Techdocs
  • Introduction
  • Implementing Nosto
    • Implement on your website
      • Manual Tagging - Essentials
        • Setting up your account
        • Adding the Nosto Script
        • Adding the Cart Tagging
        • Adding the Customer information
        • Adding the Product Tagging
          • Default Product Tagging
          • Basic Tagging
        • Adding the Category/Brand Tagging
        • Adding the Search Tagging
        • Adding the Order Tagging
        • Defining Nosto placements
        • Tagging your page types
      • Advanced Usage
        • Extending tagging with SKUs
        • Adding support for multi-currency
        • Adding support for customer group pricing
      • FAQ
    • Implement on native mobile
    • Implement on a physical store
    • Implement Search & Categories
      • Using Search Templates
        • Using Search Templates
        • Implementing Search page
        • Implementing Autocomplete
        • Implementing Category pages
        • Testing & deployment
        • FAQ
      • Using the API
        • Use the Search & Categories API
        • Implement Search results page
        • Implement Autocomplete
        • Implement Category pages
        • FAQ
      • Using the JavaScript Library
        • Implement Autocomplete using the Nosto Autocomplete library
          • Installation
          • Initialization
            • Render results
            • Submit search
          • Create Autocomplete template
          • Further reading
    • Check your setup
    • Template customization
      • Starting points
      • Product cards
      • Styling
      • Scripting
  • APIs
    • GraphQL
      • The Playground
      • Using the API
      • Testing and Debugging
      • Using Mutations
        • Updating Products
        • Updating Categories
        • Updating Identities
        • GraphQL: Onsite Sessions
        • Working with Orders
          • GraphQL: Placing Orders
          • GraphQL: Updating Order Statuses
      • Using Queries
        • Querying Products
        • Querying Identities
        • Querying Orders
        • Querying Recommendations
        • Querying Segments
        • Querying Search
        • Querying Category Merchandising Products (CM 1.0)
      • For iOS & Android
      • For Headless
    • REST
      • GDPR
        • Redacting customer data
        • Initiating data takeouts
      • Customers
        • Blacklisting Customers
        • Toggling marketing consent
      • Products
        • Updating Products
        • Discontinuing Products
        • Recrawling Products
      • Other
        • Updating Rates
    • Frontend
      • Session API
        • Terminology
        • Setting up
        • Managing Sessions
        • Handling Placements
        • Tracking Events
        • Leveraging Features
        • Record Attribution
        • Advanced Usage
          • Supporting opt-out and do-not-track
          • Using external session identifiers
          • Adding support for multi-currency
          • Adding support for customer group pricing
        • FAQ
      • JS API
        • Initializing Nosto
        • Recommendations
          • Loading Recommendations
          • Recommendation Callbacks
          • Setting up dynamic filtering
          • Sending Product-View Events
          • Sending Add to Cart-Events
        • Popups
          • Listing Popup Campaigns
          • Opening a Popup
          • Enabling & Disabling Popups
          • Popup Callbacks
        • Advanced Usage
          • Sending email addresses to Nosto
          • Manually segmenting users
          • Dynamically sending the cart content
          • Sending Customer Information
        • Record Attribution
      • Open Source
        • Nosto JS
        • Search JS
        • Nosto React
        • Web Components
          • Loading Web components
  • User Generated Content
    • UGC Techdocs
  • 3rd party data integrations
    • Shopify
    • Magento 2
    • Magento
    • BigCommerce
    • Shopware 6
    • Shopware 5
    • Prestashop
    • Salesforce
    • PHP-SDK
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  1. APIs
  2. Frontend
  3. JS API
  4. Advanced Usage

Dynamically sending the cart content

If you're on a site where the cart content is not accessible when the page is rendered, you might need to fetch the cart content over AJAX/CORS and send that information to Nosto.

The example below illustrates how to fetch the fresh cart content over CORS, leverage that to render the cart tagging and then use the API to sent that information to Nosto.

This example uses advances constructs, leverages CORS, browser modules and may not have compatibility on older browsers.

function lineItemToHtml(item) {
  return `
    <div class="line_item">
      <span class="product_id">${item.product_id}</span>
      <span class="sku_id">${item.sku_id}</span>
      <span class="quantity">${item.quantity}</span>
      <span class="name">${item.name}</span>
      <span class="unit_price">${item.unit_price}</span>
      <span class="price_currency_code">${item.currency}</span>
    </div>
  `
}

function cartToHtml(cart) {
  return `
    <div class="nosto_cart" style="display:none">
      ${cart.items.map((item) => lineItemToHtml(item))}
    </div>
  `
}

/**
 * This example fetches cart content from an external endpoint, uses 
 * that information to render the cart-tagging and then reloads the 
 * recommendations if needed.
 *
 * This snippet is written under the assumption that the data returned
 * by the endpoint resembles the following
 * {
 *   items: [
 *     product_id: "product_id",
 *     sku_id: "sku_id",
 *     quantity: "quantity",
 *     name: "name",
 *     unit_price: "unit_price",
 *     currency: "currency"
 *   ]
 * }
 */
export default function() {
  nostojs(api => {
    fetch("https://www.example.com/cart")
      .then(response => {
        const tagging = cartToHtml(response.json())

        document.querySelectorAll('.nosto_cart')
          .forEach(element => element.remove());
        document.body.append(tagging)

        api.resendCartTagging();
      })
  })
}
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Last updated 1 year ago

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