How do I find out why my React effect fires too often?
Use the React DevTools Profiler to see which components re-render and trigger effects. It helps you spot unnecessary fetches caused by wrong dependency arrays or new references on every render.
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More FAQs in Debugging API Requests in React Using DevTools
Open the browser Network tab, filter by Fetch/XHR, and reproduce the request. Check the status code, inspect the request and response headers, and read the response body for error messages. Add strategic console logs to catch response-shape issues.
It means the URL was not found. You likely have a typo or the endpoint changed. Verify the URL against the latest API documentation and update your code.
It means you are being rate-limited for making too many requests. Cache responses, reduce call frequency, and pause calling the API for a while when you get a 429.
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