Defined in: packages/query-core/src/types.ts:955
QueryObserverBaseResult<TData, TError>
TData = unknown
TError = DefaultError
| Property | Type | Description | Overrides |
|---|---|---|---|
| data | TData | The last successfully resolved data for the query. | QueryObserverBaseResult.data |
| dataUpdatedAt | number | The timestamp for when the query most recently returned the status as "success". | - |
| error | TError | The error object for the query, if an error was thrown. - Defaults to null. | QueryObserverBaseResult.error |
| errorUpdateCount | number | The sum of all errors. | - |
| errorUpdatedAt | number | The timestamp for when the query most recently returned the status as "error". | - |
| failureCount | number | The failure count for the query. - Incremented every time the query fails. - Reset to 0 when the query succeeds. | - |
| failureReason | TError | null | The failure reason for the query retry. - Reset to null when the query succeeds. | - |
| fetchStatus | "fetching" | "paused" | "idle" | The fetch status of the query. - fetching: Is true whenever the queryFn is executing, which includes initial pending as well as background refetch. - paused: The query wanted to fetch, but has been paused. - idle: The query is not fetching. - See Network Mode for more information. | - |
| isEnabled | boolean | true if this observer is enabled, false otherwise. | - |
| isError | true | A derived boolean from the status variable, provided for convenience. - true if the query attempt resulted in an error. | QueryObserverBaseResult.isError |
| isFetched | boolean | Will be true if the query has been fetched. | - |
| isFetchedAfterMount | boolean | Will be true if the query has been fetched after the component mounted. - This property can be used to not show any previously cached data. | - |
| isFetching | boolean | A derived boolean from the fetchStatus variable, provided for convenience. - true whenever the queryFn is executing, which includes initial pending as well as background refetch. | - |
| | boolean | Deprecated isInitialLoading is being deprecated in favor of isLoading and will be removed in the next major version. | - |
| isLoading | false | Is true whenever the first fetch for a query is in-flight. - Is the same as isFetching && isPending. | QueryObserverBaseResult.isLoading |
| isLoadingError | false | Will be true if the query failed while fetching for the first time. | QueryObserverBaseResult.isLoadingError |
| isPaused | boolean | A derived boolean from the fetchStatus variable, provided for convenience. - The query wanted to fetch, but has been paused. | - |
| isPending | false | Will be pending if there's no cached data and no query attempt was finished yet. | QueryObserverBaseResult.isPending |
| isPlaceholderData | false | Will be true if the data shown is the placeholder data. | QueryObserverBaseResult.isPlaceholderData |
| isRefetchError | true | Will be true if the query failed while refetching. | QueryObserverBaseResult.isRefetchError |
| isRefetching | boolean | Is true whenever a background refetch is in-flight, which does not include initial pending. - Is the same as isFetching && !isPending. | - |
| isStale | boolean | Will be true if the data in the cache is invalidated or if the data is older than the given staleTime. | - |
| isSuccess | false | A derived boolean from the status variable, provided for convenience. - true if the query has received a response with no errors and is ready to display its data. | QueryObserverBaseResult.isSuccess |
| refetch | (options?: RefetchOptions) => Promise<QueryObserverResult<TData, TError>> | A function to manually refetch the query. | - |
| status | "error" | The status of the query. - Will be: - pending if there's no cached data and no query attempt was finished yet. - error if the query attempt resulted in an error. - success if the query has received a response with no errors and is ready to display its data. | QueryObserverBaseResult.status |