@nmsp/shopify-storefront-api-utilities

Overview

@nmsp/shopify-storefront-api-utilities contains functions for working with data from the Shopify Storefront API.

Installation

npm install @nmsp/shopify-storefront-api-utilities

Usage

Each utility function can be imported as a named import. For example, import { productFromProductId } from '@nmsp/shopify-storefront-api-utilities'.

Available Functions

productFromProductId

Return the product that matches the productId from a list of products.

Syntax

const product = productFromProductId(productId, products)

Parameters

Parameter	Description
productId	The identifier for the product to be returned. Note: this is the shopifyId passed from gatsby-source-shopify-storefront, not the regular id.
products	A list of products.

productFromVariantId

Return the product of the variant that matches the variantId from a list of products.

Syntax

const product = productFromVariantId(variantId, products)

Parameters

Parameter	Description
variantId	The identifier for the variant which product will be returned. Note: this is the shopifyId passed from gatsby-source-shopify-storefront, not the regular id.
products	A list of products.

Considerations

The products passed must include the variants and their IDs in order for the product to be found. For example,

const products = [
	{
		title: 'Product 1',
		variants: [
			{
				id: 'variant-1-id',
				title: 'Product 1, variant 1',
			},
		]
	}
]

const product = productFromVariantId('variant-1-id', products)

/*
product === {
	title: 'Product 1',
	variants: [
		{
			id: 'variant-1-id',
			title: 'Product 1, variant 1',
		},
	]
}
*/

getSelectedOptionsFromUrlParams

Returns an object of the product options as taken from the URL search parameters. If the URL search parameters does not contain a valid value, it will return the default options (the first). The options array from the product data point should be be passed as the first argument.

Syntax

const product = getSelectedOptionsFromUrlParams(options)

Usage

This function is intended to be used to set the selectedOptions initial state. For example, const [ selectedOptions, setSelectedOptions ] = useState(() => getSelectedOptionsFromUrlParams(options))

Parameters

Parameter	Description
options	The options data from the Shopify Storefront API product.

Url Params

This function will respond to URL search params using the Shopify option key and value. Keep in mind that Shopify options and values will likely be capitalized. For example, www.example.com/shop/product?Color=Black&Size=4.

filterUniqueVariantsByOption

Filters variants so that the returned variants are unique according to the optionName(s) passed as the first argument. For example, if you have multiple variants with multiple colors and sizes, but only want to show the variants with unique colors, you could pass 'colors' as the first argument and it will filter accordingly.

Minimum GraphQL Data Requirement

In order for this utility to work, any variants must include at minimum the data outlined below in the GraphQL example.

	query {
		allShopifyProductVariant {
			nodes {
				shopifyId
				selectedOptions {
					value
					name
				}
				product {
					shopifyId
				}
			}
		}
	}

Syntax

const filteredVariants = filterUniqueVariantsByOption(optionNames, variants)

Usage

// with string
const filteredVariants = filterUniqueVariantsByOption('Color', variants)

// with array
const filteredVariants = filterUniqueVariantsByOption([ 'Color', 'Strap Color' ], variants)

Parameters

Parameter	Type	Description
optionNames	String or Array	The option or options the returned list of variants should be unique by.
variants	Array	An array of product variants from the Shopify Storefront API.

formatPriceRange

Formats price range from a price range object from Shopify Storefront API. If the prices match, a single price will be passed, if only the currency codes match, the currency code will be shown with the price range, if both the currency code and the price doesn't match, it will show both the minimum and maximum currency code and price.

Minimum GraphQL Data Requirement

In order for this utility to work, the 'priceRange' object must be passed with 'minVariantPrice' and 'maxVariantPrice' objects with their 'amount' and 'currencyCode' data points.

	query {
		allShopifyProduct {
			nodes {
				...
				priceRange {
					minVariantPrice {
						currencyCode
						amount
					}
					maxVariantPrice {
						currencyCode
						amount
					}
				}
				...
			}
		}
	}

Syntax

const priceRange = formatPriceRange(priceRange)

Usage

// Price range object mock
const priceRange = {
	minVariantPrice: {
		currencyCode: "USD",
		amount: "120.00",
	},
	maxVariantPrice: {
		currencyCode: "USD",
		amount: "140.0",
	}
}

const price = renderPriceFromPriceRange(priceRange)
// USD $120.00-$140.00

Parameters

Parameter	Type	Description
priceRange	Object	A priceRange object from the Storefront API.
options	Object	Options object same as formatPrice utility (See 'formatPrice').

formatPrice

Formats a price based on a price object passed from the Shopify Storefront API. The number format can be changed by passing a numeral format in the options object.

Minimum GraphQL Data Requirement

In order for this utility to work, the 'price' object must be passed with 'amount' and 'currencyCode' data points. For example,

	query {
		allShopifyProduct {
			nodes {
				...
				priceV2 {
					currencyCode
					amount
				}
				...
			}
		}
	}

Syntax

const price = formatPrice(price, options)

Usage

// Price object mock
const price = {
	currencyCode: "USD",
	amount: "1200.00",
}

const formattedPrice = formatPrice(price)
// USD $1,200.00

// With options
const options = {
	format: '$0,0',
}

const formattedPriceWithOptions = formatPrice(price, options)
// USD $1,200

Parameters

Parameter	Type	Description
price	Object	A price object from the Storefront API.
options	Object	Includes format which will format the number accordingly. Includes showCurrency which defaults to true, if set to false, currency will not be rendered.

splitProductsByOption

Splits a product and its variants by a specific option. Each value of an option will be split into different objects. These objects will include a product object, and a variants array which will contain all the variants with the same object value. Because the data is split based on option value, and since there can be multiple object values per product, there will be duplicate products in the cases where there are more than one object value. This can be used for PLPs where separate list items need to be shown for each option value (for example, a product in all the colors offered).

Minimum GraphQL Data Requirement

	query {
		allShopifyProduct {
			nodes {
				handle
				options {
					name
					values
				}
				variants {
					selectedOptions {
						value
						name
					}
				}
			}
		}
	}

Syntax

const options = splitProductsByOption(optionName, products)

Usage

const options = splitProductsByOption('Color', products)
// returns:
// 	[
// 		{
// 			optionValue: 'Black',
// 			to: '/shop/dress?Color=Black
// 			product: {
// 				handle: 'dress',
// 				// other product data passed to fn for 'dress'
// 			},
// 			variants: [
// 				// 'dress' variants where Color === 'Black'
// 			],
// 		},
// 		{
// 			optionValue: 'Red',
// 			to: '/shop/dress?Color=Red
// 			product: {
// 				handle: 'dress',
// 				// other product data passed to fn for 'dress'
// 			},
// 			variants: [
// 				// 'dress' variants where Color === 'Red'
// 			],
// 		},
// 	]

Parameters

Parameter	Type	Description
optionName	String	The option that the products should be split by.
products	Object	An array of objects from the Storefront API.
options	Object	An object of options. Includes productPagePathPrefix which will change the prefix to the to data point (defaults to '/shop').