Reflect — Docs

Web SDK

Reflect Web SDK — session tracking, UTM capture, web-to-app attribution, cross-domain tracking. Lightweight, first-party cookies only.

Installation

Script tag (UMD)

<script src="https://cdn.jsdelivr.net/gh/bablu147/reflect-sdk-web@v1.1.0/dist/reflect-web.umd.js"></script>
<script>
  ReflectWeb.initialize({
    appKey: 'app_live_...',
    baseUrl: 'https://api.reflect.cloud',
  });
</script>

npm / bundler (ESM)

npm install github:bablu147/reflect-sdk-web#v1.1.0

import { ReflectWeb } from '@reflect-sdk/web';

ReflectWeb.initialize({
  appKey: 'app_live_...',
  baseUrl: 'https://api.reflect.cloud',
});

Configuration

Field	Type	Default	Notes
`appKey`	string	—	Required. Your app key from the admin panel.
`companyKey`	string?	—	Optional for multi-tenant setups.
`baseUrl`	string?	—	Server endpoint.
`debug`	bool	false	Log events to console.
`cookieDomain`	string?	auto	Domain to scope the first-party cookie.
`crossDomainDomains`	string[]?	—	Domains for cross-domain tracking.
`autoPageView`	bool	false	Auto-track page views on init.

API reference

Method	Description
`initialize(config)`	Init the SDK, start flush timer, optionally track page view
`trackEvent(name, props?)`	Track a custom event
`trackPageView(url?)`	Track a page view (auto-captures URL, path, title)
`setUserId(userId)`	Set current user ID
`clearUserId()`	Clear user ID
`setUserProperties(props)`	Set user-level properties
`getWebSessionId()`	Get the current session ID
`getInstallUuid()`	Get the persistent device UUID
`decorateUrl(url)`	Add `_reflect_xd` param for cross-domain tracking
`setEnabled(enabled)`	Enable/disable tracking
`trackRevenue(params)`	Track a revenue event (amount, currency, product)
`setGlobalProperty(key, val)`	Set a property merged into every event
`unsetGlobalProperty(key)`	Remove a global property
`clearGlobalProperties()`	Remove all global properties
`setAudience(...tags)`	Tag the install for audience segmentation
`deleteUserData()`	GDPR — delete all user data and cookies
`flush()`	Force-flush queued events
`destroy()`	Clean up timers, flush remaining events

Usage

// Track events
ReflectWeb.trackEvent('cta_clicked', { button: 'hero_install' });

// Track page views (or enable autoPageView in config)
ReflectWeb.trackPageView();

// User identity
ReflectWeb.setUserId('user_42');

// Cross-domain: decorate links to your other domains
const url = ReflectWeb.decorateUrl('https://app.example.com/onboard');
// → "https://app.example.com/onboard?_reflect_xd=sess_abc123"

What it collects

UTM parameters — auto-captured from URL on every page load
Referrer — document.referrer (filters same-origin)
Browser fingerprint — canvas hash, WebGL renderer, timezone, language, screen size, color depth
Session — 30-minute sliding window, stored in first-party cookie
Install UUID — persistent device ID in first-party cookie

Standard events (v1.1.0+)

import { ReflectWeb } from '@reflect-sdk/web';

ReflectWeb.signUpWith('google');
ReflectWeb.addedToCart('pro_plan', 29.99, 'USD');
ReflectWeb.checkoutBegan({ items: 1 });
ReflectWeb.adShown('banner', { network: 'gam' });

Revenue, global properties & GDPR

ReflectWeb.trackRevenue({ amount: 29.99, currency: 'USD', productId: 'pro_plan' });

ReflectWeb.setGlobalProperty('ab_group', 'variant_b');
ReflectWeb.setAudience('premium', 'enterprise');

// GDPR — delete user data + clear cookies
const deleted = await ReflectWeb.deleteUserData();

v1.1.0 — Feature parity

Standard event helpers, global properties, audience tagging, revenue tracking, event validation, session tracking, error capture, GDPR deletion. First-party cookies only — no third-party tracking. Events are batched (max 100) and flushed every 10s or via navigator.sendBeacon on unload.