Configure environments

Create the environments you need. Typical slugs are development and production. You can mark one as production, archive an environment, and store its settings.

For each environment, create a key:

• CLIENT_SDK for browser and React. This key may ship in a client bundle. It can call evaluate-public only.
• SERVER_SDK for Node. Keep it on the server. It can call evaluate and evaluate-all.

The full key is shown once, in the form {prefix}.{secret}. Send it as X-FlagFix-Sdk-Key. You can rotate or revoke a key, and attach restrictions. A revoked key or an inactive environment returns HTTP 403.

Do not reuse a production server key in a browser example.