From Statsig

import Statsig from 'statsig-node';await Statsig.initialize('secret-server-key', {  environment: { tier: 'production' },});// All calls via Statsig.checkGate(user, ...) singleton

import { AvsbServer } from '@avsbhq/node';const server = new AvsbServer({  sdkKey: process.env.AVSB_SDK_KEY!,});const result = await server.onReady();if (!result.success) {  // Hard failure: no datafile loaded. (The server SDK never sets  // `result.degraded`; that field only applies to the browser client.)}// All calls via server.forUser(ctx).getFlag(...)

import { StatsigClient } from '@statsig/js-client';const client = new StatsigClient('client-key', { userID: 'u_123' });await client.initializeAsync();

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

// User passed on every callconst user = { userID: 'u_123', custom: { plan: 'pro', country: 'US' } };Statsig.checkGate(user, 'my_gate');// Update user: call with new user object on next evaluationconst updatedUser = { userID: 'u_123', custom: { plan: 'enterprise' } };Statsig.checkGate(updatedUser, 'my_gate');

// Browser: context bound at construction, updated via identify/updateAttributesclient.identify({ kind: 'user', key: 'u_123', plan: 'pro', country: 'US' });// Partial attribute patch (no full re-identify needed)client.updateAttributes({ plan: 'enterprise' });// Anonymous → identified stitching, sent once per session at login.// Synchronous: it records the moment, it does not move past decisions.client.alias(  { kind: 'user', key: 'anon_device_xyz' },  { kind: 'user', key: 'u_123' });// Server: context passed per call; no mutation neededconst ctx = { kind: 'user', key: 'u_123', plan: 'pro', country: 'US' };server.forUser(ctx).getBoolFlag('my_gate', false);

// Feature gateconst showNewDash = Statsig.checkGate(user, 'new_dashboard');// Dynamic configconst uiConfig = Statsig.getConfig(user, 'ui_settings');const theme = uiConfig.get('theme', 'default');// Experimentconst exp = Statsig.getExperiment(user, 'checkout_experiment');const ctaText = exp.get('cta_text', 'Buy now');

interface UiSettings {  theme: string;}interface CheckoutConfig {  ctaText: string;}const uc = server.forUser(ctx);// Boolean gate equivalentconst showNewDash = uc.getBoolFlag('new_dashboard', false).value;// Or use isEnabled(): true only for a real decision (a rule, holdout,// bandit, or override, not just the default) with a truthy value.const gateOpen = uc.getBoolFlag('new_dashboard', false).isEnabled();// Dynamic config equivalent: the whole JSON valueconst uiConfig = uc.getJsonFlag<UiSettings>('ui_settings', { theme: 'default' }).value;const theme = uiConfig.theme;// Experiment: same as config; variation key tells you the armconst checkoutFlag = uc.getJsonFlag<CheckoutConfig>('checkout_experiment', { ctaText: 'Buy now' });const ctaText = checkoutFlag.value.ctaText;const arm = checkoutFlag.variationKey; // 'control' | 'treatment_a' | null

Statsig.logEvent(user, 'purchase', 49.99, { orderId: 'ord_99', sku: 'pro' });

// Server. Statsig's positional value becomes `revenue` for money in major// units, or `value` for a plain numeric metric. Conversion events do not// store properties, so Statsig's metadata (orderId, sku) has no A vs B// equivalent on this call.server.track('purchase', {  context: ctx,  revenue: 49.99,});// Browser (context bound)client.track('purchase', { revenue: 49.99 });

const user = {  userID: 'u_123',  custom: { companyID: 'org_42', companyTier: 'enterprise' },};// Target on companyID via custom fields in Statsig rules

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' on org-level rulesserver.forUser(ctx).getBoolFlag('enterprise_feature', false);

const unsub = client.on('flagChange', ({ flagKey, previousValue, newValue }) => {  // Re-render anything that depends on flagKey});// Call unsub() to stop listening

const bootstrapValues = Statsig.getClientInitializeResponse(user);// Serialize and embed in HTML for client pickup

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

const flag = server.forUser(ctx).getBoolFlag('checkout_redesign', false);if (flag.source === 'holdout') {  // User is in the holdout group: exclude from experiment metrics}

await Statsig.shutdown();

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

import { DynamicConfig } from 'statsig-node';// Use Statsig's local mode or override APIs in test environments

import { createMockClient } from '@avsbhq/test';const mock = createMockClient({  flags: {    new_dashboard: true,    ui_settings: { theme: 'blue' },    checkout_experiment: { ctaText: 'Get started' },  },});// Inject mock wherever AvsbServer or AvsbClient is expected