---
title: cartGetDefault
description: Creates a function that returns a cart
api_version: 2024-01
api_name: hydrogen
source_url:
  html: 'https://shopify.dev/docs/api/hydrogen/2024-01/utilities/cartgetdefault'
  md: 'https://shopify.dev/docs/api/hydrogen/2024-01/utilities/cartgetdefault.md'
---

# cart​Get​Default

Creates a function that returns a cart

## cart​Get​Default([input1](#cartgetdefault-propertydetail-input1)​)

### Parameters

* input1

  CartGetOptions

  required

### Returns

* CartGetFunction

  ### CartGetFunction

  * export type CartGetFunction = ( cartInput?: CartGetProps, ) => Promise<CartReturn | null>;

### CartGetOptions

```ts
CartQueryOptions & {
  /**
   * The customer account client instance created by [`createCustomerAccountClient`](docs/api/hydrogen/latest/utilities/createcustomeraccountclient).
   */
  customerAccount?: CustomerAccount;
}
```

### CartQueryOptions

* storefront

  The storefront client instance created by \[\`createStorefrontClient\`]\(docs/api/hydrogen/latest/utilities/createstorefrontclient).

  ```ts
  Storefront
  ```

* getCartId

  A function that returns the cart ID.

  ```ts
  () => string
  ```

* cartFragment

  The cart fragment to override the one used in this query.

  ```ts
  string
  ```

```ts
{
  /**
   * The storefront client instance created by [`createStorefrontClient`](docs/api/hydrogen/latest/utilities/createstorefrontclient).
   */
  storefront: Storefront;
  /**
   * A function that returns the cart ID.
   */
  getCartId: () => string | undefined;
  /**
   * The cart fragment to override the one used in this query.
   */
  cartFragment?: string;
}
```

### Storefront

Interface to interact with the Storefront API.

