查询失效
等待查询过期后再次获取并不总是有用的，尤其是在您确切知道由于用户操作而导致查询数据过时的情况下。为此，QueryClient 提供了一个 invalidateQueries 方法，该方法可让您智能地将查询标记为已过期，并可能重新获取它们！
tsx
// Invalidate every query in the cache
queryClient.invalidateQueries()
// Invalidate every query with a key that starts with `todos`
queryClient.invalidateQueries({ queryKey: ['todos'] })
// Invalidate every query in the cache
queryClient.invalidateQueries()
// Invalidate every query with a key that starts with `todos`
queryClient.invalidateQueries({ queryKey: ['todos'] })
注意：虽然其他使用规范化缓存的库会尝试通过命令式或通过模式推断来更新本地查询中的新数据，但 TanStack Query 提供工具来避免维护规范化缓存带来的手动工作，而是提倡 **有针对性的失效、后台重新获取以及最终的原子更新**。
当使用 invalidateQueries 使查询失效时，会发生两件事：
- 它被标记为已过期。此过期状态将覆盖 useQuery 或相关钩子中使用的任何 staleTime 配置。
- 如果查询当前正在通过 useQuery 或相关 hook 渲染，它也将会在后台重新获取
使用 invalidateQueries 进行查询匹配
在使用 invalidateQueries 和 removeQueries（以及其他支持部分查询匹配的 API）等 API 时，您可以通过其前缀匹配多个查询，或者非常精确地匹配一个确切的查询。有关您可以使用哪种类型的过滤器，请参阅 查询过滤器。
在此示例中，我们可以使用 todos 前缀来使任何以 todos 开头的查询键失效。
tsx
import { useQuery, useQueryClient } from '@tanstack/vue-query'
// Get QueryClient from the context
const queryClient = useQueryClient()
queryClient.invalidateQueries({ queryKey: ['todos'] })
// Both queries below will be invalidated
const todoListQuery = useQuery({
queryKey: ['todos'],
queryFn: fetchTodoList,
})
const todoListQuery = useQuery({
queryKey: ['todos', { page: 1 }],
queryFn: fetchTodoList,
})
import { useQuery, useQueryClient } from '@tanstack/vue-query'
// Get QueryClient from the context
const queryClient = useQueryClient()
queryClient.invalidateQueries({ queryKey: ['todos'] })
// Both queries below will be invalidated
const todoListQuery = useQuery({
queryKey: ['todos'],
queryFn: fetchTodoList,
})
const todoListQuery = useQuery({
queryKey: ['todos', { page: 1 }],
queryFn: fetchTodoList,
})
你甚至可以通过向 invalidateQueries 方法传递更具体的查询键来使带有特定变量的查询失效
tsx
queryClient.invalidateQueries({
queryKey: ['todos', { type: 'done' }],
})
// The query below will be invalidated
const todoListQuery = useQuery({
queryKey: ['todos', { type: 'done' }],
queryFn: fetchTodoList,
})
// However, the following query below will NOT be invalidated
const todoListQuery = useQuery({
queryKey: ['todos'],
queryFn: fetchTodoList,
})
queryClient.invalidateQueries({
queryKey: ['todos', { type: 'done' }],
})
// The query below will be invalidated
const todoListQuery = useQuery({
queryKey: ['todos', { type: 'done' }],
queryFn: fetchTodoList,
})
// However, the following query below will NOT be invalidated
const todoListQuery = useQuery({
queryKey: ['todos'],
queryFn: fetchTodoList,
})
invalidateQueries API 非常灵活，因此即使您想 **仅** 使没有更多变量或子键的 todos 查询失效，也可以将 exact: true 选项传递给 invalidateQueries 方法。
tsx
queryClient.invalidateQueries({
queryKey: ['todos'],
exact: true,
})
// The query below will be invalidated
const todoListQuery = useQuery({
queryKey: ['todos'],
queryFn: fetchTodoList,
})
// However, the following query below will NOT be invalidated
const todoListQuery = useQuery({
queryKey: ['todos', { type: 'done' }],
queryFn: fetchTodoList,
})
queryClient.invalidateQueries({
queryKey: ['todos'],
exact: true,
})
// The query below will be invalidated
const todoListQuery = useQuery({
queryKey: ['todos'],
queryFn: fetchTodoList,
})
// However, the following query below will NOT be invalidated
const todoListQuery = useQuery({
queryKey: ['todos', { type: 'done' }],
queryFn: fetchTodoList,
})
如果您发现自己想要 **更多** 的粒度控制，可以将一个谓词函数传递给 invalidateQueries 方法。该函数将接收查询缓存中的每个 Query 实例，并允许您返回 true 或 false 以决定是否要使该查询失效。
tsx
queryClient.invalidateQueries({
predicate: (query) =>
query.queryKey[0] === 'todos' && query.queryKey[1]?.version >= 10,
})
// The query below will be invalidated
const todoListQuery = useQuery({
queryKey: ['todos', { version: 20 }],
queryFn: fetchTodoList,
})
// The query below will be invalidated
const todoListQuery = useQuery({
queryKey: ['todos', { version: 10 }],
queryFn: fetchTodoList,
})
// However, the following query below will NOT be invalidated
const todoListQuery = useQuery({
queryKey: ['todos', { version: 5 }],
queryFn: fetchTodoList,
})
queryClient.invalidateQueries({
predicate: (query) =>
query.queryKey[0] === 'todos' && query.queryKey[1]?.version >= 10,
})
// The query below will be invalidated
const todoListQuery = useQuery({
queryKey: ['todos', { version: 20 }],
queryFn: fetchTodoList,
})
// The query below will be invalidated
const todoListQuery = useQuery({
queryKey: ['todos', { version: 10 }],
queryFn: fetchTodoList,
})
// However, the following query below will NOT be invalidated
const todoListQuery = useQuery({
queryKey: ['todos', { version: 5 }],
queryFn: fetchTodoList,
})
