# cartMetafieldsSetDefault Creates a function that accepts an array of [CartMetafieldsSetInput](https://shopify.dev/docs/api/storefront/2024-01/input-objects/CartMetafieldsSetInput) without `ownerId` and set the metafields to a cart ```js import {cartMetafieldsSetDefault} from '@shopify/hydrogen'; const cartSetMetafields = cartMetafieldsSetDefault({ storefront, getCartId, }); const result = await cartSetMetafields([ { key: 'custom.gift', type: 'boolean', value: 'true', }, ]); ``` ## cartMetafieldsSetDefault ### CartMetafieldsSetDefaultGeneratedType #### Returns: CartMetafieldsSetFunction #### Params: - options: CartQueryOptions export function cartMetafieldsSetDefault( options: CartQueryOptions, ): CartMetafieldsSetFunction { return async (metafields, optionalParams) => { const ownerId = optionalParams?.cartId || options.getCartId(); const metafieldsWithOwnerId = metafields.map( (metafield: MetafieldWithoutOwnerId) => ({ ...metafield, ownerId, }), ); const {cartMetafieldsSet, errors} = await options.storefront.mutate<{ cartMetafieldsSet: { userErrors: MetafieldsSetUserError[]; }; errors: StorefrontApiErrors; }>(CART_METAFIELD_SET_MUTATION(), { variables: {metafields: metafieldsWithOwnerId}, }); return formatAPIResult( { cart: { id: ownerId, } as Cart, ...cartMetafieldsSet, }, errors, ); }; } ### CartQueryOptions ### storefront value: `Storefront` - Storefront: { query: < OverrideReturnType extends any = never, RawGqlString extends string = string, >( query: RawGqlString, ...options: ClientVariablesInRestParams< StorefrontQueries, RawGqlString, StorefrontCommonExtraParams & Pick, AutoAddedVariableNames > ) => Promise< ClientReturn & StorefrontError >; mutate: < OverrideReturnType extends any = never, RawGqlString extends string = string, >( mutation: RawGqlString, ...options: ClientVariablesInRestParams< StorefrontMutations, RawGqlString, StorefrontCommonExtraParams, AutoAddedVariableNames > ) => Promise< ClientReturn & StorefrontError >; cache?: Cache; CacheNone: typeof CacheNone; CacheLong: typeof CacheLong; CacheShort: typeof CacheShort; CacheCustom: typeof CacheCustom; generateCacheControlHeader: typeof generateCacheControlHeader; getPublicTokenHeaders: ReturnType< typeof createStorefrontUtilities >['getPublicTokenHeaders']; getPrivateTokenHeaders: ReturnType< typeof createStorefrontUtilities >['getPrivateTokenHeaders']; getShopifyDomain: ReturnType< typeof createStorefrontUtilities >['getShopifyDomain']; getApiUrl: ReturnType< typeof createStorefrontUtilities >['getStorefrontApiUrl']; isApiError: (error: any) => boolean; i18n: TI18n; } The storefront client instance created by [`createStorefrontClient`](docs/api/hydrogen/latest/utilities/createstorefrontclient). ### getCartId value: `() => string` A function that returns the cart ID. ### cartFragment value: `string` The cart fragment to override the one used in this query. ### Storefront Interface to interact with the Storefront API. ### query value: `(query: RawGqlString, ...options: IsOptionalVariables> extends true ? [(StorefrontCommonExtraParams & Pick & ClientVariables>]: StorefrontQueries[RawGqlString]["variables"][KeyType]; } & Partial>>)]: ({ [KeyType in keyof StorefrontQueries[RawGqlString]["variables"] as Filter>]: StorefrontQueries[RawGqlString]["variables"][KeyType]; } & Partial>>)[KeyType]; } : { readonly [variable: string]: unknown; }, Record<"variables", RawGqlString extends never ? { [KeyType in keyof ({ [KeyType in keyof StorefrontQueries[RawGqlString]["variables"] as Filter>]: StorefrontQueries[RawGqlString]["variables"][KeyType]; } & Partial>>)]: ({ [KeyType in keyof StorefrontQueries[RawGqlString]["variables"] as Filter>]: StorefrontQueries[RawGqlString]["variables"][KeyType]; } & Partial>>)[KeyType]; } : { readonly [variable: string]: unknown; }>>)?] : [StorefrontCommonExtraParams & Pick & ClientVariables>]: StorefrontQueries[RawGqlString]["variables"][KeyType]; } & Partial>>)]: ({ [KeyType in keyof StorefrontQueries[RawGqlString]["variables"] as Filter>]: StorefrontQueries[RawGqlString]["variables"][KeyType]; } & Partial>>)[KeyType]; } : { readonly [variable: string]: unknown; }, Record<"variables", RawGqlString extends never ? { [KeyType in keyof ({ [KeyType in keyof StorefrontQueries[RawGqlString]["variables"] as Filter>]: StorefrontQueries[RawGqlString]["variables"][KeyType]; } & Partial>>)]: ({ [KeyType in keyof StorefrontQueries[RawGqlString]["variables"] as Filter>]: StorefrontQueries[RawGqlString]["variables"][KeyType]; } & Partial>>)[KeyType]; } : { readonly [variable: string]: unknown; }>>]) => Promise & StorefrontError>` - Storefront: { query: < OverrideReturnType extends any = never, RawGqlString extends string = string, >( query: RawGqlString, ...options: ClientVariablesInRestParams< StorefrontQueries, RawGqlString, StorefrontCommonExtraParams & Pick, AutoAddedVariableNames > ) => Promise< ClientReturn & StorefrontError >; mutate: < OverrideReturnType extends any = never, RawGqlString extends string = string, >( mutation: RawGqlString, ...options: ClientVariablesInRestParams< StorefrontMutations, RawGqlString, StorefrontCommonExtraParams, AutoAddedVariableNames > ) => Promise< ClientReturn & StorefrontError >; cache?: Cache; CacheNone: typeof CacheNone; CacheLong: typeof CacheLong; CacheShort: typeof CacheShort; CacheCustom: typeof CacheCustom; generateCacheControlHeader: typeof generateCacheControlHeader; getPublicTokenHeaders: ReturnType< typeof createStorefrontUtilities >['getPublicTokenHeaders']; getPrivateTokenHeaders: ReturnType< typeof createStorefrontUtilities >['getPrivateTokenHeaders']; getShopifyDomain: ReturnType< typeof createStorefrontUtilities >['getShopifyDomain']; getApiUrl: ReturnType< typeof createStorefrontUtilities >['getStorefrontApiUrl']; isApiError: (error: any) => boolean; i18n: TI18n; } - StorefrontQueries: export interface StorefrontQueries { // Example of how a generated query type looks like: // '#graphql query q1 {...}': {return: Q1Query; variables: Q1QueryVariables}; } - AutoAddedVariableNames: 'country' | 'language' - StorefrontCommonExtraParams: { headers?: HeadersInit; storefrontApiVersion?: string; displayName?: string; } - StorefrontQueryOptions: StorefrontCommonExtraParams & { query: string; mutation?: never; cache?: CachingStrategy; } - StorefrontError: { errors?: StorefrontApiErrors; } ### mutate value: `(mutation: RawGqlString, ...options: IsOptionalVariables> extends true ? [(StorefrontCommonExtraParams & ClientVariables>]: StorefrontMutations[RawGqlString]["variables"][KeyType]; } & Partial>>)]: ({ [KeyType in keyof StorefrontMutations[RawGqlString]["variables"] as Filter>]: StorefrontMutations[RawGqlString]["variables"][KeyType]; } & Partial>>)[KeyType]; } : { readonly [variable: string]: unknown; }, Record<"variables", RawGqlString extends never ? { [KeyType in keyof ({ [KeyType in keyof StorefrontMutations[RawGqlString]["variables"] as Filter>]: StorefrontMutations[RawGqlString]["variables"][KeyType]; } & Partial>>)]: ({ [KeyType in keyof StorefrontMutations[RawGqlString]["variables"] as Filter>]: StorefrontMutations[RawGqlString]["variables"][KeyType]; } & Partial>>)[KeyType]; } : { readonly [variable: string]: unknown; }>>)?] : [StorefrontCommonExtraParams & ClientVariables>]: StorefrontMutations[RawGqlString]["variables"][KeyType]; } & Partial>>)]: ({ [KeyType in keyof StorefrontMutations[RawGqlString]["variables"] as Filter>]: StorefrontMutations[RawGqlString]["variables"][KeyType]; } & Partial>>)[KeyType]; } : { readonly [variable: string]: unknown; }, Record<"variables", RawGqlString extends never ? { [KeyType in keyof ({ [KeyType in keyof StorefrontMutations[RawGqlString]["variables"] as Filter>]: StorefrontMutations[RawGqlString]["variables"][KeyType]; } & Partial>>)]: ({ [KeyType in keyof StorefrontMutations[RawGqlString]["variables"] as Filter>]: StorefrontMutations[RawGqlString]["variables"][KeyType]; } & Partial>>)[KeyType]; } : { readonly [variable: string]: unknown; }>>]) => Promise & StorefrontError>` - Storefront: { query: < OverrideReturnType extends any = never, RawGqlString extends string = string, >( query: