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Maintain context values between routes in React.js

I'm trying to maintain state values between routes in context. But it gets reset when the route changes.
aackage.json:
"react-router-dom": "^6.8.0",
"react-dom": "^18.2.0",
"react": "^18.2.0",
App.js:
export default const App = () => {
const [loading, setLoading] = useState(false);
const [data, setData] = useState(null);
const getData = async () => {
setLoading(true);
const data = await axios.get("url", {
withCredentials: true,
});
setData(data);
setLoading(false);
};
useEffect(() => {
getData()
console.log("I run on route change");
}, []);
const GlobalContextValue= {
data: data,
loading: loading,
};
return (
<>
<GlobalContextProvider value={GlobalContextValue}>
<BrowserRouter>
<Routes>
<Route index element={<HomePage />} />
<Route path="/:slug" element={<PostPage />} />
{/* <Route path="*" element={<NoPage />} /> */}
</Routes>
</BrowserRouter>
</<GlobalContextProvider />
</>
)
}
Whenever I try to access any route the getData function inside the useEffect calls which inturns resets the data. I have attached a CodeSandbox to replicate the same
I don't know if this problem is related to reactJs or react-router. Thanks in advance

As you don't seem to have any navigation link, I assume you are using the browser search bar, or a normal HTML <a> tag. Well, doing so refreshes the page, so the entire app gets re-created.
Using useNavigate or Link from React Router Dom, doesn't refresh the page, hence your context data remains untouched:
const HomePage = () => {
return (
<>
<h1>Hii Homepage </h1>
<Link to="/1">Go to PostPage</Link>
</>
);
};
const PostPage = () => {
const params = useParams();
return (
<>
<h1>Hii PostPage {params.slug} </h1>
<Link to="/">Go to HomePage</Link>
</>
);
};
export default function App() {
useEffect(() => {
console.log(
"I run on load and route change with browser search bar, not with useNavigate or Link"
);
}, []);
return (
<>
{/* This context wrapping BrowserRouter keeps its value if you navigate with Link or
useNavigate. */}
<GlobalContextProvider value={{ key: "some value" }}>
<BrowserRouter>
<Routes>
<Route index element={<HomePage />} />
<Route path="/:slug" element={<PostPage />} />
{/* <Route path="*" element={<NoPage />} /> */}
</Routes>
</BrowserRouter>
</GlobalContextProvider>
</>
);
}

Can't pass data from one page to another with React-Router-DOM (useHistory, useLocation)

I have a router:
<Switch>
<Route exact path="/">
<CustomPaddingContainer padding="0 0.5em 1.5em">
<TableViewComponent columns={tableAccessors} />
</CustomPaddingContainer>
</Route>
<Route path="/new-objective">
<AddNewObjectiveComponent onSubmit={onSubmitObjective} onCancel={onCancel} />
</Route>
<Route path="/new-kr">
<AddNewKrComponent onSubmit={onSubmitKR} onCancel={onCancel} />
</Route>
<Route path="/okr-details/:id">
<OkrDetailsWithParams />
</Route>
</Switch>
and I want to pass specific data from specific component to one of this Route when specific button will be clicked. to be more precise, I have this component:
const AddOKRButtons: FC<AddOKRButtonsProps> = ({ parentObjectiveId }) => {
const history = useHistory();
const onAddOkrButtonClick = () => {
history.push('/new-objective', { parentObjectiveId: parentObjectiveId });
};
const onAddKrButtonClick = () => {
history.push('/new-kr', { parentObjectiveId: parentObjectiveId });
};
return (
<OkrDetailsChildrenCardsButtonContainerCentered>
<ButtonGroup>
<LinkButton to="/new-objective" appearance="default" onClick={onAddOkrButtonClick}>
Add a new sub-objective
</LinkButton>
<LinkButton to="/new-kr" appearance="default" onClick={onAddKrButtonClick}>
Add a new key-result
</LinkButton>
</ButtonGroup>
</OkrDetailsChildrenCardsButtonContainerCentered>
);
};
Im trying to pass the **parentObjectiveId** which is coming from props to the /new-objective page or /new-kr page in order what button was clicked. After that Im trying to get that data in component where it should be with useLocation hook:
export const AddNewObjectiveComponent: FC<NonNullable<AddNewOKRProps>> = props => {
const location = useLocation();
console.log(location);
return(<div></div>)
}
and unfortunately i got undefined in the state key, where the data is probably should be:

Try to push history route like
history.push({
pathname: '/new-objective',
state: { parentObjectiveId: parentObjectiveId }
});
I hope it will be work for you. Thanks!

