//native
/**
* Update Product Variant
* Update a variant's price, compare-at price, SKU, barcode, weight or option values. Only the fields you fill in are changed. option_values maps option names to new values (e.g. {"Size": "XL"}).
*/
export async function main(
auth: RT.Shopify,
product_id: string,
variant_id: string,
price: string | undefined,
compare_at_price: string | undefined,
sku: string | undefined,
barcode: string | undefined,
weight: number | undefined,
weight_unit: "KILOGRAMS" | "GRAMS" | "POUNDS" | "OUNCES" | undefined,
inventory_policy: "DENY" | "CONTINUE" | undefined,
option_values: { [key: string]: string } | undefined
) {
const productId = product_id.startsWith("gid://")
? product_id
: `gid://shopify/Product/${product_id}`
const id = variant_id.startsWith("gid://")
? variant_id
: `gid://shopify/ProductVariant/${variant_id}`
const inventoryItem = {
sku: sku || undefined,
measurement:
weight != null
? { weight: { value: weight, unit: weight_unit || "KILOGRAMS" } }
: undefined,
}
const options = Object.entries(option_values ?? {})
const response = await fetch(
`https://${auth.store_name}.myshopify.com/admin/api/2026-10/graphql.json`,
{
method: "POST",
headers: {
"X-Shopify-Access-Token": auth.token,
"Content-Type": "application/json",
Accept: "application/json",
},
body: JSON.stringify({
query: `mutation ($productId: ID!, $variants: [ProductVariantsBulkInput!]!) { productVariantsBulkUpdate(productId: $productId, variants: $variants) { productVariants { id legacyResourceId title sku price compareAtPrice inventoryPolicy updatedAt selectedOptions { name value } barcodes(first: 5) { nodes { value type } } inventoryItem { id measurement { weight { value unit } } } } userErrors { field message code } } }`,
variables: {
productId,
variants: [
{
id,
price: price || undefined,
compareAtPrice: compare_at_price || undefined,
barcodes: barcode ? [{ value: barcode }] : undefined,
inventoryPolicy: inventory_policy || undefined,
inventoryItem:
inventoryItem.sku || inventoryItem.measurement
? inventoryItem
: undefined,
optionValues: options.length
? options.map(([optionName, name]) => ({ optionName, name }))
: undefined,
},
],
},
}),
}
)
if (!response.ok) {
throw new Error(`${response.status} ${await response.text()}`)
}
const { data, errors } = await response.json()
if (errors) {
throw new Error(JSON.stringify(errors))
}
if (data.productVariantsBulkUpdate.userErrors.length) {
throw new Error(JSON.stringify(data.productVariantsBulkUpdate.userErrors))
}
return data.productVariantsBulkUpdate
}
Submitted by hugo989 3 hours ago