RawGqlString, ...options: ClientVariablesInRestParams< StorefrontQueries, RawGqlString, StorefrontCommonExtraParams & Pick, AutoAddedVariableNames > ) => Promise< ClientReturn & StorefrontError >; mutate: < OverrideReturnType extends any = never, RawGqlString extends string = string, >( mutation: RawGqlString, ...options: ClientVariablesInRestParams< StorefrontMutations, RawGqlString, StorefrontCommonExtraParams, AutoAddedVariableNames > ) => Promise< ClientReturn & StorefrontError >; cache?: Cache; CacheNone: typeof CacheNone; CacheLong: typeof CacheLong; CacheShort: typeof CacheShort; CacheCustom: typeof CacheCustom; generateCacheControlHeader: typeof generateCacheControlHeader; getPublicTokenHeaders: ReturnType< typeof createStorefrontUtilities >['getPublicTokenHeaders']; getPrivateTokenHeaders: ReturnType< typeof createStorefrontUtilities >['getPrivateTokenHeaders']; getShopifyDomain: ReturnType< typeof createStorefrontUtilities >['getShopifyDomain']; getApiUrl: ReturnType< typeof createStorefrontUtilities >['getStorefrontApiUrl']; isApiError: (error: any) => boolean; i18n: TI18n; } - AutoAddedVariableNames: 'country' | 'language' - StorefrontCommonExtraParams: { headers?: HeadersInit; storefrontApiVersion?: string; displayName?: string; } - StorefrontError: { errors?: StorefrontApiErrors; } - StorefrontMutations: export interface StorefrontMutations { // Example of how a generated mutation type looks like: // '#graphql mutation m1 {...}': {return: M1Mutation; variables: M1MutationVariables}; } ### cache value: `Cache` ### CacheNone value: `() => NoStoreStrategy` - NoStoreStrategy: { mode: string; } ### CacheLong value: `(overrideOptions?: AllCacheOptions) => AllCacheOptions` - AllCacheOptions: export interface AllCacheOptions { /** * The caching mode, generally `public`, `private`, or `no-store`. */ mode?: string; /** * The maximum amount of time in seconds that a resource will be considered fresh. See `max-age` in the [MDN docs](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control#:~:text=Response%20Directives-,max%2Dage,-The%20max%2Dage). */ maxAge?: number; /** * Indicate that the cache should serve the stale response in the background while revalidating the cache. See `stale-while-revalidate` in the [MDN docs](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control#stale-while-revalidate). */ staleWhileRevalidate?: number; /** * Similar to `maxAge` but specific to shared caches. See `s-maxage` in the [MDN docs](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control#s-maxage). */ sMaxAge?: number; /** * Indicate that the cache should serve the stale response if an error occurs while revalidating the cache. See `stale-if-error` in the [MDN docs](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control#stale-if-error). */ staleIfError?: number; } ### CacheShort value: `(overrideOptions?: AllCacheOptions) => AllCacheOptions` - AllCacheOptions: export interface AllCacheOptions { /** * The caching mode, generally `public`, `private`, or `no-store`. */ mode?: string; /** * The maximum amount of time in seconds that a resource will be considered fresh. See `max-age` in the [MDN docs](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control#:~:text=Response%20Directives-,max%2Dage,-The%20max%2Dage). */ maxAge?: number; /** * Indicate that the cache should serve the stale response in the background while revalidating the cache. See `stale-while-revalidate` in the [MDN docs](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control#stale-while-revalidate). */ staleWhileRevalidate?: number; /** * Similar to `maxAge` but specific to shared caches. See `s-maxage` in the [MDN docs](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control#s-maxage). */ sMaxAge?: number; /** * Indicate that the cache should serve the stale response if an error occurs while revalidating the cache. See `stale-if-error` in the [MDN docs](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control#stale-if-error). */ staleIfError?: number; } ### CacheCustom value: `(overrideOptions: AllCacheOptions) => AllCacheOptions` - AllCacheOptions: export interface AllCacheOptions { /** * The caching mode, generally `public`, `private`, or `no-store`. */ mode?: string; /** * The maximum amount of time in seconds that a resource will be considered fresh. See `max-age` in the [MDN docs](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control#:~:text=Response%20Directives-,max%2Dage,-The%20max%2Dage). */ maxAge?: number; /** * Indicate that the cache should serve the stale response in the background while revalidating the cache. See `stale-while-revalidate` in the [MDN docs](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control#stale-while-revalidate). */ staleWhileRevalidate?: number; /** * Similar to `maxAge` but specific to shared caches. See `s-maxage` in the [MDN docs](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control#s-maxage). */ sMaxAge?: number; /** * Indicate that the cache should serve the stale response if an error occurs while revalidating the cache. See `stale-if-error` in the [MDN docs](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control#stale-if-error). */ staleIfError?: number; } ### generateCacheControlHeader value: `(cacheOptions: AllCacheOptions) => string` - AllCacheOptions: export interface AllCacheOptions { /** * The caching mode, generally `public`, `private`, or `no-store`. */ mode?: string; /** * The maximum amount of time in seconds that a resource will be considered fresh. See `max-age` in the [MDN docs](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control#:~:text=Response%20Directives-,max%2Dage,-The%20max%2Dage). */ maxAge?: number; /** * Indicate that the cache should serve the stale response in the background while revalidating the cache. See `stale-while-revalidate` in the [MDN docs](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control#stale-while-revalidate). */ staleWhileRevalidate?: number; /** * Similar to `maxAge` but specific to shared caches. See `s-maxage` in the [MDN docs](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control#s-maxage). */ sMaxAge?: number; /** * Indicate that the cache should serve the stale response if an error occurs while revalidating the cache. See `stale-if-error` in the [MDN docs](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control#stale-if-error). */ staleIfError?: number; } ### getPublicTokenHeaders value: `(props?: Partial> & Pick) => Record` - Storefront: { query: < OverrideReturnType extends any = never, RawGqlString extends string = string, >( query: RawGqlString, ...options: ClientVariablesInRestParams< StorefrontQueries, RawGqlString, StorefrontCommonExtraParams & Pick, AutoAddedVariableNames > ) => Promise< ClientReturn & StorefrontError >; mutate: < OverrideReturnType extends any = never, RawGqlString extends string = string, >( mutation: RawGqlString, ...options: ClientVariablesInRestParams< StorefrontMutations, RawGqlString, StorefrontCommonExtraParams, AutoAddedVariableNames > ) => Promise< ClientReturn & StorefrontError >; cache?: Cache; CacheNone: typeof CacheNone; CacheLong: typeof CacheLong; CacheShort: typeof CacheShort; CacheCustom: typeof CacheCustom; generateCacheControlHeader: typeof generateCacheControlHeader; getPublicTokenHeaders: ReturnType< typeof createStorefrontUtilities >['getPublicTokenHeaders']; getPrivateTokenHeaders: ReturnType< typeof createStorefrontUtilities >['getPrivateTokenHeaders']; getShopifyDomain: ReturnType< typeof createStorefrontUtilities >['getShopifyDomain']; getApiUrl: ReturnType< typeof createStorefrontUtilities >['getStorefrontApiUrl']; isApiError: (error: any) => boolean; i18n: TI18n; } ### getPrivateTokenHeaders value: `(props?: Partial> & Pick & { buyerIp?: string; }) => Record` - Storefront: { query: < OverrideReturnType extends any = never, RawGqlString extends string = string, >( query: RawGqlString, ...options: ClientVariablesInRestParams< StorefrontQueries, RawGqlString, StorefrontCommonExtraParams & Pick, AutoAddedVariableNames > ) => Promise< ClientReturn & StorefrontError >; mutate: < OverrideReturnType