All files / store listenerMiddleware.ts

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import {createListenerMiddleware} from '@reduxjs/toolkit';
import {api} from '../services/api';
import {logout} from '../features/auth/authSlice';
 
/**
 * Side-effect middleware for cross-slice reactions.
 */
export const listenerMiddleware = createListenerMiddleware();
 
/**
 * Clear all cached RTK Query data whenever a user logs out (FSC-59).
 *
 * The auth slice is persisted, but the API cache is in-memory only. Without
 * this, logging out and logging back in *in the same tab* leaves the previous
 * user's cached query results (e.g. their loans) in the store until something
 * triggers a refetch — which is why a hard refresh "fixed" it. Resetting the
 * cache here guarantees the next user starts from a clean slate.
 *
 * Listening on the `logout` action (rather than dispatching the reset inline at
 * each logout site) also covers the automatic logout in the re-auth wrapper
 * when a token refresh fails.
 */
listenerMiddleware.startListening({
	actionCreator: logout,
	effect: (_action, listenerApi) => {
		listenerApi.dispatch(api.util.resetApiState());
	}
});