hydration/dehydrate

dehydrate creates a frozen representation of a cache that can later be hydrated with Hydrate, useHydrate, or hydrate. This is useful for passing prefetched queries from server to client or persisting queries to localstorage or other persisten locations. It only includes currently successful queries by default.

1 import { dehydrate } from 'react-query/hydration'
2 
3 const dehydratedState = dehydrate(cache, {
4   shouldDehydrate,
5 })

Options

• cache: QueryCache
  • Required
  • The cache that should be dehydrated
• options: DehydrateOptions
  • Optional
  • shouldDehydrate: (query: Query) => boolean
    • This function is called for each query in the cache
    • Return true to include this query in dehydration, or false otherwise
    • Default version only includes successful queries, do shouldDehydrate: () => true to include all queries

Returns

• dehydratedState: DehydratedState
  • This includes everything that is needed to hydrate the cache at a later point
  • You should not rely on the exact format of this response, it is not part of the public API and can change at any time
  • This result is not in serialized form, you need to do that yourself if desired