RUN curl -sL https://deb.nodesource.com/setup_14.x | bash
RUN apt install nodejs
COPY . .
RUN npm install
SECRET ENV CONFIGCAT_AUTH_KEY
RUN curl "https://api.configcat.com/v1/products/dcd53ddb-8104-4e48-8cc0-5df1088c6113/environments" \\
    -X POST \\
    -u $CONFIGCAT_AUTH_KEY \\
    -H "Content-Type: application/json" \\
    -d '{"name": "webappio-'$JOB_ID'"}'
RUN BACKGROUND REACT_CONFIGCAT_ENV="layerci-$JOB_ID" npm run start
EXPOSE WEBSITE localhost:3000
```

## Setting up ConfigCat with webapp.io

Using a Layerfile like the one above creates a ConfigCat environment. For more
information on how to set up ConfigCat, check out their
[documentation pages](https://configcat.com/docs/getting-started/).