* query

  ```ts
  <OverrideReturnType extends unknown = never, RawGqlString extends string = string>(query: RawGqlString, ...options: IsOptionalVariables<StorefrontQueries[RawGqlString]["variables"], AutoAddedVariableNames, Omit<StorefrontQueries[RawGqlString]["variables"], AutoAddedVariableNames>> extends true ? [(StorefrontCommonExtraParams & Pick<StorefrontQueryOptions, "cache"> & ClientVariables<StorefrontQueries, RawGqlString, AutoAddedVariableNames, "variables", RawGqlString extends never ? { [KeyType in keyof ({ [KeyType in keyof StorefrontQueries[RawGqlString]["variables"] as Filter<KeyType, Extract<keyof StorefrontQueries[RawGqlString]["variables"], AutoAddedVariableNames>>]: StorefrontQueries[RawGqlString]["variables"][KeyType]; } & Partial<Pick<StorefrontQueries[RawGqlString]["variables"], Extract<keyof StorefrontQueries[RawGqlString]["variables"], AutoAddedVariableNames>>>)]: ({ [KeyType in keyof StorefrontQueries[RawGqlString]["variables"] as Filter<KeyType, Extract<keyof StorefrontQueries[RawGqlString]["variables"], AutoAddedVariableNames>>]: StorefrontQueries[RawGqlString]["variables"][KeyType]; } & Partial<Pick<StorefrontQueries[RawGqlString]["variables"], Extract<keyof StorefrontQueries[RawGqlString]["variables"], AutoAddedVariableNames>>>)[KeyType]; } : { readonly [variable: string]: unknown; }, Record<"variables", RawGqlString extends never ? { [KeyType in keyof ({ [KeyType in keyof StorefrontQueries[RawGqlString]["variables"] as Filter<KeyType, Extract<keyof StorefrontQueries[RawGqlString]["variables"], AutoAddedVariableNames>>]: StorefrontQueries[RawGqlString]["variables"][KeyType]; } & Partial<Pick<StorefrontQueries[RawGqlString]["variables"], Extract<keyof StorefrontQueries[RawGqlString]["variables"], AutoAddedVariableNames>>>)]: ({ [KeyType in keyof StorefrontQueries[RawGqlString]["variables"] as Filter<KeyType, Extract<keyof StorefrontQueries[RawGqlString]["variables"], AutoAddedVariableNames>>]: StorefrontQueries[RawGqlString]["variables"][KeyType]; } & Partial<Pick<StorefrontQueries[RawGqlString]["variables"], Extract<keyof StorefrontQueries[RawGqlString]["variables"], AutoAddedVariableNames>>>)[KeyType]; } : { readonly [variable: string]: unknown; }>>)?] : [StorefrontCommonExtraParams & Pick<StorefrontQueryOptions, "cache"> & ClientVariables<StorefrontQueries, RawGqlString, AutoAddedVariableNames, "variables", RawGqlString extends never ? { [KeyType in keyof ({ [KeyType in keyof StorefrontQueries[RawGqlString]["variables"] as Filter<KeyType, Extract<keyof StorefrontQueries[RawGqlString]["variables"], AutoAddedVariableNames>>]: StorefrontQueries[RawGqlString]["variables"][KeyType]; } & Partial<Pick<StorefrontQueries[RawGqlString]["variables"], Extract<keyof StorefrontQueries[RawGqlString]["variables"], AutoAddedVariableNames>>>)]: ({ [KeyType in keyof StorefrontQueries[RawGqlString]["variables"] as Filter<KeyType, Extract<keyof StorefrontQueries[RawGqlString]["variables"], AutoAddedVariableNames>>]: StorefrontQueries[RawGqlString]["variables"][KeyType]; } & Partial<Pick<StorefrontQueries[RawGqlString]["variables"], Extract<keyof StorefrontQueries[RawGqlString]["variables"], AutoAddedVariableNames>>>)[KeyType]; } : { readonly [variable: string]: unknown; }, Record<"variables", RawGqlString extends never ? { [KeyType in keyof ({ [KeyType in keyof StorefrontQueries[RawGqlString]["variables"] as Filter<KeyType, Extract<keyof StorefrontQueries[RawGqlString]["variables"], AutoAddedVariableNames>>]: StorefrontQueries[RawGqlString]["variables"][KeyType]; } & Partial<Pick<StorefrontQueries[RawGqlString]["variables"], Extract<keyof StorefrontQueries[RawGqlString]["variables"], AutoAddedVariableNames>>>)]: ({ [KeyType in keyof StorefrontQueries[RawGqlString]["variables"] as Filter<KeyType, Extract<keyof StorefrontQueries[RawGqlString]["variables"], AutoAddedVariableNames>>]: StorefrontQueries[RawGqlString]["variables"][KeyType]; } & Partial<Pick<StorefrontQueries[RawGqlString]["variables"], Extract<keyof StorefrontQueries[RawGqlString]["variables"], AutoAddedVariableNames>>>)[KeyType]; } : { readonly [variable: string]: unknown; }>>]) => Promise<ClientReturn<StorefrontQueries, RawGqlString, OverrideReturnType> & StorefrontError>
  ```

