Methods & Usage

Usage

The SDK requires configuration during initialization:

Before initializing the SDK clients, you'll need a Google Places API Key from your Google Cloud Console. This key is required for location-based features and should be kept secure.

LiquidCommerce Client

import LiquidCommerce from '@liquidcommerce/cloud-sdk';

// Your Account token provided to you through 
// your account representative
const client = await LiquidCommerce('YOUR_LIQUIDCOMMERCE_API_KEY', {
  googlePlacesApiKey: 'YOUR_GOOGLE_PLACES_API_KEY',
  env: 'stage' // or 'prod'
});

// Initialize the client
await client.init();

LiquidCommerceOrders Client

import LiquidCommerceOrders from '@liquidcommerce/cloud-sdk';

// Your Account user and passoword will be provided to you 
// through your account representative
const orderClient = await LiquidCommerceOrders({
  userID: 'YOUR_ORDER_API_USER_ID',
  password: 'YOUR_ORDER_API_PASSWORD',
  env: LIQUID_COMMERCE_ENV.STAGE, // or PROD
});

// Initialize the client
await orderClient.init();

Response Types

All API responses follow a consistent structure:

interface ApiResponse<T> {
  statusCode: number;
  message: string;
  metadata: {
    languages: string[];
    timestamp: number;
    timezone: string;
    requestId: string;
    path: string;
    version: string;
  };
  data?: T; // Present in responses with data
}

Methods

Address

While the SDK handles authentication automatically, you can also manually retrieve the authentication details:

// Manually retrieve authentication details
try {
  const authDetails = await client.auth();
  console.log('Access Token:', authDetails.token);
  console.log('Expires In:', authDetails.exp);
} catch (error) {
  console.error('Failed to get auth details:', error);
}

Address

Services for address validation and lookup:

// Address autocompletion
const autocompleteResponse = await client.address.autocomplete({
  input: '100 Madison Ave, New York'
});

// Response type: IApiResponseWithData<IAddressAutocompleteResult[]>
// {
//   id: string;
//   description: string;
// }

// Get detailed address information
const detailsResponse = await client.address.details({
  id: 'ChIJd8BlQ2BZwokRjMKtTjMezRw'
});

// Response type: IApiResponseWithData<IAddressDetailsResult>
// {
//   formattedAddress: string;
//   coords: {
//     lat: number;
//     long: number;
//   }
//   address: {
//     one: string,
//     two: string,
//     city": string,
//     state: string,
//     zip: string,
//     country: "US"
//   }
// }

Catalog

Product catalog search and availability services:

// Check product availability
const availabilityResponse = await client.catalog.availability({
  upcs: ['123456789012', '210987654321'], // UPC codes
  grouping: ['group1', 'group2'], // Optional group identifiers
  ids: ['id1', 'id2'], // Optional product IDs
  loc: {
    address: {
      one: '123 Main St',
      city: 'New York',
      state: 'NY',
      zip: '10001'
    }
  },
  shouldShowOffHours: true
});

// Search catalog with filters
const searchResponse = await client.catalog.search({
  search: 'whiskey',
  pageToken: "",
  entity: "",
  page: 1,
  perPage: 20,
  orderBy: ENUM_ORDER_BY.PRICE,
  orderDirection: ENUM_NAVIGATION_ORDER_DIRECTION_TYPE.ASC,
  filters: [
    { 
      key: ENUM_FILTER_KEYS.CATEGORIES, 
      values: [ENUM_SPIRITS.WHISKEY] 
    },
    { 
      key: ENUM_FILTER_KEYS.PRICE, 
      values: { min: 2000, max: 10000 } // Prices in cents
    },
    {
      key: ENUM_FILTER_KEYS.AVAILABILITY,
      values: ENUM_AVAILABILITY_VALUE.IN_STOCK
    }
  ],
  loc: {
    address: {
      one: '123 Main St',
      city: 'New York',
      state: 'NY',
      zip: '10001'
    }
  }
});

Cart

Shopping cart management:

// Create new cart
const newCart = await client.cart.get();

// Retrieve existing cart
const existingCart = await client.cart.get('cart_id', true); // Second parameter for refresh

// Update cart
const updatedCart = await client.cart.update({
  id: 'cart_id',
  items: [
    {
      partNumber: '123456789012_retailer_id', // Required: {UPC}_{retailerId}
      quantity: 2,
      fulfillmentId: 'fulfillment_id',
      engravingLines: ['Line 1', 'Line 2'], // Optional
      scheduledFor: '2024-12-25', // Optional
    }
  ],
  loc: {
    address: {
      one: '123 Main St',
      city: 'New York',
      state: 'NY',
      zip: '10001'
    }
  },
  promoCode: 'DISCOUNT10', // Optional
  giftCards: ['GC123456'] // Optional
});

