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@flags-sdk/launchdarkly
Advanced tools
The LaunchDarkly provider for the Flags SDK contains support for LaunchDarkly's Feature Flags.
The Statsig provider is available in the @flags-sdk/statsig module. You can install it with
npm i @flags-sdk/launchdarkly
NOTE: The LaunchDarkly Vercel integration must be installed on your account, as this adapter loads LaunchDarkly from Edge Config. The adapter can not be used without Edge Config.
Import the default adapter instance ldAdapter from @flags-sdk/launchdarkly:
import { ldAdapter } from "@flags-sdk/launchdarkly";
The default adapter uses the following environment variables to configure itself:
export LAUNCHDARKLY_CLIENT_SIDE_ID="612376f91b8f5713a58777a1"
export LAUNCHDARKLY_PROJECT_SLUG="my-project"
# Provided by Vercel when connecting an Edge Config to the project
export EDGE_CONFIG="https://edge-config.vercel.com/ecfg_abdc1234?token=xxx-xxx-xxx"
import { flag, dedupe } from "flags/next";
import { ldAdapter, type LDContext } from "@flags-sdk/launchdarkly";
const identify = dedupe(async (): Promise<LDContext> => {
return {
key: "user_123",
};
});
export const showBanner = flag<boolean, LDContext>({
key: "show-banner",
identify,
adapter: ldAdapter.variation(),
});
Create an adapter by using the createLaunchDarklyAdapter function:
import { createLaunchDarklyAdapter } from "@flags-sdk/launchdarkly";
const adapter = createLaunchDarklyAdapter({
projectSlug: "my-project",
ldClientSideKey: "612376f91b8f5713a58777a1",
edgeConfigConnectionString: process.env.EDGE_CONFIG,
});
Please check out the LaunchDarkly provider documentation for more information.
FAQs
LaunchDarkly provider for the Flags SDK
We found that @flags-sdk/launchdarkly demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 4 open source maintainers collaborating on the project.
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