extends any = never, RawGqlString extends string = string, >( mutation: RawGqlString, ...options: ClientVariablesInRestParams< StorefrontMutations, RawGqlString, StorefrontCommonExtraParams, AutoAddedVariableNames > ) => Promise< ClientReturn & StorefrontError >; cache?: Cache; CacheNone: typeof CacheNone; CacheLong: typeof CacheLong; CacheShort: typeof CacheShort; CacheCustom: typeof CacheCustom; generateCacheControlHeader: typeof generateCacheControlHeader; getPublicTokenHeaders: ReturnType< typeof createStorefrontUtilities >['getPublicTokenHeaders']; getPrivateTokenHeaders: ReturnType< typeof createStorefrontUtilities >['getPrivateTokenHeaders']; getShopifyDomain: ReturnType< typeof createStorefrontUtilities >['getShopifyDomain']; getApiUrl: ReturnType< typeof createStorefrontUtilities >['getStorefrontApiUrl']; isApiError: (error: any) => boolean; i18n: TI18n; } ### getShopifyDomain value: `(props?: Partial>) => string` - Storefront: { query: < OverrideReturnType extends any = never, RawGqlString extends string = string, >( query: RawGqlString, ...options: ClientVariablesInRestParams< StorefrontQueries, RawGqlString, StorefrontCommonExtraParams & Pick, AutoAddedVariableNames > ) => Promise< ClientReturn & StorefrontError >; mutate: < OverrideReturnType extends any = never, RawGqlString extends string = string, >( mutation: RawGqlString, ...options: ClientVariablesInRestParams< StorefrontMutations, RawGqlString, StorefrontCommonExtraParams, AutoAddedVariableNames > ) => Promise< ClientReturn & StorefrontError >; cache?: Cache; CacheNone: typeof CacheNone; CacheLong: typeof CacheLong; CacheShort: typeof CacheShort; CacheCustom: typeof CacheCustom; generateCacheControlHeader: typeof generateCacheControlHeader; getPublicTokenHeaders: ReturnType< typeof createStorefrontUtilities >['getPublicTokenHeaders']; getPrivateTokenHeaders: ReturnType< typeof createStorefrontUtilities >['getPrivateTokenHeaders']; getShopifyDomain: ReturnType< typeof createStorefrontUtilities >['getShopifyDomain']; getApiUrl: ReturnType< typeof createStorefrontUtilities >['getStorefrontApiUrl']; isApiError: (error: any) => boolean; i18n: TI18n; } ### getApiUrl value: `(props?: Partial>) => string` - Storefront: { query: < OverrideReturnType extends any = never, RawGqlString extends string = string, >( query: RawGqlString, ...options: ClientVariablesInRestParams< StorefrontQueries, RawGqlString, StorefrontCommonExtraParams & Pick, AutoAddedVariableNames > ) => Promise< ClientReturn & StorefrontError >; mutate: < OverrideReturnType extends any = never, RawGqlString extends string = string, >( mutation: RawGqlString, ...options: ClientVariablesInRestParams< StorefrontMutations, RawGqlString, StorefrontCommonExtraParams, AutoAddedVariableNames > ) => Promise< ClientReturn & StorefrontError >; cache?: Cache; CacheNone: typeof CacheNone; CacheLong: typeof CacheLong; CacheShort: typeof CacheShort; CacheCustom: typeof CacheCustom; generateCacheControlHeader: typeof generateCacheControlHeader; getPublicTokenHeaders: ReturnType< typeof createStorefrontUtilities >['getPublicTokenHeaders']; getPrivateTokenHeaders: ReturnType< typeof createStorefrontUtilities >['getPrivateTokenHeaders']; getShopifyDomain: ReturnType< typeof createStorefrontUtilities >['getShopifyDomain']; getApiUrl: ReturnType< typeof createStorefrontUtilities >['getStorefrontApiUrl']; isApiError: (error: any) => boolean; i18n: TI18n; } ### isApiError value: `(error: any) => boolean` ### i18n value: `TI18n` ### StorefrontCommonExtraParams ### headers value: `HeadersInit` ### storefrontApiVersion value: `string` ### displayName value: `string` ### CachingStrategy Use the `CachingStrategy` to define a custom caching mechanism for your data. Or use one of the pre-defined caching strategies: CacheNone, CacheShort, CacheLong. ### mode value: `string` The caching mode, generally `public`, `private`, or `no-store`. ### maxAge value: `number` The maximum amount of time in seconds that a resource will be considered fresh. See `max-age` in the [MDN