ReactRouterDom, AuthRoute returns react render functions are not valid as react child warning

My Router is a simple component containing public and private routes. I have created an AuthRoute referring to the great tutorial from here
So, my Router looks like:
<Router>
<div>
<Navigation />
<Route exact path={ROUTES.LANDING} component={Landing} />
<Route path={ROUTES.SIGN_UP} component={SignUp} />
<Route path={ROUTES.SIGN_UP_SUCCESS} component={SignUpSuccess} />
<AuthenticationRoute path={ROUTES.HOME} component={Home} />
</div>
</Router>
and my AuthenticationRoute looks like this:
export const AuthenticationRoute = ({ component: Component, ...rest }) => {
const [authChecking, setAuthChecking] = useState(true);
const [{ isAuth }, dispatch] = useStateValue();
useEffect(() => {
checkLoggedIn().then(res => {
setAuthChecking(false);
dispatch({
op: 'auth',
type: 'toggleSessionAuth',
toggleSessionAuth: res
});
});
}, [])
if(authChecking)
return null;
if(!isAuth) {
return <Redirect to='/' />;
}
return <Route {...rest} render={(props) => (
<Component {...props} />
)
} />
}
Everything looks fine, however, my console returns such warning:
Warning: Functions are not valid as a React child. This may happen if you return a Component instead of <Component /> from the render. Or maybe you meant to call this function rather than return it.
I have tried different solutions using component/render etc, however, I could not find a solution to this problem and I have no idea what I am doing wrong.
For testing purposes, instead of rendering Component, I tried to render simple <div>test</div> and it worked fine. However, when I am passing a JSX component in props, it returns the warning shown above.
Implementation oh Home Component (Home.js):
export const Home = () => {
const [{ user }, dispatch] = useStateValue();
const { history } = useReactRouter();
const moveTo = path => {
dispatch({
op: 'other',
type: 'setView',
setView: path
});
history.push(path);
}
return (
<div className="pageMenuWrapper">
<h1 className="homeTitle">Hi {() => user ? `, ${user.username}` : ``}.</h1>
<div className="wrapper">
<Tile image={leagueico} alt="text" onClick={() => moveTo(ROUTES.TEST)}/>
<Tile comingSoon />
</div>
</div>
);
}
export default Home;
Could anyone help me solve this little problem?

Rendering two different components with Reactjs

I've 2 different components, and I would like to render them separately. Logic is simple when user is logged in render 1st component, if it's not render default component.
Please review my code, and help me with this, I'm not good at react, so please help me
export default function App(props) {
const Authenticated = props.Authenticated
const RoutingCabinet = (
<React.Fragment>
<Header/>
<Switch>
<Route exact path = '/' component = { () => TempBody} />
<Route exact path = '/new' component = { () => <ResponsiveDrawer />}/>
</Switch>
<Footer/>
</React.Fragment>
);
const RoutingContent = (
<React.Fragment>
<Cabinet />
<Switch>
<Route exact path = '/user.test'component = { () => <div>Element</div> }/>
</Switch>
</React.Fragment>
);
return(
<ThemeProvider theme = {Theme}>
<BrowserRouter>
{
Authenticated
? RoutingCabinet
: RoutingContent
}
</BrowserRouter>
</ThemeProvider>
);
}
Currently I can see only RoutingCabinet
Here is the index.js
ReactDOM.render(<App Authenticated = {false} />, document.getElementById('__body__', '__root__'));

I may be wrong here, but is <Cabinet /> the same as <RoutingCabinet />? If so, it might work ok. The <div>Element</div> will be visible only if url matches user.test. If you are on any other page, this won't be rendered, so it'll look like <RoutingCabinet /> is rendered, while in fact it's <RoutingContent />, it just renders the same output.