* mutate

  ```ts
  <OverrideReturnType extends unknown = never, RawGqlString extends string = string>(mutation: RawGqlString, ...options: IsOptionalVariables<StorefrontMutations[RawGqlString]["variables"], AutoAddedVariableNames, Omit<StorefrontMutations[RawGqlString]["variables"], AutoAddedVariableNames>> extends true ? [(StorefrontCommonExtraParams & ClientVariables<StorefrontMutations, RawGqlString, AutoAddedVariableNames, "variables", RawGqlString extends never ? { [KeyType in keyof ({ [KeyType in keyof StorefrontMutations[RawGqlString]["variables"] as Filter<KeyType, Extract<keyof StorefrontMutations[RawGqlString]["variables"], AutoAddedVariableNames>>]: StorefrontMutations[RawGqlString]["variables"][KeyType]; } & Partial<Pick<StorefrontMutations[RawGqlString]["variables"], Extract<keyof StorefrontMutations[RawGqlString]["variables"], AutoAddedVariableNames>>>)]: ({ [KeyType in keyof StorefrontMutations[RawGqlString]["variables"] as Filter<KeyType, Extract<keyof StorefrontMutations[RawGqlString]["variables"], AutoAddedVariableNames>>]: StorefrontMutations[RawGqlString]["variables"][KeyType]; } & Partial<Pick<StorefrontMutations[RawGqlString]["variables"], Extract<keyof StorefrontMutations[RawGqlString]["variables"], AutoAddedVariableNames>>>)[KeyType]; } : { readonly [variable: string]: unknown; }, Record<"variables", RawGqlString extends never ? { [KeyType in keyof ({ [KeyType in keyof StorefrontMutations[RawGqlString]["variables"] as Filter<KeyType, Extract<keyof StorefrontMutations[RawGqlString]["variables"], AutoAddedVariableNames>>]: StorefrontMutations[RawGqlString]["variables"][KeyType]; } & Partial<Pick<StorefrontMutations[RawGqlString]["variables"], Extract<keyof StorefrontMutations[RawGqlString]["variables"], AutoAddedVariableNames>>>)]: ({ [KeyType in keyof StorefrontMutations[RawGqlString]["variables"] as Filter<KeyType, Extract<keyof StorefrontMutations[RawGqlString]["variables"], AutoAddedVariableNames>>]: StorefrontMutations[RawGqlString]["variables"][KeyType]; } & Partial<Pick<StorefrontMutations[RawGqlString]["variables"], Extract<keyof StorefrontMutations[RawGqlString]["variables"], AutoAddedVariableNames>>>)[KeyType]; } : { readonly [variable: string]: unknown; }>>)?] : [StorefrontCommonExtraParams & ClientVariables<StorefrontMutations, RawGqlString, AutoAddedVariableNames, "variables", RawGqlString extends never ? { [KeyType in keyof ({ [KeyType in keyof StorefrontMutations[RawGqlString]["variables"] as Filter<KeyType, Extract<keyof StorefrontMutations[RawGqlString]["variables"], AutoAddedVariableNames>>]: StorefrontMutations[RawGqlString]["variables"][KeyType]; } & Partial<Pick<StorefrontMutations[RawGqlString]["variables"], Extract<keyof StorefrontMutations[RawGqlString]["variables"], AutoAddedVariableNames>>>)]: ({ [KeyType in keyof StorefrontMutations[RawGqlString]["variables"] as Filter<KeyType, Extract<keyof StorefrontMutations[RawGqlString]["variables"], AutoAddedVariableNames>>]: StorefrontMutations[RawGqlString]["variables"][KeyType]; } & Partial<Pick<StorefrontMutations[RawGqlString]["variables"], Extract<keyof StorefrontMutations[RawGqlString]["variables"], AutoAddedVariableNames>>>)[KeyType]; } : { readonly [variable: string]: unknown; }, Record<"variables", RawGqlString extends never ? { [KeyType in keyof ({ [KeyType in keyof StorefrontMutations[RawGqlString]["variables"] as Filter<KeyType, Extract<keyof StorefrontMutations[RawGqlString]["variables"], AutoAddedVariableNames>>]: StorefrontMutations[RawGqlString]["variables"][KeyType]; } & Partial<Pick<StorefrontMutations[RawGqlString]["variables"], Extract<keyof StorefrontMutations[RawGqlString]["variables"], AutoAddedVariableNames>>>)]: ({ [KeyType in keyof StorefrontMutations[RawGqlString]["variables"] as Filter<KeyType, Extract<keyof StorefrontMutations[RawGqlString]["variables"], AutoAddedVariableNames>>]: StorefrontMutations[RawGqlString]["variables"][KeyType]; } & Partial<Pick<StorefrontMutations[RawGqlString]["variables"], Extract<keyof StorefrontMutations[RawGqlString]["variables"], AutoAddedVariableNames>>>)[KeyType]; } : { readonly [variable: string]: unknown; }>>]) => Promise<ClientReturn<StorefrontMutations, RawGqlString, OverrideReturnType> & StorefrontError>
  ```

* cache

  ```ts
  Cache
  ```

* CacheNone

  ```ts
  () => NoStoreStrategy
  ```

* CacheLong

  ```ts
  (overrideOptions?: AllCacheOptions) => AllCacheOptions
  ```

* CacheShort

  ```ts
  (overrideOptions?: AllCacheOptions) => AllCacheOptions
  ```

* CacheCustom

  ```ts
  (overrideOptions: AllCacheOptions) => AllCacheOptions
  ```

* generateCacheControlHeader

  ```ts
  (cacheOptions: AllCacheOptions) => string
  ```

