setUserAttributes()

function setUserAttributes(attributes: UserAttributes): void

interface UserAttributes {
  // Identity
  email?: string;
  firstName?: string;
  lastName?: string;
  phoneNumber?: string;

  // Location
  postalCode?: string;
  city?: string;
  state?: string;
  countryCode?: string;
  latitude?: string;
  longitude?: string;

  // Demographics
  dateOfBirth?: string;   // ISO 8601
  gender?: string;
  language?: string;     // deprecated: forwarded to Encore.setLanguage(), never stored as an attribute

  // Subscription
  subscriptionTier?: string;
  monthsSubscribed?: string;
  billingCycle?: string;
  lastPaymentAmount?: string;

  // Engagement
  lastActiveDate?: string;  // ISO 8601
  totalSessions?: string;

  // App-specific
  custom?: Record<string, string>;
}

import Encore from '@encorekit/web-sdk';

Encore.setUserAttributes({
  email: 'user@example.com',
  subscriptionTier: 'premium',
  city: 'San Francisco',
  countryCode: 'US',
  custom: { accountType: 'business', referralSource: 'google' },
});

Encore.setUserAttributes({ subscriptionTier: 'free' });
Encore.setUserAttributes({ city: 'New York' });
// Both subscriptionTier and city are now set.

function getUserAttributes(): UserAttributes

const attributes = Encore.getUserAttributes();