Introduction

import { createSimpleGateway } from '@betterdata/commerce-gateway';

const gateway = createSimpleGateway({
  backends: {
    products: myProductBackend,
    cart: myCartBackend,
    orders: myOrderBackend,
  },
});

// Works with Claude MCP
gateway.serveMCP();

// Works with ChatGPT
gateway.serveOpenAI();

// Works with Grok
gateway.serveGrok();

// Works with custom HTTP
gateway.listen(3000);

import { 
  createSimpleGateway, 
  InMemoryCatalog 
} from '@betterdata/commerce-gateway';

// 1. Create product catalog
const catalog = new InMemoryCatalog();
await catalog.addProduct({
  id: '1',
  name: 'Wireless Headphones',
  price: 99.99,
  inStock: true,
});

// 2. Create gateway
const gateway = createSimpleGateway({
  backends: {
    products: catalog,
    cart: catalog,
    orders: catalog,
  },
});

// 3. Serve on Claude MCP
gateway.serveMCP();

// Now Claude Desktop can search products, add to cart, and checkout!

const searchTool = createTool({
  name: 'search_products',
  description: 'Search for products',
  schema: z.object({
    query: z.string(),
    limit: z.number().default(10),
  }),
  handler: async ({ query, limit }) => {
    return await products.search(query, limit);
  },
});

// Automatically works with:
// ✓ Claude MCP
// ✓ OpenAI Function Calling
// ✓ Grok
// ✓ Custom HTTP APIs

interface ProductBackend {
  searchProducts(query: string): Promise<Product[]>;
  getProductDetails(id: string): Promise<Product>;
  checkInventory(ids: string[]): Promise<InventoryStatus[]>;
}

// Implement once, use everywhere
const shopifyBackend = new ShopifyBackend({ ... });
const squareBackend = new SquareBackend({ ... });
const customBackend = new MyCustomBackend({ ... });

// Automatic tracking
gateway.analytics.track({
  event: 'search',
  sessionId: 'session_123',
  metadata: {
    query: 'running shoes',
    results: 15,
    provider: 'anthropic',
  },
});

// Query metrics
const metrics = await gateway.analytics.getMetrics({
  startDate: '2024-01-01',
  endDate: '2024-01-31',
});