* getPublicTokenHeaders

  ```ts
  (props?: Partial<Pick<StorefrontClientProps, "contentType">> & Pick<StorefrontClientProps, "publicStorefrontToken">) => Record<string, string>
  ```

* getPrivateTokenHeaders

  ```ts
  (props?: Partial<Pick<StorefrontClientProps, "contentType">> & Pick<StorefrontClientProps, "privateStorefrontToken"> & { buyerIp?: string; }) => Record<string, string>
  ```

* getShopifyDomain

  ```ts
  (props?: Partial<Pick<StorefrontClientProps, "storeDomain">>) => string
  ```

* getApiUrl

  ```ts
  (props?: Partial<Pick<StorefrontClientProps, "storefrontApiVersion" | "storeDomain">>) => string
  ```

* isApiError

  ```ts
  (error: any) => boolean
  ```

* i18n

  ```ts
  TI18n
  ```

```ts
{
  query: <
    OverrideReturnType extends any = never,
    RawGqlString extends string = string,
  >(
    query: RawGqlString,
    ...options: ClientVariablesInRestParams<
      StorefrontQueries,
      RawGqlString,
      StorefrontCommonExtraParams & Pick<StorefrontQueryOptions, 'cache'>,
      AutoAddedVariableNames
    >
  ) => Promise<
    ClientReturn<StorefrontQueries, RawGqlString, OverrideReturnType> &
      StorefrontError
  >;
  mutate: <
    OverrideReturnType extends any = never,
    RawGqlString extends string = string,
  >(
    mutation: RawGqlString,
    ...options: ClientVariablesInRestParams<
      StorefrontMutations,
      RawGqlString,
      StorefrontCommonExtraParams,
      AutoAddedVariableNames
    >
  ) => Promise<
    ClientReturn<StorefrontMutations, RawGqlString, OverrideReturnType> &
      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

Maps all the queries found in the project to variables and return types.



```ts
export interface StorefrontQueries {
  // Example of how a generated query type looks like:
  // '#graphql query q1 {...}': {return: Q1Query; variables: Q1QueryVariables};
}
```

### AutoAddedVariableNames

```ts
'country' | 'language'
```

### StorefrontCommonExtraParams

* headers

  ```ts
  HeadersInit
  ```

* storefrontApiVersion

  ```ts
  string
  ```

* displayName

  ```ts
  string
  ```

```ts
{
  headers?: HeadersInit;
  storefrontApiVersion?: string;
  displayName?: string;
}
```

### StorefrontQueryOptions

```ts
StorefrontCommonExtraParams & {
  query: string;
  mutation?: never;
  cache?: CachingStrategy;
}
```

### 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

  The caching mode, generally \`public\`, \`private\`, or \`no-store\`.

  ```ts
  string
  ```

* maxAge

  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).

  ```ts
  number
  ```

* staleWhileRevalidate

  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).

  ```ts
  number
  ```

* sMaxAge

  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).

  ```ts
  number
  ```

* staleIfError

  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).

  ```ts
  number
  ```

```ts
AllCacheOptions
```

### StorefrontError

* errors

  ```ts
  StorefrontApiErrors
  ```

```ts
{
  errors?: StorefrontApiErrors;
}
```

### StorefrontApiErrors

```ts
JsonGraphQLError[] | undefined
```

### StorefrontMutations

Maps all the mutations found in the project to variables and return types.



```ts
export interface StorefrontMutations {
  // Example of how a generated mutation type looks like:
  // '#graphql mutation m1 {...}': {return: M1Mutation; variables: M1MutationVariables};
}
```

### NoStoreStrategy

* mode

  ```ts
  string
  ```

```ts
{
  mode: string;
}
```

### AllCacheOptions

Override options for a cache strategy.

* mode

  The caching mode, generally \`public\`, \`private\`, or \`no-store\`.

  ```ts
  string
  ```

* maxAge

  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).

  ```ts
  number
  ```

* staleWhileRevalidate

  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).

  ```ts
  number
  ```

* sMaxAge

  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).

  ```ts
  number
  ```

* staleIfError

  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).

