CreateMutationResult

type CreateMutationResult<TData, TError, TVariables, TOnMutateResult, TState> = BaseMutationNarrowing<TData, TError, TVariables, TOnMutateResult> & MapToSignals<OmitKeyof<TState, keyof BaseMutationNarrowing, "safely">>;

Defined in: packages/angular-query-experimental/src/types.ts:416

The result of injectMutation. Based on CreateBaseMutationResult, but value fields are exposed as a Signal — read them with mutation.data(), not mutation.data — while function fields (mutate, mutateAsync, reset) are called directly, unchanged. isSuccess/isError/isPending/isIdle are BaseMutationNarrowing type-guard methods rather than plain booleans.

Type Parameters#

TData#

TData = unknown

The type your mutation function resolves to.

TError#

TError = DefaultError

The type of errors your mutation function may throw.

TVariables#

TVariables = unknown

The type of the variable passed to mutate/mutateAsync.

TOnMutateResult#

TOnMutateResult = unknown

The type returned by onMutate, passed to onSuccess/onError/onSettled as their onMutateResult parameter — useful for optimistic-update rollback data.

TState#

TState = CreateStatusBasedMutationResult<CreateBaseMutationResult["status"], TData, TError, TVariables, TOnMutateResult>