TypeScript Types

The Glood Hydrogen SDK is built with TypeScript-first design, providing comprehensive type definitions for all interfaces, configurations, and data structures.

Core Configuration Types

GloodConfig

Main configuration interface for creating a Glood client.

interface GloodConfig {
  /** Glood API key for authentication */
  apiKey: string;

  /** Your Shopify domain (e.g., 'store-name.myshopify.com') */
  myShopifyDomain: string;

  /** App-specific configurations (optional - uses defaults if not provided) */
  apps?: {
    recommendations?: RecommendationsAppConfig;
    search?: SearchAppConfig;
    wishlist?: WishlistAppConfig;
  };

  /** Enable debug logging in development */
  debug?: boolean;

  /** Additional settings object */
  settings?: Record<string, any>;
}

Usage:

const config: GloodConfig = {
  apiKey: process.env.GLOOD_API_KEY!,
  myShopifyDomain: 'your-store.myshopify.com',
  debug: true,
};

PixelConfig

Configuration for pixel tracking per app.

interface PixelConfig {
  /** Enable/disable pixel tracking for this app */
  enabled: boolean;

  /** Pixel tracking endpoint */
  endpoint: string;

  /** Required consent types for pixel tracking */
  consent: readonly ConsentType[];
}

Usage:

const pixelConfig: PixelConfig = {
  enabled: true,
  endpoint: 'https://events.glood.ai',
  consent: ['analytics', 'marketing'],
};

App Configuration Types

RecommendationsAppConfig

Configuration specific to the recommendations app.

interface RecommendationsAppConfig {
  /** Main app endpoint for features and API calls */
  endpoint: string;

  /** Pixel tracking configuration */
  pixel: PixelConfig;

  /** Events this app should subscribe to (defaults to all events if not specified) */
  subscribedEvents?: EventType[];
}

SearchAppConfig

Configuration specific to the search app.

interface SearchAppConfig {
  /** Main app endpoint for features and API calls */
  endpoint: string;

  /** Pixel tracking configuration */
  pixel: PixelConfig;

  /** Events this app should subscribe to (defaults to all events if not specified) */
  subscribedEvents?: EventType[];
}

WishlistAppConfig

Configuration specific to the wishlist app.

interface WishlistAppConfig {
  /** Main app endpoint for features and API calls */
  endpoint: string;

  /** Pixel tracking configuration */
  pixel: PixelConfig;

  /** Events this app should subscribe to (defaults to all events if not specified) */
  subscribedEvents?: EventType[];
}

Client & App Types

GloodClient

The main client interface returned by createGlood().

interface GloodClient {
  /** Configuration used to create this client */
  config: GloodConfig;

  /** Debug mode enabled */
  debug: boolean;

  /** Registered apps */
  apps: Map<AppName, GloodApp>;

  /** Get all enabled apps */
  getEnabledApps(): GloodApp[];

  /** Get specific app by name */
  getApp(name: AppName): GloodApp | undefined;

  /** Add an app module to the client */
  use(appModuleOrFactory: GloodAppModule | ((config?: any) => GloodAppModule)): GloodClient;
}

GloodApp

Interface representing an individual app instance.

interface GloodApp {
  /** App name */
  name: AppName;

  /** Main app endpoint for features */
  endpoint: string;

  /** Pixel configuration */
  pixel: PixelConfig;

  /** Events this app subscribes to */
  subscribedEvents: EventType[];

  /** Analytics instance from Hydrogen useAnalytics hook */
  analytics?: any;

  /** Handle an analytics event */
  handleEvent(eventType: EventType, eventData: any, client: GloodClient): void;

  /** Set analytics instance on the app */
  setAnalytics(analytics: any): void;

  /** Update subscribed events for this app */
  setSubscribedEvents(events: EventType[]): void;
}

GloodAppModule

Function type for app module factories.

interface GloodAppModule {
  /** Create app instance with optional custom configuration */
  (): GloodApp;
}

Usage:

// App module functions return GloodAppModule
const recommendationsModule: GloodAppModule = recommendations();
const searchModule: GloodAppModule = search();
const wishlistModule: GloodAppModule = wishlist();

React Component Types

GloodProviderProps

Props for the GloodProvider React component.

interface GloodProviderProps {
  /** Glood client instance */
  client: GloodClient;

  /** Child components to wrap */
  children: React.ReactNode;

  /** Optional analytics instance (for advanced usage) */
  analytics?: any;
}

Usage:

function App() {
  return (
    <GloodProvider client={glood} loaderData={data}>
      <YourApp />
    </GloodProvider>
  );
}

Analytics Event Data Types

PageViewData

Data structure for page view events.

interface PageViewData {
  url: string;
  title?: string;
  referrer?: string;
  timestamp: number;
}

ProductViewData

Data structure for product view events.

interface ProductViewData {
  productId: string;
  productHandle: string;
  productTitle: string;
  productPrice: number;
  productVendor?: string;
  productType?: string;
  currency: string;
  timestamp: number;
}

SearchData

Data structure for search events.

interface SearchData {
  query: string;
  resultsCount: number;
  timestamp: number;
}

CollectionViewData

Data structure for collection view events.

interface CollectionViewData {
  collectionId: string;
  collectionHandle: string;
  collectionTitle: string;
  timestamp: number;
}

CartViewData

Data structure for cart view events.

interface CartViewData {
  cartId: string;
  totalPrice: number;
  itemCount: number;
  timestamp: number;
}

Pixel System Types

PixelEvent

Structure for pixel events in the transmission queue.

interface PixelEvent {
  endpoint: string;
  data: Record<string, any>;
}

PixelPayload

Complete pixel payload sent to Glood endpoints.

interface PixelPayload {
  events: Record<string, any>[];
  apiKey: string;
  shopDomain: string;
  timestamp: number;
}

Constant Types

AppName

Union type for available app names.

type AppName = 'recommendations' | 'search' | 'wishlist';

Usage:

const appName: AppName = 'recommendations'; // ✅ Valid
const invalidName: AppName = 'invalid'; // ❌ TypeScript error

EventType

Union type for all supported analytics events.

type EventType =
  | 'page_viewed'
  | 'product_viewed'
  | 'collection_viewed'
  | 'cart_viewed'
  | 'search_viewed'
  | 'search_submitted'
  | 'custom_promotion_viewed'
  | 'product_added_to_cart'
  | 'product_removed_from_cart';

Usage:

const event: EventType = 'product_viewed'; // ✅ Valid
const invalidEvent: EventType = 'invalid_event'; // ❌ TypeScript error

ConsentType

Union type for customer privacy consent types.

type ConsentType =
  | 'analytics'
  | 'marketing'
  | 'preferences'
  | 'sale_of_data';

Usage:

const consent: ConsentType[] = ['analytics', 'marketing']; // ✅ Valid
const invalidConsent: ConsentType[] = ['invalid']; // ❌ TypeScript error

Type Guards and Utilities

Type Guard Functions

Helper functions to check types at runtime:

// Check if value is a valid app name
function isAppName(value: string): value is AppName {
  return ['recommendations', 'search', 'wishlist'].includes(value);
}

// Check if value is a valid event type
function isEventType(value: string): value is EventType {
  return [
    'page_viewed',
    'product_viewed',
    'collection_viewed',
    'cart_viewed',
    'search_viewed',
    'search_submitted',
    'custom_promotion_viewed',
    'product_added_to_cart',
    'product_removed_from_cart'
  ].includes(value);
}

// Check if value is a valid consent type
function isConsentType(value: string): value is ConsentType {
  return ['analytics', 'marketing', 'preferences', 'sale_of_data'].includes(value);
}

Utility Types

Common utility types for working with the SDK:

// Extract app names from client
type EnabledApps<T extends GloodClient> = T['apps'] extends Map<infer K, any> ? K : never;

// Get app config type by name
type AppConfigType<T extends AppName> =
  T extends 'recommendations' ? RecommendationsAppConfig :
  T extends 'search' ? SearchAppConfig :
  T extends 'wishlist' ? WishlistAppConfig :
  never;

