Proxy error from backend api to front end react app

Question

I keep getting this error, I have used node & express at the back end and react at the front end

'Proxy error: Could not proxy request /api/profile from localhost:3000 to http://localhost:4321/. [1] See https://nodejs.org/api/errors.html#errors_common_system_errors for more information (ECONNREFUSED).'

Answer 1

Did you add a proxy inside the react package.json? This error usually happens when you dont add the proxy.