docs](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control#:~:text=Response%20Directives-,max%2Dage,-The%20max%2Dage). ### staleWhileRevalidate value: `number` Indicate that the cache should serve the stale response in the background while revalidating the cache. See `stale-while-revalidate` in the [MDN docs](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control#stale-while-revalidate). ### sMaxAge value: `number` Similar to `maxAge` but specific to shared caches. See `s-maxage` in the [MDN docs](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control#s-maxage). ### staleIfError value: `number` Indicate that the cache should serve the stale response if an error occurs while revalidating the cache. See `stale-if-error` in the [MDN docs](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control#stale-if-error). ### StorefrontError ### errors value: `StorefrontApiErrors` - Storefront: { query: < OverrideReturnType extends any = never, RawGqlString extends string = string, >( query: RawGqlString, ...options: ClientVariablesInRestParams< StorefrontQueries, RawGqlString, StorefrontCommonExtraParams & Pick, AutoAddedVariableNames > ) => Promise< ClientReturn & StorefrontError >; mutate: < OverrideReturnType extends any = never, RawGqlString extends string = string, >( mutation: RawGqlString, ...options: ClientVariablesInRestParams< StorefrontMutations, RawGqlString, StorefrontCommonExtraParams, AutoAddedVariableNames > ) => Promise< ClientReturn & StorefrontError >; cache?: Cache; CacheNone: typeof CacheNone; CacheLong: typeof CacheLong; CacheShort: typeof CacheShort; CacheCustom: typeof CacheCustom; generateCacheControlHeader: typeof generateCacheControlHeader; getPublicTokenHeaders: ReturnType< typeof createStorefrontUtilities >['getPublicTokenHeaders']; getPrivateTokenHeaders: ReturnType< typeof createStorefrontUtilities >['getPrivateTokenHeaders']; getShopifyDomain: ReturnType< typeof createStorefrontUtilities >['getShopifyDomain']; getApiUrl: ReturnType< typeof createStorefrontUtilities >['getStorefrontApiUrl']; isApiError: (error: any) => boolean; i18n: TI18n; } - StorefrontApiErrors: JsonGraphQLError[] | undefined ### NoStoreStrategy ### mode value: `string` ### AllCacheOptions Override options for a cache strategy. ### mode value: `string` The caching mode, generally `public`, `private`, or `no-store`. ### maxAge value: `number` The maximum amount of time in seconds that a resource will be considered fresh. See `max-age` in the [MDN docs](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control#:~:text=Response%20Directives-,max%2Dage,-The%20max%2Dage). ### staleWhileRevalidate value: `number` Indicate that the cache should serve the stale response in the background while revalidating the cache. See `stale-while-revalidate` in the [MDN docs](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control#stale-while-revalidate). ### sMaxAge value: `number` Similar to `maxAge` but specific to shared caches. See `s-maxage` in the [MDN docs](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control#s-maxage). ### staleIfError value: `number` Indicate that the cache should serve the stale response if an error occurs while revalidating the cache. See `stale-if-error` in the [MDN docs](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control#stale-if-error). ### CartMetafieldsSetFunction #### Returns: Promise #### Params: - metafields: MetafieldWithoutOwnerId[] - optionalParams: CartOptionalInput export type CartMetafieldsSetFunction = ( metafields: MetafieldWithoutOwnerId[], optionalParams?: CartOptionalInput, ) => Promise; ### CartOptionalInput ### cartId value: `string` The cart id. ### country value: `CountryCode` The country code. ### language value: `LanguageCode` The language code. ### CartQueryData ### cart value: `Cart` - Cart: Cart ### userErrors value: `CartUserError[] | MetafieldsSetUserError[] | MetafieldDeleteUserError[]` - Cart: Cart - CartUserError: CartUserError - MetafieldsSetUserError: MetafieldsSetUserError - MetafieldDeleteUserError: MetafieldDeleteUserError