The Commerce Engine TypeScript SDK provides type-safe, token-managed clients for all API domains. Each client automatically handles authentication, token refresh, and provides complete TypeScript support.

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Why Use SDK Clients?

Automatic Token Management

Never worry about token expiry or refresh logic - handled automatically behind the scenes.

100% Type Safety

Complete TypeScript support with IntelliSense for all parameters and responses.

Built-in Error Handling

Consistent error handling patterns with typed error responses.

Optimized Performance

Request optimization, caching, and middleware support out of the box.

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Available Clients

Each client provides the same methods as the corresponding API endpoints, but with enhanced developer experience:

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AuthClient

Implements: Authentication API endpoints
Key Features: Automatic token refresh, session management, passwordless flows
Storefront Guide: Authentication Best Practices 
const { data, error } = await client.auth.loginWithEmail({
  email: "user@example.com",
  register_if_not_exists: true
});

if (data) {
  // The response for loginWithEmail contains OTP details
  console.log("OTP Sent. Please verify.");
  console.log("OTP Token:", data.content.otp_token);
} else if (error) {
  console.error("Login failed:", error.message);
}

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CatalogClient

Implements: Catalog API endpoints
Key Features: Product search, filtering, recommendations with full type safety
Storefront Guide: Catalog Management 
const { data, error } = await client.catalog.listProducts({
  limit: 20,
  category_id: "cat_123"
});

if (data) {
  // Fully typed product objects
  data.products.forEach(product => {
    console.log(product.name, product.selling_price);
  });
}

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CartClient

Implements: Cart API endpoints
Key Features: Cart state management, automatic price calculations, promotion handling
Storefront Guide: Cart Management 
const { data, error } = await client.cart.createCart({
  items: [{ product_id: "prod_123", variant_id: null, quantity: 1 }]
});

if (data) {
  // Cart with calculated totals, taxes, shipping
  console.log("Total:", data.content.grand_total);
}

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CustomerClient

Implements: Customer API endpoints
Key Features: Profile management, address book, loyalty tracking
Storefront Guide: Account Management

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OrderClient

Implements: Order API endpoints
Key Features: Order creation, tracking, returns, payment status

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ShippingClient

Implements: Shipping API endpoints
Key Features: Serviceability checks, shipping methods, cost calculation

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HelpersClient

Implements: Common API endpoints
Key Features: Country/state data, validation utilities, location services

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SDK vs Direct API Calls

// Automatic token management, type safety, error handling
const { data, error } = await client.catalog.listProducts({
  limit: 20,
  category_id: "electronics"
});

if (data) {
  // Full IntelliSense support
  data.products.forEach(product => {
    console.log(product.name); // ✅ Type-safe
  });
} else if (error) {
  // Typed error handling
  console.error(error.message);
}

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Cross-References

Each SDK client method corresponds directly to API endpoints documented in the API Reference. The SDK provides the same functionality with enhanced developer experience:
  • Complete API Documentation: API Reference with live playground
  • Business Logic & Patterns: Storefront Guides for e-commerce workflows
  • SDK-Specific Features: Type safety, automatic token management, error handling
For detailed API parameters, request/response formats, and testing, refer to the API Reference section. The SDK provides the same endpoints with additional type safety and token management.