ReactJS: Redirecting to a new page within an axios request

I am building a MERN app with a login/register system and I am stuck on being able to redirect a user to a confirmation page which then prompts them to login.
It seems like I could use the useHistory hook in react-router-dom and do history.push() within my axios request which is within my register function:
function handleRegister(e) {
let history = useHistory();
e.preventDefault();
// Grab state
const user = {
username: formState.username,
email: formState.email,
password: formState.password,
password2: formState.password2,
};
// Post request to backend
axios
.post("http://localhost:4000/register", user)
.then((res) => {
// Redirect user to the /thankyouForRegistering page which prompts them to login.
history.push("/thankyouForRegistering");
})
.catch((err) => {
console.log(err);
});
}
But this does not work. I get an error back saying:
React Hook "useHistory" is called in function "handleRegister" which is neither a React function component or a custom React Hook function
Upon further research, it seems that in order to use the useHistory hook, it has to be within <Router>(possibly?) or directly on an onClick handler.
So something like this:
<Button onClick={() => history.push()}></button>
I can't really do that though, because I am not using onClick for my register button, I am using onSubmit and my own register function.
I also looked into using <Redirect />, so I tried making a new state called authorized, set the authorize state to true in my axios request, and then tried this:
<Route
path="/thankyouForRegistering"
render={() => (
authorized ? (
<ThankyouForRegistering />
) : (
<Redirect to="/register" />
))
}
/>
But this is not working either, and it also does not give me any kind of error.
Does anyone know the best way to redirect a user to a new page upon registering/logging in? I've been struggling with this for going on two weeks.
Thanks!!
EDIT: Here is the entire component - it's a bit messy but if anyone needs any explanations please let me know.
import React, { useState } from "react";
import {
BrowserRouter as Router,
Switch,
Route,
Redirect,
useHistory,
} from "react-router-dom";
let navMenu;
function App() {
let history = useHistory();
const [navMenuOpen, setNavMenuOpen] = useState(false);
const [loggedIn, setLoggedIn] = useState(false);
const [errorMsg, setErrorMsg] = useState("");
const [token, setToken] = useState("");
const [authorized, setAuthorized] = useState(false);
const initialState = {
username: "",
email: "",
password: "",
password2: "",
};
const [formState, setFormState] = useState(initialState);
const { username, email, password, password2 } = formState;
const handleChange = (e) => {
setFormState({ ...formState, [e.target.name]: e.target.value });
};
function handleRegister(e) {
//const history = useHistory();
e.preventDefault();
// Grab setState
const user = {
username: formState.username,
email: formState.email,
password: formState.password,
password2: formState.password2,
};
// Post request to backend
axios
.post("http://localhost:4000/register", user)
.then((res) => {
console.log(user);
history.push("/thankyouForRegistering");
setAuthorized(true);
// Redirect user to the /thankyouForRegistering page which prompts them to login.
})
.catch((err) => {
console.log(err);
});
// Once a user has registered, clear the registration form and redirect the user to a page that says thank you for registering, please login.
}
const handleLogin = (e) => {
e.preventDefault();
// Grab setState
const userData = {
email: formState.email,
password: formState.password,
};
axios
.post("http://localhost:4000/login", userData)
.then((res) => {
// Get token from local storage if there is a token
localStorage.setItem("token", res.data.token);
// If there is a token, redirect user to their profile and give them access to
// their recipeList and shoppingList
setLoggedIn(true);
//props.history.push("/profile");
})
.catch((err) => console.log(err));
};
const navMenuToggle = () => {
console.log("toggle");
setNavMenuOpen(!navMenuOpen);
};
const navMenuClose = () => {
setNavMenuOpen(false);
};
const logoutFromNavMenu = () => {
setLoggedIn(false);
navMenuClose();
};
return (
<Router>
<div>
<Navbar
loggedIn={loggedIn}
navMenuToggle={navMenuToggle}
/>
<NavMenu
loggedIn={loggedIn}
show={navMenuOpen}
navMenuClose={navMenuClose}
logoutFromNavMenu={logoutFromNavMenu}
/>
<Switch>
<Route
path="/login"
render={(props) => (
<Login
handleLogin={handleLogin}
handleChange={handleChange}
email={email}
password={password}
errorMsg={errorMsg}
/>
)}
/>
<Route
path="/register"
render={(props) => (
<Register
handleRegister={handleRegister}
handleChange={handleChange}
email={email}
username={username}
password={password}
password2={password2}
errorMsg={errorMsg}
/>
)}
/>
<Route
path="/profile"
render={() => (loggedIn ? <Profile /> : <Redirect to="/login" />)}
/>
<Route
path="/thankyouForRegistering"
render={() =>
authorized ? (
<ThankyouForRegistering />
) : (
<Redirect to="/register" />
)
}
/>
<Route
path="/recipes"
render={(props) =>
loggedIn ? <RecipeBook /> : <Redirect to="/login" />
}
/>
<Route
path="/list"
render={(props) =>
loggedIn ? <ShoppingList /> : <Redirect to="/login" />
}
/>
<Route path="/about" component={About} />
<Route path="/contact" component={Contact} />
<Route
path="/accountSettings"
render={(props) =>
loggedIn ? <AccountSettings /> : <Redirect to="/login" />
}
/>
<Route
exact
path="/"
component={() => <Home isLoggedIn={loggedIn} />}
/>
</Switch>
</div>
</Router>
);
}
export default App;

I figured out what the problem was. It wasn't enough to be using useHistory, I had to be using withRouter to get access to the history prop.
So I imported withRouter to my App component:
import { withRouter } from 'react-router-dom';
Then added this at the very bottom of the page, right below the App function:
const AppWithRouter = withRouter(App);
export default AppWithRouter;
So the App now must be exported as an argument of withRouter to get access to the history prop (as well as location and params I think?)
But this still wasn't enough. It was giving me an error saying that withRouter can only be used within <Router />(or <BrowserRouter />, whichever one you are using). So I wrapped my main <App /> in index.js with <BrowserRouter />
ReactDOM.render(
<BrowserRouter>
<App />
</BrowserRouter>,
document.getElementById("root")
);
And imported it of course.
This still wasn't enough, though. After adding
history.push("/thankYouForRegistering);
to my axios request, it added the route to the URL, but it did not re render the view. It was still stuck on the register page. Then I realized I had <BrowserRouter /> in two different places now. In my App component, I still had it wrapped around all of my routes, so after removing that and just returning a div with <Switch /> wrapped around all of my routes, that made it work like expected.
I hope this helps somebody who is facing the same issue!