React Query Tutorial in Hindi #11 Polling React Query
1Polling is a technique used to regularly fetch data from a server at fixed intervals. React Query supports polling out of the box, allowing you to automatically refetch data at specific time intervals to keep it up to date.
To enable polling in React Query, you can use the refetchInterval option when defining your query. The refetchInterval specifies the time interval, in milliseconds, for how often the query should be automatically refetched.Keep in mind that polling might not be the most efficient method for real-time data updates. It can lead to unnecessary network requests and server load. In some cases, using real-time technologies like WebSockets or server-sent events might be a more appropriate approach for real-time data updates.
If you need more control over the polling behavior, you can also use refetchIntervalInBackground and refetchOnMount options to customize when and how the polling occurs.
useQuery('todos', fetchTodos, {
refetchInterval: 5000, // Polling interval of 5000 milliseconds (5 seconds) by default false
refetchIntervalInBackground: true, // Poll even when the tab is in the background
refetchOnMount: false, // Don't refetch the query on component mount (default is true)
});
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