User

User profile and preferences management:

// Create/update user session
const userSession = await client.user.session({
  email: "[email protected]",
  firstName: "John",
  lastName: "Smith",
  phone: "2125551234",
  company: "Company Inc",
  profileImage: "https://...",
  birthDate: "1990-01-01",
  id:'user_id', // Existing user identifier (for updates only), email becomes optional
});

// Fetch user by ID or email
const userData = await client.user.fetch('user_id_or_email');

// Address management
const newAddress = await client.user.addAddress({
  customerId: 'customer_id',
  placesId: 'google_places_id', // Optional if providing address details
  one: '100 Madison St',
  two: 'Apt 4B',
  city: 'New York',
  state: 'NY',
  zip: '10004',
  country: 'US',
  lat: 40.7128, // Optional
  long: -74.0060, // Optional
  type: ENUM_ADDRESS_TYPE.SHIPPING,
  isDefault: true
});

const updatedAddress = await client.user.updateAddress({
  // Same parameters as addAddress
});

// Payment methods

// 1. First create/retrieve a user session
const userSession = await client.user.session({
  email: "[email protected]",
  // ... other user details
});

// 2. Initialize payment form with session data
// The session response includes payment configuration in the auth object
await client.payment.mount({
  clientSecret: userSession.data.session.setupIntent, // From user session response
  key: userSession.data.session.publicKey,           // From user session response
  elementId: 'payment-element-container',
  appearance: { 
    theme: 'night' // 'default' | 'night' | 'flat'
  },
  elementOptions: { 
    layout: 'tabs' // 'tabs' | 'accordion' | 'auto'
  }
});

// 3. Listen for payment element events
client.payment.subscribe('ready', () => {
  console.log('Payment element is ready');
});

client.payment.subscribe('change', (event) => {
  // Handle validation and form state changes
  console.log('Payment element changed:', event);
});

// 4. When user submits, generate payment token
const tokenResult = await client.payment.generateToken();
if ('error' in tokenResult) {
  console.error('Token generation failed:', tokenResult.error);
  // Handle error cases:
  // - validation_error: Invalid payment details
  // - api_error: Server/API issues
  // - client_error: SDK/setup issues
  // - confirm_error: Payment confirmation failed
} else {
  // Payment method successfully created
  console.log('Payment token:', tokenResult.id);
  
  // 5. Add payment method to user profile
  await client.user.addPayment({
    userId: userSession.data.id,
    paymentMethodId: tokenResult.id,
    isDefault: true
  });
}

// 6. Clean up
client.payment.unmount();
client.payment.destroy();

// Data removal
await client.user.purge('user_id_or_email');
await client.user.purgeAddress('address_id');
await client.user.purgePayment('user_id', 'payment_id');

Payment Element

The Payment Element is a secure and modern UI component for collecting payment details. It simplifies PCI compliance by handling all sensitive information within an iframe.

Prerequisites

Before mounting the Payment Element, you must create a payment session. This can be tied to a user, cart, or checkout.

// Create a payment session to get a client secret
const paymentSession = await client.user.paymentSession({
  // Optionally link to a cart, checkout, or customer
  // cartId: 'your_cart_id',
  // checkoutToken: 'your_checkout_token',
  // customerId: 'your_customer_id',
});

const { key, secret } = paymentSession.data.session;

Integration

1

Initialize and Mount

The LiquidCommercePaymentElement function creates and manages the UI component.

// Initialize the payment element
const paymentElement = LiquidCommercePaymentElement({
  session: {
    key, // Public key from payment session
    secret, // Client secret from payment session
  },
});

// Mount the element to a container in your DOM
await paymentElement.mount({
  elementId: 'payment-element-container',
  appearance: {
    theme: 'night', // 'stripe' | 'night' | 'flat'
  },
  elementOptions: {
    layout: 'tabs', // 'tabs' | 'accordion' | 'auto'
  },
});

2

Generate a Confirmation Token

Once the user has filled out the payment form, create a confirmation token. This token securely represents the payment details.

const result = await paymentElement.createConfirmationToken();

if (result.token) {
  // Token successfully created
  const confirmationToken = result.token;
  // Use this token to complete the checkout or save the payment method
} else {
  // Handle error
  console.error(result.message);
}

3

Confirm the Payment Session

Use the confirmation token to finalize the payment and retrieve the payment method details.

const confirmation = await client.user.confirmPaymentSession(confirmationToken);

if (confirmation.data) {
  const paymentMethod = confirmation.data;
  // Now you have the payment method ID, card details, etc.
  // e.g., paymentMethod.id, paymentMethod.card.brand
}

4

Lifecycle Management

Properly manage the element's lifecycle to ensure a smooth user experience and resource cleanup.

