Defined in: packages/query-core/src/types.ts:1460
The raw state stored on a Mutation instance. This is the underlying state that observer results (e.g. MutationObserverResult) are derived from.
MutationObserverBaseResult<TData, TError, TVariables, TOnMutateResult>
TData = unknown
TError = DefaultError
TVariables = void
TOnMutateResult = unknown
| Property | Type | Description | Overrides |
|---|---|---|---|
| context | TOnMutateResult | undefined | The value returned by onMutate, if defined. Passed to onSuccess, onError and onSettled as the mutation's context. | - |
| data | undefined | The last successfully resolved data for the mutation. | MutationObserverBaseResult.data |
| error | TError | The error object for the mutation, if an error was encountered. - Defaults to null. | MutationObserverBaseResult.error |
| failureCount | number | The number of times the mutation function has failed for the current attempt. | - |
| failureReason | TError | null | The reason the current attempt failed, as reported by the retryer. | - |
| isError | true | A boolean variable derived from status. - true if the last mutation attempt resulted in an error. | MutationObserverBaseResult.isError |
| isIdle | false | A boolean variable derived from status. - true if the mutation is in its initial state prior to executing. | MutationObserverBaseResult.isIdle |
| isPaused | boolean | Whether the mutation is currently paused (see network mode), or is waiting for another mutation with the same scope to finish. | - |
| isPending | false | A boolean variable derived from status. - true if the mutation is currently executing. | MutationObserverBaseResult.isPending |
| isSuccess | false | A boolean variable derived from status. - true if the last mutation attempt was successful. | MutationObserverBaseResult.isSuccess |
| mutate | MutateFunction<TData, TError, TVariables, TOnMutateResult> | The mutation function you can call with variables to trigger the mutation and optionally hooks on additional callback options. Param The variables object to pass to the mutationFn. Param This function will fire when the mutation is successful and will be passed the mutation's result. Param This function will fire if the mutation encounters an error and will be passed the error. Param This function will fire when the mutation is either successfully fetched or encounters an error and be passed either the data or error. Remarks - If you make multiple requests, onSuccess will fire only after the latest call you've made. - All the callback functions (onSuccess, onError, onSettled) are void functions, and the returned value will be ignored. | - |
| reset | () => void | A function to clean the mutation internal state (i.e., it resets the mutation to its initial state). | - |
| status | "error" | The status of the mutation. - Will be: - idle initial status prior to the mutation function executing. - pending if the mutation is currently executing. - error if the last mutation attempt resulted in an error. - success if the last mutation attempt was successful. | MutationObserverBaseResult.status |
| submittedAt | number | The timestamp for when the mutation was submitted. | - |
| variables | TVariables | The variables object passed to the mutationFn. | MutationObserverBaseResult.variables |