// Partial app configuration for overrides
type PartialAppConfig<T extends AppName> = Partial<AppConfigType<T>>;

Advanced TypeScript Usage

Generic App Factory

Create type-safe app factories:

function createAppFactory<T extends AppName>(
  appName: T,
  defaultConfig: AppConfigType<T>
) {
  return (config?: PartialAppConfig<T>): GloodAppModule => {
    return () => {
      // Implementation
      return {} as GloodApp;
    };
  };
}

// Usage with full type safety
const recommendationsFactory = createAppFactory('recommendations', {
  endpoint: 'https://storefront.glood.ai',
  pixel: {
    enabled: true,
    endpoint: 'https://events.glood.ai',
    consent: ['analytics', 'marketing'] as const,
  },
});

Type-Safe Configuration Builder

Build configurations with compile-time validation:

class GloodConfigBuilder {
  private config: Partial<GloodConfig> = {};

  apiKey(key: string): this {
    this.config.apiKey = key;
    return this;
  }

  shopifyDomain(domain: string): this {
    this.config.myShopifyDomain = domain;
    return this;
  }

  app<T extends AppName>(
    name: T,
    config: AppConfigType<T>
  ): this {
    if (!this.config.apps) {
      this.config.apps = {};
    }
    (this.config.apps as any)[name] = config;
    return this;
  }

  debug(enabled: boolean = true): this {
    this.config.debug = enabled;
    return this;
  }

  build(): GloodConfig {
    if (!this.config.apiKey) {
      throw new Error('API key is required');
    }
    if (!this.config.myShopifyDomain) {
      throw new Error('Shopify domain is required');
    }
    return this.config as GloodConfig;
  }
}

// Usage
const config = new GloodConfigBuilder()
  .apiKey(process.env.GLOOD_API_KEY!)
  .shopifyDomain('store.myshopify.com')
  .app('recommendations', {
    endpoint: 'https://storefront.glood.ai',
    pixel: {
      enabled: true,
      endpoint: 'https://events.glood.ai',
      consent: ['analytics'],
    },
  })
  .debug(true)
  .build();

Event Handler Typing

Type-safe event handlers:

type EventHandler<T extends EventType> = (
  eventData: T extends 'product_viewed' ? ProductViewData :
              T extends 'search_submitted' ? SearchData :
              T extends 'cart_viewed' ? CartViewData :
              Record<string, any>
) => void;

function createEventHandler<T extends EventType>(
  eventType: T,
  handler: EventHandler<T>
) {
  return (eventData: any) => {
    // Runtime validation could be added here
    handler(eventData);
  };
}

// Usage with type safety
const productViewHandler = createEventHandler('product_viewed', (data) => {
  // data is typed as ProductViewData
  console.log(`Product viewed: ${data.productTitle}`);
});

Type Imports

Import specific types as needed:

// Import all types
import type {
  GloodConfig,
  GloodClient,
  GloodApp,
  AppName,
  EventType,
  ConsentType,
  PixelConfig,
} from '@glood/hydrogen';

// Import specific app config types
import type {
  RecommendationsAppConfig,
  SearchAppConfig,
  WishlistAppConfig,
} from '@glood/hydrogen';

// Import event data types
import type {
  PageViewData,
  ProductViewData,
  SearchData,
  CartViewData,
} from '@glood/hydrogen';

// Import React component types
import type {
  GloodProviderProps,
} from '@glood/hydrogen';

