conscious-sapphire

What's the best practice to refetch data on select change that triggers a mutate

Hey guys, I have a following situation and I'm getting nowhere with my limited knowledge of react-query. What happens is that currentActionName doesn't get updated in time for actionData to be updated/refetched so that updateBigData.mutate can be invoked with the fresh data (actionData belonging to newActionName) Here's an abbreviated version of my code:

// for example: currentActionName = "write", newActionName = "read"
component = () => {
  const [currentActionName, setCurrentActionName] = useState('');
 
  const {data: actionData} = useGetActionQuery({
    actionName: currentActionName,
    ...
  }); // this successfully returns actionData belonging to "write" action on render

  const handleActionChange = (newActionName) => {
    setCurrentActionName(newActionName); // because of how React works, the currentActionName is still "write" for the purpose of the rest of the block

    updateBigData.mutate({
          newActionData, // PROBLEM HERE: Sends actionData with the old currentActionName ("write"), not refetched actionData that belongs to newActionName ("read")
          ...
    });
  }

  <Select onChange={handleActionChange} value={currentActionName} />
}

// for example: currentActionName = "write", newActionName = "read"
component = () => {
  const [currentActionName, setCurrentActionName] = useState('');
 
  const {data: actionData} = useGetActionQuery({
    actionName: currentActionName,
    ...
  }); // this successfully returns actionData belonging to "write" action on render

  const handleActionChange = (newActionName) => {
    setCurrentActionName(newActionName); // because of how React works, the currentActionName is still "write" for the purpose of the rest of the block

    updateBigData.mutate({
          newActionData, // PROBLEM HERE: Sends actionData with the old currentActionName ("write"), not refetched actionData that belongs to newActionName ("read")
          ...
    });
  }

  <Select onChange={handleActionChange} value={currentActionName} />
}

I hope the code above describes it well, but what my question is, what's the best pattern in this case where I have a query that needs to be refetched inside an event handler so that the rest of the code inside the handler has access to the refetched code.

4 Replies

continuing-cyan•13mo ago

const data = await queryClient.fetchQuery(...)

conscious-sapphireOP•13mo ago

Inside the handler, right? @TkDodo 🔮

continuing-cyan•13mo ago

Yes

conscious-sapphireOP•13mo ago

Thanks!

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What's the best practice to refetch data on select change that triggers a mutate

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