// Listen to events
paymentElement.subscribe('ready', () => {
  console.log('Payment element is ready.');
});

paymentElement.subscribe('change', (event) => {
  // Handle form state changes (e.g., enable/disable submit button)
});

// Clean up when the element is no longer needed
paymentElement.unmount();
paymentElement.destroy();

Legacy Payment

Use the new Payment Element integration that has the UI and API methods decoupled, allowing you to use the SDK entirely server side.

The payment system uses secure elements for handling sensitive payment data. Before using payment features, you must first create a user session.

Prerequisites

1. User Session Creation:

// First create or get a user session
const userSession = await client.user.session({
  email: "[email protected]",
  // ... other user details
});

// The session response includes necessary payment credentials
const { secret, key } = userSession.data.session;

Payment Element Integration

// Initialize payment form using session credentials
await client.payment.mount({
  clientSecret: secret,  // Required: From user session response
  key,                   // Required: From user session response
  elementId: 'payment-element-container',             // Your DOM element ID
  appearance: { 
    theme: 'night'  // 'default' | 'night' | 'flat'
  },
  elementOptions: { 
    layout: 'tabs'  // 'tabs' | 'accordion' | 'auto'
  }
});

// Monitor payment element state
client.payment.subscribe('ready', () => {
  // Element is ready to accept input
});

client.payment.subscribe('change', (event) => {
  const { complete, empty, value } = event;
  // Handle validation state changes
});

// Process payment when ready
const tokenResult = await client.payment.generateToken();

// Handle the result
if ('error' in tokenResult) {
  const { type, message, code } = tokenResult.error;
  // type can be: 'validation_error' | 'api_error' | 'client_error' | 'confirm_error'
} else {
  // Use tokenResult.id for checkout completion or saving payment method
  const { id, card } = tokenResult;
}

// Always clean up when done
client.payment.unmount();
client.payment.destroy();

Security Considerations

1. PCI Compliance: The payment element handles card data securely within an iframe, ensuring your application never directly touches sensitive payment information.

2. Token-Based: All payment data is tokenized - you only receive secure tokens that can't be used to retrieve the original card details.

3. Single Use: Payment tokens are single-use and expire after a short time period.

4. Domain Validation: Payment elements will only work on domains that have been pre-registered with your account.

Best Practices

1. Error Handling: Always implement proper error handling:

try {
  const token = await client.payment.generateToken();
  if ('error' in token) {
    switch(token.error.type) {
      case 'validation_error':
        // Handle invalid card data
        break;
      case 'api_error':
        // Handle API/network issues
        break;
      case 'client_error':
        // Handle setup/configuration issues
        break;
      case 'confirm_error':
        // Handle payment confirmation failures
        break;
    }
  }
} catch (error) {
  // Handle unexpected errors
}

1. Cleanup: Always clean up payment elements when done:

• When navigation away from payment page

• After successful payment

• After failed payment attempt

• Before unmounting payment component

1. Event Handling: Monitor element state for better user experience:

client.payment.subscribe('change', (event) => {
  // Update UI based on validation state
  const { complete, empty } = event;
  submitButton.disabled = !complete || empty;
});

client.payment.subscribe('loaderror', (event) => {
  // Handle element loading failures
  console.error('Payment element failed:', event.error);
});

Responsive Design

The payment element automatically adapts to:

• Mobile and desktop viewports

• Right-to-left languages

• Dark/light themes

• Different container sizes

Testing Cards

When testing payments in staging environment, use these test cards:

// Test Visa Card
Card Number: 4242 4242 4242 4242
Expiry: Any future date
CVC: Any 3 digits
ZIP: Any 5 digits

// Test Mastercard
Card Number: 5555 5555 5555 4444
Expiry: Any future date
CVC: Any 3 digits
ZIP: Any 5 digits

// Example test card usage:
/*
  Card: 4242 4242 4242 4242
  Expiry: 12/29
  CVC: 123
  ZIP: 10001
*/

These cards will be accepted in test mode and will simulate successful payments. They should only be used in the staging environment, never in production.

Important Notes:

• These cards work only in test/staging environment

• Real cards will be declined in test mode

• Test cards will be declined in production

• All test transactions use simulated funds

Testing Environment Limitations ⚠️ Important Testing Note When doing and checkout complete on the testing environment, certain transaction amount ranges may be intentionally restricted to simulate payment declines, gateway errors, or other failures. This allows you to verify that your integration can handle error scenarios correctly.