  ```ts
  number
  ```

```ts
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;
}
```

### CustomerAccount

* login

  Start the OAuth login flow. This function should be called and returned from a Remix action. It redirects the customer to a Shopify login domain. It also defined the final path the customer lands on at the end of the oAuth flow with the value of the \`return\_to\` query param. (This is automatically setup unless \`customAuthStatusHandler\` option is in use)

  ```ts
  (options?: LoginOptions) => Promise<Response>
  ```

* authorize

  On successful login, the customer redirects back to your app. This function validates the OAuth response and exchanges the authorization code for an access token and refresh token. It also persists the tokens on your session. This function should be called and returned from the Remix loader configured as the redirect URI within the Customer Account API settings in admin.

  ```ts
  () => Promise<Response>
  ```

* isLoggedIn

  Returns if the customer is logged in. It also checks if the access token is expired and refreshes it if needed.

  ```ts
  () => Promise<boolean>
  ```

* handleAuthStatus

  Check for a not logged in customer and redirect customer to login page. The redirect can be overwritten with \`customAuthStatusHandler\` option.

  ```ts
  () => void | DataFunctionValue
  ```

* getAccessToken

  Returns CustomerAccessToken if the customer is logged in. It also run a expiry check and does a token refresh if needed.

  ```ts
  () => Promise<string>
  ```

* getApiUrl

  Creates the fully-qualified URL to your store's GraphQL endpoint.

  ```ts
  () => string
  ```

* logout

  Logout the customer by clearing the session and redirecting to the login domain. It should be called and returned from a Remix action. The path app should redirect to after logout can be setup in Customer Account API settings in admin.

  ```ts
  () => Promise<Response>
  ```

* query

  Execute a GraphQL query against the Customer Account API. This method execute \`handleAuthStatus()\` ahead of query.

  ```ts
  <OverrideReturnType extends unknown = never, RawGqlString extends string = string>(query: RawGqlString, ...options: IsOptionalVariables<CustomerAccountQueries[RawGqlString]["variables"], never, Omit<CustomerAccountQueries[RawGqlString]["variables"], never>> extends true ? [({} & ClientVariables<CustomerAccountQueries, RawGqlString, never, "variables", RawGqlString extends never ? { [KeyType in keyof ({ [KeyType in keyof CustomerAccountQueries[RawGqlString]["variables"] as Filter<KeyType, Extract<keyof CustomerAccountQueries[RawGqlString]["variables"], never>>]: CustomerAccountQueries[RawGqlString]["variables"][KeyType]; } & Partial<Pick<CustomerAccountQueries[RawGqlString]["variables"], Extract<keyof CustomerAccountQueries[RawGqlString]["variables"], never>>>)]: ({ [KeyType in keyof CustomerAccountQueries[RawGqlString]["variables"] as Filter<KeyType, Extract<keyof CustomerAccountQueries[RawGqlString]["variables"], never>>]: CustomerAccountQueries[RawGqlString]["variables"][KeyType]; } & Partial<Pick<CustomerAccountQueries[RawGqlString]["variables"], Extract<keyof CustomerAccountQueries[RawGqlString]["variables"], never>>>)[KeyType]; } : { readonly [variable: string]: unknown; }, Record<"variables", RawGqlString extends never ? { [KeyType in keyof ({ [KeyType in keyof CustomerAccountQueries[RawGqlString]["variables"] as Filter<KeyType, Extract<keyof CustomerAccountQueries[RawGqlString]["variables"], never>>]: CustomerAccountQueries[RawGqlString]["variables"][KeyType]; } & Partial<Pick<CustomerAccountQueries[RawGqlString]["variables"], Extract<keyof CustomerAccountQueries[RawGqlString]["variables"], never>>>)]: ({ [KeyType in keyof CustomerAccountQueries[RawGqlString]["variables"] as Filter<KeyType, Extract<keyof CustomerAccountQueries[RawGqlString]["variables"], never>>]: CustomerAccountQueries[RawGqlString]["variables"][KeyType]; } & Partial<Pick<CustomerAccountQueries[RawGqlString]["variables"], Extract<keyof CustomerAccountQueries[RawGqlString]["variables"], never>>>)[KeyType]; } : { readonly [variable: string]: unknown; }>>)?] : [{} & ClientVariables<CustomerAccountQueries, RawGqlString, never, "variables", RawGqlString extends never ? { [KeyType in keyof ({ [KeyType in keyof CustomerAccountQueries[RawGqlString]["variables"] as Filter<KeyType, Extract<keyof CustomerAccountQueries[RawGqlString]["variables"], never>>]: CustomerAccountQueries[RawGqlString]["variables"][KeyType]; } & Partial<Pick<CustomerAccountQueries[RawGqlString]["variables"], Extract<keyof CustomerAccountQueries[RawGqlString]["variables"], never>>>)]: ({ [KeyType in keyof CustomerAccountQueries[RawGqlString]["variables"] as Filter<KeyType, Extract<keyof CustomerAccountQueries[RawGqlString]["variables"], never>>]: CustomerAccountQueries[RawGqlString]["variables"][KeyType]; } & Partial<Pick<CustomerAccountQueries[RawGqlString]["variables"], Extract<keyof CustomerAccountQueries[RawGqlString]["variables"], never>>>)[KeyType]; } : { readonly [variable: string]: unknown; }, Record<"variables", RawGqlString extends never ? { [KeyType in keyof ({ [KeyType in keyof CustomerAccountQueries[RawGqlString]["variables"] as Filter<KeyType, Extract<keyof CustomerAccountQueries[RawGqlString]["variables"], never>>]: CustomerAccountQueries[RawGqlString]["variables"][KeyType]; } & Partial<Pick<CustomerAccountQueries[RawGqlString]["variables"], Extract<keyof CustomerAccountQueries[RawGqlString]["variables"], never>>>)]: ({ [KeyType in keyof CustomerAccountQueries[RawGqlString]["variables"] as Filter<KeyType, Extract<keyof CustomerAccountQueries[RawGqlString]["variables"], never>>]: CustomerAccountQueries[RawGqlString]["variables"][KeyType]; } & Partial<Pick<CustomerAccountQueries[RawGqlString]["variables"], Extract<keyof CustomerAccountQueries[RawGqlString]["variables"], never>>>)[KeyType]; } : { readonly [variable: string]: unknown; }>>]) => Promise<Omit<CustomerAPIResponse<ClientReturn<CustomerAccountQueries, RawGqlString, OverrideReturnType>>, "errors"> & { errors?: Pick<GraphQLError, "name" | "message" | "path" | "extensions" | "locations" | "stack">[]; }>
  ```

* mutate

  Execute a GraphQL mutation against the Customer Account API. This method execute \`handleAuthStatus()\` ahead of mutation.

