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Multi-Cart Bundling Specification: Custom APIs

Last Updated:
May 22, 2026

For non-SFCC and non-Shopify clients, Tangiblee can adapt to any custom API provided by client or use our own custom-developed API.

Option 1: custom API developed by client

If you are interested in this option, please provide the following:

  1. API endpoint to fetch variations by product ID.

The example of data structure API should return (it should include a list of variations with prices, colors, sizes and stock availability):

type Variation = {
    id: string;
    name: string;
    price: number;
    available: boolean;
    options: {[key: string]: string|number};
};

type API_RESPONSE = {
    options: string[];
    items: Variation[];
};

const exampleEndpoint = () => {
    return {
        options: ['color', 'size'],
        items: [
            {id: 1, name: 'Ring X', price: 1000, available: true, options: {color: 'red', size: 'M'}},
            {id: 2, name: 'Ring X', price: 1000, available: true, options: {color: 'red', size: 'L'}},
            {id: 3, name: 'Ring X', price: 1000, available: true, options: {color: 'blue', size: 'M'}},
            {id: 4, name: 'Ring X', price: 1000, available: true, options: {color: 'blue', size: 'L'}},
        ]
    };
};

  1. API to add items into the cart by variant ID.

Option 2: custom API developed by Tangiblee

Tangiblee can use a custom-developed API to fetch product variations.

For this option, please provide the following:

  1. Product Feed including price and stock availability in the below format.
SKU ID Price Stock
31021585 90.00 Out of stock
18811718 85.00 In stock

[[info]]Tangible parses the feed every 15 minutes to get the actual price and availability. Please make sure you update this information in the feed at this cadence.[[info]]

  1. API to add items into the cart by variant ID.

cart bundling API, custom API integration, multi SKU add to cart, bundled checkout, technical specification, commerce API

Implement Tangiblee multi-cart bundling via a custom API. Covers cart payload structure, endpoint requirements, and the API handshake needed for bundled SKU add-to-cart.

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