Example — Amounts that may trigger simulated errors:

• $2000.00 – $2999.99: Processor Declined

• $3000.00 – $3000.99: Processor Network Unavailable

• $5001.00: Gateway Rejected (Application Incomplete)

For routine testing, avoid using these ranges unless you specifically want to test error-handling behavior.

Checkout

Checkout process management:

// Prepare checkout
const preparedCheckout = await client.checkout.prepare({
  cartId: "cart_id",
  customer: {
    id: "customer_id", // Optional
    email: "[email protected]", // Required
    firstName: "John",
    lastName: "Smith",
    phone: "2125551234",
    birthDate: "1990-01-01"
  },
  hasAgeVerify: true,
  billingAddress: {
    firstName: "John",
    lastName: "Smith",
    email: "[email protected]",
    phone: "2125551234",
    one: "123 Main St",
    two: "Apt 4B",
    city: "New York",
    state: "NY",
    zip: "10001",
    country: "US"
  },
  hasSubstitutionPolicy: true,
  isGift: true,
  billingSameAsShipping: false,
  giftOptions: {
    message: "Happy Birthday!",
    recipient: {
      name: "Jane Smith",
      email: "[email protected]",
      phone: "2125555678"
    }
  },
  marketingPreferences: {
    canEmail: true,
    canSms: true
  },
  deliveryTips: [
    {
      fulfillmentId: "fulfillment_id",
      tip: 500 // Amount in cents
    }
  ],
  deliveryInstructions: [
    {
      fulfillmentId: 'fulfillment_id',
      instructions: "", // 250 Max characters
    },
  ],
  acceptedAccountCreation: true,
  scheduledDelivery: "2024-12-25T14:00:00Z",
  promoCode: 'DISCOUNT10', // Optional
  giftCards: ['GC123456'], // Optional
});

// Complete checkout
const completedCheckout = await client.checkout.complete({
  token: preparedCheckout.token,
  payment: "payment_id"
});

Checkout Payment

For direct checkout payments, the flow is similar but uses the checkout session:

// 1. First prepare the checkout
const preparedCheckout = await client.checkout.prepare({
  cartId: 'cart_id',
  // ... other checkout details
});

// 2. Initialize payment element with checkout session
const paymentElement = LiquidCommercePaymentElement({
  session: {
    key: preparedCheckout.data.payment.publicKey, // From checkout prepare response
    secret: preparedCheckout.data.payment.clientSecret, // From checkout prepare response
  }
});

// 3. Mount the element
await paymentElement.mount({
  elementId: 'payment-element-container',
  appearance: { theme: 'night' },
  elementOptions: { layout: 'tabs' },
});

// 4. Handle payment element events and create confirmation token
const result = await paymentElement.createConfirmationToken();

if (result.token) {
  // 5. Confirm the payment collected with the confirmation token
  const confirmation = await client.user.confirmPaymentSession(confirmationToken);
 
 if (confirmation?.data?.id) {
    // 6. Complete checkout with the confirmation token
    const completedCheckout = await client.checkout.complete({
      token: preparedCheckout.data.token,
      payment: confirmation?.data?.id,
    });
  }
}

// 7. Clean up
paymentElement.unmount();
paymentElement.destroy();

Orders

Provides secure access to order data throughout the finalized states of the order lifecycle within the LiquidCommerce ecosystem.

Fetch by ID

const orderClient = await LiquidCommerceOrders({
  userID: 'YOUR_ORDER_API_USER_ID',
  password: 'YOUR_ORDER_API_PASSWORD',
  env: LIQUID_COMMERCE_ENV.STAGE, // or PROD
});

// Fetch order details by ID or number
const orderResponse = await orderClient.order.fetch(/* reference id or order number */);

Webhook Test

// Test webhook endpoint
const webhookTestResult = await client.webhook.test(/* endpoint */);

// Response is a simple boolean indicating success or failure
// true = webhook test was successful
// false = webhook test failed

Error Handling

The SDK throws errors for various scenarios. Always wrap SDK calls in try-catch blocks:

try {
  const result = await client.someMethod();
} catch (error) {
  console.error('Operation failed:', error.message);
  // Handle specific error cases
}

Common error scenarios:

• Authentication failures

• Invalid parameters

• Network errors

• Resource not found

• Rate limiting

• Validation errors

Price Handling

All monetary values in the SDK are handled in cents (the smallest currency unit). For example:

• $10.00 is represented as 1000

• $5.99 is represented as 599

• $0.50 is represented as 50