  ```ts
  <OverrideReturnType extends unknown = never, RawGqlString extends string = string>(mutation: RawGqlString, ...options: IsOptionalVariables<CustomerAccountMutations[RawGqlString]["variables"], never, Omit<CustomerAccountMutations[RawGqlString]["variables"], never>> extends true ? [({} & ClientVariables<CustomerAccountMutations, RawGqlString, never, "variables", RawGqlString extends never ? { [KeyType in keyof ({ [KeyType in keyof CustomerAccountMutations[RawGqlString]["variables"] as Filter<KeyType, Extract<keyof CustomerAccountMutations[RawGqlString]["variables"], never>>]: CustomerAccountMutations[RawGqlString]["variables"][KeyType]; } & Partial<Pick<CustomerAccountMutations[RawGqlString]["variables"], Extract<keyof CustomerAccountMutations[RawGqlString]["variables"], never>>>)]: ({ [KeyType in keyof CustomerAccountMutations[RawGqlString]["variables"] as Filter<KeyType, Extract<keyof CustomerAccountMutations[RawGqlString]["variables"], never>>]: CustomerAccountMutations[RawGqlString]["variables"][KeyType]; } & Partial<Pick<CustomerAccountMutations[RawGqlString]["variables"], Extract<keyof CustomerAccountMutations[RawGqlString]["variables"], never>>>)[KeyType]; } : { readonly [variable: string]: unknown; }, Record<"variables", RawGqlString extends never ? { [KeyType in keyof ({ [KeyType in keyof CustomerAccountMutations[RawGqlString]["variables"] as Filter<KeyType, Extract<keyof CustomerAccountMutations[RawGqlString]["variables"], never>>]: CustomerAccountMutations[RawGqlString]["variables"][KeyType]; } & Partial<Pick<CustomerAccountMutations[RawGqlString]["variables"], Extract<keyof CustomerAccountMutations[RawGqlString]["variables"], never>>>)]: ({ [KeyType in keyof CustomerAccountMutations[RawGqlString]["variables"] as Filter<KeyType, Extract<keyof CustomerAccountMutations[RawGqlString]["variables"], never>>]: CustomerAccountMutations[RawGqlString]["variables"][KeyType]; } & Partial<Pick<CustomerAccountMutations[RawGqlString]["variables"], Extract<keyof CustomerAccountMutations[RawGqlString]["variables"], never>>>)[KeyType]; } : { readonly [variable: string]: unknown; }>>)?] : [{} & ClientVariables<CustomerAccountMutations, RawGqlString, never, "variables", RawGqlString extends never ? { [KeyType in keyof ({ [KeyType in keyof CustomerAccountMutations[RawGqlString]["variables"] as Filter<KeyType, Extract<keyof CustomerAccountMutations[RawGqlString]["variables"], never>>]: CustomerAccountMutations[RawGqlString]["variables"][KeyType]; } & Partial<Pick<CustomerAccountMutations[RawGqlString]["variables"], Extract<keyof CustomerAccountMutations[RawGqlString]["variables"], never>>>)]: ({ [KeyType in keyof CustomerAccountMutations[RawGqlString]["variables"] as Filter<KeyType, Extract<keyof CustomerAccountMutations[RawGqlString]["variables"], never>>]: CustomerAccountMutations[RawGqlString]["variables"][KeyType]; } & Partial<Pick<CustomerAccountMutations[RawGqlString]["variables"], Extract<keyof CustomerAccountMutations[RawGqlString]["variables"], never>>>)[KeyType]; } : { readonly [variable: string]: unknown; }, Record<"variables", RawGqlString extends never ? { [KeyType in keyof ({ [KeyType in keyof CustomerAccountMutations[RawGqlString]["variables"] as Filter<KeyType, Extract<keyof CustomerAccountMutations[RawGqlString]["variables"], never>>]: CustomerAccountMutations[RawGqlString]["variables"][KeyType]; } & Partial<Pick<CustomerAccountMutations[RawGqlString]["variables"], Extract<keyof CustomerAccountMutations[RawGqlString]["variables"], never>>>)]: ({ [KeyType in keyof CustomerAccountMutations[RawGqlString]["variables"] as Filter<KeyType, Extract<keyof CustomerAccountMutations[RawGqlString]["variables"], never>>]: CustomerAccountMutations[RawGqlString]["variables"][KeyType]; } & Partial<Pick<CustomerAccountMutations[RawGqlString]["variables"], Extract<keyof CustomerAccountMutations[RawGqlString]["variables"], never>>>)[KeyType]; } : { readonly [variable: string]: unknown; }>>]) => Promise<Omit<CustomerAPIResponse<ClientReturn<CustomerAccountMutations, RawGqlString, OverrideReturnType>>, "errors"> & { errors?: Pick<GraphQLError, "name" | "message" | "path" | "extensions" | "locations" | "stack">[]; }>
  ```

