Installation

Pick one runtime package for your process. Do not import @flagfix/browser inside a Node service, and do not import @flagfix/node inside a browser bundle. @flagfix/sdk-core is pulled in transitively — you do not install it on purpose.

npm install @flagfix/browser
# or: pnpm add @flagfix/browser
# or: yarn add @flagfix/browser

Configure apiHostCopy Anchor Link

Set apiHost to the FlagFix API your company uses. The hosted origin is https://api.flagfix.io.

createFlagFix({
  clientKey: process.env.NEXT_PUBLIC_FLAGFIX_CLIENT_KEY!,
  apiHost: process.env.NEXT_PUBLIC_FLAGFIX_API_HOST!,
});

If apiHost is omitted, the SDK falls back to a placeholder host. Set it explicitly in every environment.

VerifyCopy Anchor Link

npm ls @flagfix/browser @flagfix/node @flagfix/react

Next: Initialization or Unit testing.