OpenFeature Web Provider

import { OpenFeature } from '@openfeature/web-sdk';
import { NexusProvider } from '@westyx-nexus/openfeature-web-provider';

await OpenFeature.setProviderAndWait(
  new NexusProvider({
    endpoint: 'https://api.westyx.dev',
    apiKey: 'wxp_...',
  })
);

const client = OpenFeature.getClient();
const showBanner = client.getBooleanValue('banner.enabled', false);

​

What’s new in v0.8.0

• Initial release - OpenFeature Web SDK provider for Westyx Nexus.
• Implements Provider interface from @openfeature/web-sdk ^1.3.
• Boolean flags via resolveBooleanEvaluation (maps to Nexus feature flags).
• String, number, and object resolution via Nexus configs (JSON-typed values).
• Automatic SSE connection with exponential backoff reconnect.
• Emits PROVIDER_CONFIGURATION_CHANGED on flag or config update via SSE.

​

Highlights

• Framework-agnostic - works with any browser TypeScript/JavaScript app, Angular, React, Vue, Svelte, etc.
• OpenFeature standard - use the vendor-neutral OpenFeature.getClient() API; swap providers without rewriting flag evaluation code.
• Live updates via SSE - the provider maintains a server-sent events connection and emits PROVIDER_CONFIGURATION_CHANGED within milliseconds of any flag or config change.
• Exponential backoff - SSE reconnects automatically with capped backoff (1 s to 30 s) on transient failures.
• Public key only - uses wxp_... browser keys. Secret keys are rejected.

​

Package

npm install @westyx-nexus/openfeature-web-provider @openfeature/web-sdk

​

Pages