TanStack
API Reference

MutationCacheConfig

Defined in: packages/query-core/src/mutationCache.ts:26

Global callbacks that fire for every mutation handled by a MutationCache, regardless of which component or observer triggered it. They differ from the defaultOptions provided to a QueryClient in two ways: defaultOptions can be overridden by each mutation, while these callbacks are always called, and onMutate here does not allow returning a result.

If a callback returns a promise, it will be awaited before the mutation continues.

Properties

onError()?

ts
optional onError: (error, variables, onMutateResult, mutation, context) => unknown;

Defined in: packages/query-core/src/mutationCache.ts:28

Called when any mutation in the cache encounters an error.

Parameters

error

Error

variables

unknown

onMutateResult

unknown

mutation

Mutation<unknown, unknown, unknown>

context

MutationFunctionContext

Returns

unknown


onMutate()?

ts
optional onMutate: (variables, mutation, context) => unknown;

Defined in: packages/query-core/src/mutationCache.ts:44

Called before any mutation in the cache executes.

Parameters

variables

unknown

mutation

Mutation<unknown, unknown, unknown>

context

MutationFunctionContext

Returns

unknown


onSettled()?

ts
optional onSettled: (data, error, variables, onMutateResult, mutation, context) => unknown;

Defined in: packages/query-core/src/mutationCache.ts:50

Called when any mutation in the cache is settled, either successfully or with an error.

Parameters

data

unknown

error

Error | null

variables

unknown

onMutateResult

unknown

mutation

Mutation<unknown, unknown, unknown>

context

MutationFunctionContext

Returns

unknown


onSuccess()?

ts
optional onSuccess: (data, variables, onMutateResult, mutation, context) => unknown;

Defined in: packages/query-core/src/mutationCache.ts:36

Called when any mutation in the cache is successful.

Parameters

data

unknown

variables

unknown

onMutateResult

unknown

mutation

Mutation<unknown, unknown, unknown>

context

MutationFunctionContext

Returns

unknown