```ts
{
  /** Start the OAuth login flow. This function should be called and returned from a Remix action.
   * It redirects the customer to a Shopify login domain. It also defined the final path the customer
   * lands on at the end of the oAuth flow with the value of the `return_to` query param. (This is
   * automatically setup unless `customAuthStatusHandler` option is in use)
   *
   * @param options.uiLocales - The displayed language of the login page. Only support for the following languages:
   * `en`, `fr`, `cs`, `da`, `de`, `es`, `fi`, `it`, `ja`, `ko`, `nb`, `nl`, `pl`, `pt-BR`, `pt-PT`,
   * `sv`, `th`, `tr`, `vi`, `zh-CN`, `zh-TW`. If supplied any other language code, it will default to `en`.
   * */
  login: (options?: LoginOptions) => Promise<Response>;
  /** On successful login, the customer redirects back to your app. This function validates the OAuth response and exchanges the authorization code for an access token and refresh token. It also persists the tokens on your session. This function should be called and returned from the Remix loader configured as the redirect URI within the Customer Account API settings in admin. */
  authorize: () => Promise<Response>;
  /** Returns if the customer is logged in. It also checks if the access token is expired and refreshes it if needed. */
  isLoggedIn: () => Promise<boolean>;
  /** Check for a not logged in customer and redirect customer to login page. The redirect can be overwritten with `customAuthStatusHandler` option. */
  handleAuthStatus: () => void | DataFunctionValue;
  /** Returns CustomerAccessToken if the customer is logged in. It also run a expiry check and does a token refresh if needed. */
  getAccessToken: () => Promise<string | undefined>;
  /** Creates the fully-qualified URL to your store's GraphQL endpoint.*/
  getApiUrl: () => string;
  /** Logout the customer by clearing the session and redirecting to the login domain. It should be called and returned from a Remix action. The path app should redirect to after logout can be setup in Customer Account API settings in admin.*/
  logout: () => Promise<Response>;
  /** Execute a GraphQL query against the Customer Account API. This method execute `handleAuthStatus()` ahead of query. */
  query: <
    OverrideReturnType extends any = never,
    RawGqlString extends string = string,
  >(
    query: RawGqlString,
    ...options: ClientVariablesInRestParams<
      CustomerAccountQueries,
      RawGqlString
    >
  ) => Promise<
    Omit<
      CustomerAPIResponse<
        ClientReturn<CustomerAccountQueries, RawGqlString, OverrideReturnType>
      >,
      'errors'
    > & {errors?: JsonGraphQLError[]}
  >;
  /** Execute a GraphQL mutation against the Customer Account API. This method execute `handleAuthStatus()` ahead of mutation. */
  mutate: <
    OverrideReturnType extends any = never,
    RawGqlString extends string = string,
  >(
    mutation: RawGqlString,
    ...options: ClientVariablesInRestParams<
      CustomerAccountMutations,
      RawGqlString
    >
  ) => Promise<
    Omit<
      CustomerAPIResponse<
        ClientReturn<CustomerAccountMutations, RawGqlString, OverrideReturnType>
      >,
      'errors'
    > & {errors?: JsonGraphQLError[]}
  >;
}
```

### LoginOptions

* uiLocales