Common TypeScript Patterns

Optional Configuration

Make app configurations optional with defaults:

interface OptionalGloodConfig {
  apiKey: string;
  myShopifyDomain: string;
  apps?: Partial<{
    recommendations: Partial<RecommendationsAppConfig>;
    search: Partial<SearchAppConfig>;
    wishlist: Partial<WishlistAppConfig>;
  }>;
  debug?: boolean;
}

function createGloodWithDefaults(config: OptionalGloodConfig): GloodClient {
  const fullConfig: GloodConfig = {
    ...config,
    apps: {
      recommendations: {
        endpoint: 'https://storefront.glood.ai',
        pixel: {
          enabled: true,
          endpoint: 'https://events.glood.ai',
          consent: ['analytics', 'marketing'],
        },
        ...config.apps?.recommendations,
      },
      // ... other app defaults
    },
  };

  return createGlood(fullConfig);
}

Conditional App Configuration

Configure apps based on conditions:

type ConditionalConfig<T extends boolean> = T extends true
  ? Required<GloodConfig>
  : Partial<GloodConfig>;

function createConditionalGlood<T extends boolean>(
  isProduction: T,
  config: ConditionalConfig<T>
): GloodClient {
  if (isProduction) {
    // Production requires full configuration
    return createGlood(config as Required<GloodConfig>);
  } else {
    // Development allows partial configuration
    return createGlood({
      ...config,
      debug: true,
    } as GloodConfig);
  }
}

Best Practices

1. Use Strict Types

Enable strict TypeScript settings:

// tsconfig.json
{
  "compilerOptions": {
    "strict": true,
    "noImplicitAny": true,
    "noImplicitReturns": true,
    "noUnusedLocals": true,
    "noUnusedParameters": true
  }
}

2. Type Imports

Use type-only imports when possible:

// ✅ Good - Type-only import
import type { GloodConfig } from '@glood/hydrogen';

// ❌ Avoid - Runtime import for types
import { GloodConfig } from '@glood/hydrogen';

3. Const Assertions

Use const assertions for literal types:

// ✅ Good - Const assertion preserves literal types
const consent = ['analytics', 'marketing'] as const;

// ❌ Avoid - Loses literal type information
const consent: ConsentType[] = ['analytics', 'marketing'];

4. Generic Constraints

Use generic constraints for type safety:

function configureApp<T extends AppName>(
  name: T,
  config: AppConfigType<T>
): void {
  // Implementation
}

// Usage is fully type-safe
configureApp('recommendations', {
  endpoint: 'https://storefront.glood.ai',
  pixel: {
    enabled: true,
    endpoint: 'https://events.glood.ai',
    consent: ['analytics', 'marketing'],
  },
});

For Developers

​TypeScript Types

​Core Configuration Types

​GloodConfig

​PixelConfig

​App Configuration Types

​RecommendationsAppConfig

​SearchAppConfig

​WishlistAppConfig

​Client & App Types

​GloodClient

​GloodApp

​GloodAppModule

​React Component Types

​GloodProviderProps

​Analytics Event Data Types

​PageViewData

​ProductViewData

​SearchData

​CollectionViewData

​CartViewData

​Pixel System Types

​PixelEvent

​PixelPayload

​Constant Types

​AppName

​EventType

​ConsentType

​Type Guards and Utilities

​Type Guard Functions

​Utility Types

​Advanced TypeScript Usage

​Generic App Factory

​Type-Safe Configuration Builder

​Event Handler Typing

​Type Imports

​Common TypeScript Patterns

​Optional Configuration

​Conditional App Configuration

​Best Practices

​1. Use Strict Types

​2. Type Imports

​3. Const Assertions

​4. Generic Constraints

​See Also

TypeScript Types

Core Configuration Types

GloodConfig

PixelConfig

App Configuration Types

RecommendationsAppConfig

SearchAppConfig

WishlistAppConfig

Client & App Types

GloodClient

GloodApp

GloodAppModule

React Component Types

GloodProviderProps

Analytics Event Data Types

PageViewData

ProductViewData

SearchData

CollectionViewData

CartViewData

Pixel System Types

PixelEvent

PixelPayload

Constant Types

AppName

EventType

ConsentType

Type Guards and Utilities

Type Guard Functions

Utility Types

Advanced TypeScript Usage

Generic App Factory

Type-Safe Configuration Builder

Event Handler Typing

Type Imports

Common TypeScript Patterns

Optional Configuration

Conditional App Configuration

Best Practices

1. Use Strict Types

2. Type Imports

3. Const Assertions

4. Generic Constraints

See Also