From Split

import { SplitFactory } from '@splitsoftware/splitio';const factory = SplitFactory({  core: {    authorizationKey: 'YOUR_SERVER_SIDE_API_KEY',  },  impressionListener: {    logImpression: (impressionData: { impression: unknown }) => {      console.log(impressionData.impression);    },  },});const splitClient = factory.client();await splitClient.ready();

import { AvsbServer } from '@avsbhq/node';const server = new AvsbServer({ sdkKey: process.env.AVSB_SDK_KEY! });const result = await server.onReady();// Wire exposure events (replaces impressionListener)server.on('exposure', ({ experimentId, variationId, visitorId, properties }) => {  console.log({ experimentId, variationId, visitorId, flagKey: properties?.flagKey });});

import { SplitFactory } from '@splitsoftware/splitio';const factory = SplitFactory({  core: {    authorizationKey: 'YOUR_BROWSER_API_KEY',    key: 'u_123',  },});const splitClient = factory.client();await splitClient.ready();

import { AvsbClient } from '@avsbhq/browser';const client = new AvsbClient({  sdkKey: 'sdk_production_xxxxxxxxxxxxxxxx',  context: { kind: 'user', key: 'u_123' },});await client.onReady();

// Key passed per callconst treatment = splitClient.getTreatment('u_123', 'show_banner', { plan: 'pro' });// No partial attribute update: pass new attributes on each call

// Server: context per callconst flag = server.forUser({ kind: 'user', key: 'u_123', plan: 'pro' })  .getBoolFlag('show_banner', false);// Browser: bound context, explicit mutationsclient.identify({ kind: 'user', key: 'u_123', plan: 'pro' });client.updateAttributes({ plan: 'enterprise' }); // partial patch// Anonymous → identified stitching at sign-up. Synchronous: it records the// moment, it does not move past decisions.client.alias(  { kind: 'user', key: 'anon_xyz' },  { kind: 'user', key: 'u_123' });

// Boolean splitconst treatment = splitClient.getTreatment('u_123', 'show_banner');if (treatment === 'on') { /* ... */ }// Treatment with config (dynamic config attached to variation)const result = splitClient.getTreatmentWithConfig('u_123', 'checkout_redesign');// result.treatment, result.config (JSON string)const config = JSON.parse(result.config ?? '{}');// Batch evaluationconst treatments = splitClient.getTreatments('u_123', ['flag_a', 'flag_b']);

// Boolean flagconst flag = server.forUser({ kind: 'user', key: 'u_123' })  .getBoolFlag('show_banner', false);if (flag.isEnabled()) { /* ... */ }// flag.variationKey → 'on' | 'off' | null// Flag with JSON config: the JSON value is directly typedinterface CheckoutConfig { ctaText: string; showPromo: boolean }const checkoutFlag = server.forUser({ kind: 'user', key: 'u_123' })  .getJsonFlag<CheckoutConfig>('checkout_redesign', { ctaText: 'Buy', showPromo: false });const { ctaText, showPromo } = checkoutFlag.value;// All flags (no batched eval needed; all evaluate synchronously from in-memory datafile)const allFlags = client.getAllFlags();

splitClient.track('user', 'u_123', 'purchase_completed', 49.99, { orderId: 'ord_99' });

// Server. `revenue` is money in major units; `value` is the separate// numeric-metric column. Conversion events do not store properties, so// Split's `orderId` above has no A vs B equivalent on this call.server.track('purchase_completed', {  context: { kind: 'user', key: 'u_123' },  revenue: 49.99,});// Browser (context bound)client.track('purchase_completed', { revenue: 49.99 });

// Use the account ID as the key to get account-scoped trafficconst treatment = splitClient.getTreatment('org_42', 'enterprise_feature', { tier: 'enterprise' });

import type { MultiContext } from '@avsbhq/core';const ctx: MultiContext = {  kind: 'multi',  user:         { kind: 'user',         key: 'u_123' },  organization: { kind: 'organization', key: 'org_42', tier: 'enterprise' },};// In the dashboard, set hashAttribute to 'organization.key' for org-scoped rulesserver.forUser(ctx).getBoolFlag('enterprise_feature', false);

client.on('configUpdate', ({ publishedAt, reason }) => {  // reason: 'poll' | 'stream' | 'manual'});client.on('flagChange', ({ flagKey, previousValue, newValue }) => {  // A specific flag value changed});

import { AvsbProvider } from '@avsbhq/react';import { fetchDatafile } from '@avsbhq/browser/server';const datafile = await fetchDatafile(process.env.AVSB_SDK_KEY!);<AvsbProvider sdkKey="..." context={ctx} bootstrap={datafile ?? undefined}>  <YourApp /></AvsbProvider>

splitClient.destroy();

await server.close(); // flushes buffered events, stops polling

const factory = SplitFactory({  core: { authorizationKey: 'localhost' },  features: {    show_banner: 'on',    checkout_redesign: 'treatment_a',  },});

import { createMockClient } from '@avsbhq/test';const mock = createMockClient({  flags: {    show_banner: true,    checkout_redesign: { ctaText: 'Get started', showPromo: true },  },});