  ```ts
  LanguageCode
  ```

```ts
{
  uiLocales?: LanguageCode;
}
```

### DataFunctionValue

```ts
Response | NonNullable<unknown> | null
```

### CustomerAccountQueries



```ts
export interface CustomerAccountQueries {
  // Example of how a generated query type looks like:
  // '#graphql query q1 {...}': {return: Q1Query; variables: Q1QueryVariables};
}
```

### CustomerAccountMutations



```ts
export interface CustomerAccountMutations {
  // Example of how a generated mutation type looks like:
  // '#graphql mutation m1 {...}': {return: M1Mutation; variables: M1MutationVariables};
}
```

### CartGetFunction

* cartInput

  ```ts
  CartGetProps
  ```

Promise\<CartReturn | null>

```ts
Promise<CartReturn | null>
```

```ts
export type CartGetFunction = (
  cartInput?: CartGetProps,
) => Promise<CartReturn | null>;
```

### CartGetProps

* cartId

  The cart ID.

  ```ts
  string
  ```

* country

  The country code.

  ```ts
  CountryCode
  ```

* language

  The language code.

  ```ts
  LanguageCode
  ```

* numCartLines

  The number of cart lines to be returned.

  ```ts
  number
  ```

```ts
{
  /**
   * The cart ID.
   * @default cart.getCartId();
   */
  cartId?: string;
  /**
   * The country code.
   * @default storefront.i18n.country
   */
  country?: CountryCode;
  /**
   * The language code.
   * @default storefront.i18n.language
   */
  language?: LanguageCode;
  /**
   * The number of cart lines to be returned.
   * @default 100
   */
  numCartLines?: number;
}
```

### CartReturn

```ts
Cart & {
  errors?: StorefrontApiErrors;
}
```

### Cart



```ts
Cart
```

Examples

### Examples

* #### example

  ##### Description

  This is the default example

  ##### JavaScript

  ```js
  import {cartGetDefault} from '@shopify/hydrogen';

  const cartGet = cartGetDefault({
    storefront,
    getCartId,
  });

  const result = await cartGet();
  ```