Using useMutation to make an advanced toggle in React
Blog post from PropelAuth
A React dashboard can provide responsive toggle controls by combining React Query’s `useQuery` and `useMutation` with optimistic cache updates and temporary status feedback. Rather than waiting for a successful mutation and then refetching configuration data, the approach cancels pending queries, saves the previous cached value, immediately merges the requested change into the cache, and rolls back to the saved state if the server request fails; it then invalidates the query after completion to synchronize with the server. A reusable feedback hook manages loading, success, and error indicators, using a timeout to clear success or failure icons after a short interval while handling timer cleanup through an existing `useTimeout` implementation. These pieces are combined into a generic `useAutoUpdatingMutation` hook that performs the optimistic update, displays request status, reverts failed updates, and refetches data afterward, allowing UI controls to update instantly, remain disabled while requests are pending, and accurately reflect success or failure.
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