Handling State Management for Conditional Rendering in a React 18 Staging Environment
I'm stuck trying to I'm trying to configure I'm trying to figure out I'm working on a project and hit a roadblock... Currently developing a new feature that requires conditional rendering based on user roles in our React 18 staging environment. The challenge involves ensuring that the correct components render based on the user's access level, which is fetched from a third-party API. Before diving into the implementation, I explored various approaches to manage state effectively. I initially opted for the Context API to share user roles across components, but encountered issues with performance and re-renders when the role changed. Here’s a snippet demonstrating my initial setup: ```javascript const UserContext = createContext(); const UserProvider = ({ children }) => { const [userRole, setUserRole] = useState('guest'); useEffect(() => { async function fetchUserRole() { const response = await fetch('/api/user/role'); const data = await response.json(); setUserRole(data.role); } fetchUserRole(); }, []); return <UserContext.Provider value={userRole}>{children}</UserContext.Provider>; }; ``` The problem arose when user roles were updated dynamically. I needed a solution that would prevent unnecessary re-renders of components that didn’t rely on user role changes. I then switched to using Redux for better control over state updates. Implementing Redux allowed me to isolate state changes, but I struggled with integrating it into existing components without a complete rewrite. Here’s how I set it up: ```javascript // actions.js export const setUserRole = (role) => ({ type: 'SET_USER_ROLE', payload: role }); // reducer.js const initialState = { role: 'guest' }; const userReducer = (state = initialState, action) => { switch (action.type) { case 'SET_USER_ROLE': return { ...state, role: action.payload }; default: return state; } }; ``` In my components, the role is consumed as follows: ```javascript const UserProfile = () => { const userRole = useSelector((state) => state.user.role); return userRole === 'admin' ? <AdminPanel /> : <UserDashboard />; }; ``` Despite this effort, issues with rendering latency surfaced when the API call to fetch roles took longer than expected. To combat this, I implemented a loading state. Here’s how I modified the provider to handle loading: ```javascript const UserProvider = ({ children }) => { const [userRole, setUserRole] = useState('guest'); const [loading, setLoading] = useState(true); useEffect(() => { async function fetchUserRole() { const response = await fetch('/api/user/role'); const data = await response.json(); setUserRole(data.role); setLoading(false); } fetchUserRole(); }, []); if (loading) return <LoadingSpinner />; return <UserContext.Provider value={userRole}>{children}</UserContext.Provider>; }; ``` Incorporating this loading spinner improved the user experience significantly, but I’m still uncertain if there’s a more performant way to handle the state management here that could prevent unnecessary renders. If anyone has experience with better practices for conditional rendering tied to dynamic fetch requests in React, I’d appreciate your insights. Thanks! I'm working in a Windows 11 environment. What's the correct way to implement this? What am I doing wrong? For context: I'm using Javascript on Ubuntu 22.04. Has anyone dealt with something similar?