347 lines
6.2 KiB
Markdown
347 lines
6.2 KiB
Markdown
---
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id: MutationObserverOptions
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title: MutationObserverOptions
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---
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Defined in: [packages/query-core/src/types.ts:1267](https://github.com/TanStack/query/blob/main/packages/query-core/src/types.ts#L1267)
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## Extends
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- `MutationOptions`\<`TData`, `TError`, `TVariables`, `TOnMutateResult`\>
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## Type Parameters
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### TData
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`TData` = `unknown`
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### TError
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`TError` = [`DefaultError`](../type-aliases/DefaultError.md)
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### TVariables
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`TVariables` = `void`
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### TOnMutateResult
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`TOnMutateResult` = `unknown`
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## Properties
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### gcTime?
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```ts
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optional gcTime: number;
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```
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Defined in: [packages/query-core/src/types.ts:1260](https://github.com/TanStack/query/blob/main/packages/query-core/src/types.ts#L1260)
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The time in milliseconds that an unused/inactive mutation remains in memory before it is
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garbage collected.
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Defaults to `5 * 60 * 1000` (5 minutes), or `Infinity` during SSR.
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#### Inherited from
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```ts
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MutationOptions.gcTime
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```
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***
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### meta?
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```ts
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optional meta: Record<string, unknown>;
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```
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Defined in: [packages/query-core/src/types.ts:1263](https://github.com/TanStack/query/blob/main/packages/query-core/src/types.ts#L1263)
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#### Inherited from
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```ts
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MutationOptions.meta
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```
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***
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### mutationFn?
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```ts
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optional mutationFn: MutationFunction<TData, TVariables>;
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```
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Defined in: [packages/query-core/src/types.ts:1206](https://github.com/TanStack/query/blob/main/packages/query-core/src/types.ts#L1206)
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#### Inherited from
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```ts
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MutationOptions.mutationFn
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```
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***
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### mutationKey?
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```ts
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optional mutationKey: readonly unknown[];
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```
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Defined in: [packages/query-core/src/types.ts:1207](https://github.com/TanStack/query/blob/main/packages/query-core/src/types.ts#L1207)
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#### Inherited from
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```ts
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MutationOptions.mutationKey
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```
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***
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### networkMode?
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```ts
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optional networkMode: NetworkMode;
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```
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Defined in: [packages/query-core/src/types.ts:1253](https://github.com/TanStack/query/blob/main/packages/query-core/src/types.ts#L1253)
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Controls whether a mutation is allowed to run based on the current network connectivity.
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Defaults to `'online'`.
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#### See
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[Network Mode](https://tanstack.com/query/latest/docs/framework/react/guides/network-mode) for more information.
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#### Inherited from
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```ts
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MutationOptions.networkMode
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```
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***
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### onError()?
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```ts
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optional onError: (error, variables, onMutateResult, context) => unknown;
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```
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Defined in: [packages/query-core/src/types.ts:1218](https://github.com/TanStack/query/blob/main/packages/query-core/src/types.ts#L1218)
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#### Parameters
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##### error
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`TError`
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##### variables
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`TVariables`
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##### onMutateResult
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`TOnMutateResult` | `undefined`
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##### context
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[`MutationFunctionContext`](../type-aliases/MutationFunctionContext.md)
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#### Returns
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`unknown`
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#### Inherited from
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```ts
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MutationOptions.onError
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```
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***
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### onMutate()?
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```ts
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optional onMutate: (variables, context) => TOnMutateResult | Promise<TOnMutateResult>;
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```
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Defined in: [packages/query-core/src/types.ts:1208](https://github.com/TanStack/query/blob/main/packages/query-core/src/types.ts#L1208)
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#### Parameters
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##### variables
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`TVariables`
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##### context
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[`MutationFunctionContext`](../type-aliases/MutationFunctionContext.md)
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#### Returns
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`TOnMutateResult` \| `Promise`\<`TOnMutateResult`\>
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#### Inherited from
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```ts
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MutationOptions.onMutate
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```
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***
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### onSettled()?
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```ts
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optional onSettled: (data, error, variables, onMutateResult, context) => unknown;
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```
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Defined in: [packages/query-core/src/types.ts:1224](https://github.com/TanStack/query/blob/main/packages/query-core/src/types.ts#L1224)
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#### Parameters
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##### data
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`TData` | `undefined`
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##### error
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`TError` | `null`
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##### variables
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`TVariables`
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##### onMutateResult
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`TOnMutateResult` | `undefined`
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##### context
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[`MutationFunctionContext`](../type-aliases/MutationFunctionContext.md)
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#### Returns
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`unknown`
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#### Inherited from
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```ts
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MutationOptions.onSettled
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```
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***
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### onSuccess()?
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```ts
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optional onSuccess: (data, variables, onMutateResult, context) => unknown;
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```
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Defined in: [packages/query-core/src/types.ts:1212](https://github.com/TanStack/query/blob/main/packages/query-core/src/types.ts#L1212)
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#### Parameters
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##### data
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`TData`
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##### variables
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`TVariables`
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##### onMutateResult
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`TOnMutateResult`
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##### context
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[`MutationFunctionContext`](../type-aliases/MutationFunctionContext.md)
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#### Returns
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`unknown`
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#### Inherited from
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```ts
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MutationOptions.onSuccess
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```
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***
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### retry?
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```ts
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optional retry: RetryValue<TError>;
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```
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Defined in: [packages/query-core/src/types.ts:1239](https://github.com/TanStack/query/blob/main/packages/query-core/src/types.ts#L1239)
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If `false`, failed mutations will not retry by default.
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If `true`, failed mutations will retry infinitely.
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If set to an integer number, e.g. 3, failed mutations will retry until the failed mutation count meets that number.
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If set to a function `(failureCount, error) => boolean` failed mutations will retry until the function returns false.
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Defaults to `0`.
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#### Inherited from
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```ts
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MutationOptions.retry
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```
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***
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### retryDelay?
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```ts
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optional retryDelay: RetryDelayValue<TError>;
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```
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Defined in: [packages/query-core/src/types.ts:1246](https://github.com/TanStack/query/blob/main/packages/query-core/src/types.ts#L1246)
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This function receives a `retryAttempt` integer and the actual Error and returns the delay to apply before the
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next attempt in milliseconds.
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Defaults to a function that applies exponential backoff, capped at 30 seconds.
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#### Inherited from
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```ts
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MutationOptions.retryDelay
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```
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***
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### scope?
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```ts
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optional scope: MutationScope;
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```
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Defined in: [packages/query-core/src/types.ts:1264](https://github.com/TanStack/query/blob/main/packages/query-core/src/types.ts#L1264)
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#### Inherited from
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```ts
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MutationOptions.scope
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```
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***
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### throwOnError?
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```ts
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optional throwOnError: boolean | (error) => boolean;
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```
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Defined in: [packages/query-core/src/types.ts:1281](https://github.com/TanStack/query/blob/main/packages/query-core/src/types.ts#L1281)
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Whether errors should be thrown instead of setting the `error` property.
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If set to `true`, all errors will be thrown to the nearest error boundary.
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If set to a function, it will be passed the error and should return a boolean indicating whether to throw the
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error (`true`) or return it as state (`false`).
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Defaults to `false`.
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