here is my protectedroute component
am using react-router-dom v6 and accessing the token from localStorage
and either ways user is always returning undefined
import { Outlet, Navigate} from "react-router-dom";
import axios from "axios";
const ProtectedRoute = () => {
const userAuth = () => {
axios.get("http://localhost:5000/isUserAuth", {
headers: {
"x-access-token": localStorage.getItem("token")
}}).then((response) => {
console.log(response.data)
if(response.data.auth) {
console.log(true)
return true;
} else {
console.log(false)
return false;
}
})
}
let auth = userAuth()
console.log("auth",auth)
return (
auth? <Outlet/> : <Navigate to="/"/>
)
}
export default ProtectedRoute
my app.js
function App() {
return (
<BrowserRouter>
<ToastContainer position='top-center'/>
<Routes>
<Route element={<ProtectedRoutes/>}>
<Route exact path='/home'
element={< Home />}/>
<Route exact path='/add'
element={< AddCust />} />
<Route exact path='/update/:id'
element={< AddCust />} />
<Route exact path='/view/:id'
element={< View />} />
<Route exact path='/table'
element={< Table />} />
<Route exact path='/edit-order/:id'
element={< Table />} />
<Route exact path='/orders'
element={< Orders />} />
</Route>
<Route exact path='/' element={< Login />} />
</Routes>
</BrowserRouter>
);
}
export default App;
this is what is consoled logged
enter image description here
which is weired whether a token exists or not auth is always undefined
Nothing is actually returned from the userAuth function, so auth is undefined. While you could return the axios Promise object, this will make userAuth an asynchronous function and not usable as a ternary condition to conditionally render the Outlet component or redirect.
A solution then is to convert auth to a React state, updated in the GET request flow, and conditionally render null or a loading indicator until the auth status resolves.
Example:
const ProtectedRoute = () => {
const { pathname } = useLocation();
const [auth, setAuth] = React.useState(); // initially undefined
React.useEffect(() => {
const checkAuth = async () => {
try {
const response = await axios.get(
"http://localhost:5000/isUserAuth",
{
headers: {
"x-access-token": localStorage.getItem("token")
},
}
);
setAuth(!!response.data.auth);
} catch(error) {
// handle error, log, etc...
setAuth(false);
}
};
checkAuth();
}, [pathname]); // trigger auth check on route change
if (auth === undefined) {
return null; // loading indicator/spinner/etc
}
return auth
? <Outlet/>
: <Navigate to="/" replace state={{ from: pathname }} />;
};
I am new to the react js. I am using the following way for the purpose of the react route,
In the main component
render() {
return (
<div>
<BrowserRouter>
<div>
<Switch>
<PrivateRoute exact path="/" component={ LandingScreen } />
<PrivateRoute exact path="/QuizSetupMain" component={QuizSetupMain} />
<Route exact path="/login" component={LoginComponent} />
</Switch>
</div>
</BrowserRouter>
</div>
)
privateRoute ->
import React from 'react';
import { Route, Redirect, withRouter } from 'react-router';
import { connect } from 'react-redux';
import Loading from '../Loader/Loading';
const PrivateRoute = ({ component: Component, hasUserLogIn, ...rest }) => {
return <Route
{...rest}
render={
props => {
return hasUserLogIn ?
(
isFetching ? <Loading /> :
<Component {...props} />
)
:
(
<Redirect
to={{
pathname: "/login",
state: { from: props.location }
}}
/>
)
}
}
/>
};
function mapStateToProps(state) {
return {
hasUserLogIn: state.LoginReducer.hasUserLogIn,
isFetching: state.LoginReducer.isFetching
}
}
Here
after success of login,
case LOGIN_SUCCESS:
console.log("going in LOGIN_SUCCESS");
return {
...state,
hasUserLogIn: true,
response: action.data,
error: false,
isFetching: true,
loginRequest: false
}
this state will return, so here if you see isFetching is a property that I am using the privateRoutes.js , then also it does not call that loader .
export default connect(mapStateToProps, null)(PrivateRoute);
So, here What I want to do is that, when a user is not logged in the redirected user to the login page. after that, it should be redirected to the / home page. so, I am doing that from,
export function sendUserJd(data, dispatch) {
dispatch(setFlag());
history.push('/');
return {
type: FETCHING_JOBDESCRIPTION_SUCCESS,
data: data,
}
}
So, but still, it is not rendering the landing screen and also not going in the private route after login. can any one tell me why is this happening? Thanks.
Since you are using custom history object in the action to change Route, you need to use a Router with a custom history object that you use in the action creator.
import { history } from 'path/to/history';
<Router history={history}>
<div>
<Switch>
<PrivateRoute exact path="/" component={ LandingScreen } />
<PrivateRoute exact path="/QuizSetupMain" component={QuizSetupMain} />
<Route exact path="/login" component={LoginComponent} />
</Switch>
</div>
</Router>
As per the loading condition, you would write it like
const PrivateRoute = ({ component: Component, isFetching, hasUserLogIn, path, ...rest }) => {
if(isFetching){
return <Loading />
}
return hasUserLogIn ?
(
<Route
{...rest}
path={path}
component={Component}
/>
)
:
(
<Redirect
to={{
pathname: "/login",
state: { from: path }
}}
/>
)
};
I am a beginner in React.js and I am using Firebase & React Router. I have set up a separate Auth.js file (exporting a boolean) where I store the authenticated state of a user and it works as intended but the problem is that when I login/register or logout the content doesn't change/re-render. Logging the exported boolean in other files I see that it doesn't change for some reason.
Auth
import fire from './Fire';
var isAuth = false;
fire.auth().onAuthStateChanged(
function (user) {
if (user) {
isAuth = true;
console.log('Authed');
} else {
isAuth = false
console.log('Not Auth');
}
}
);
export default isAuth;
Then there's Router.js
import React, { Component } from 'react';
import { Route, Switch, Redirect } from "react-router-dom";
import Login from './components/common/Navbar/Login/Login';
import Register from './components/common/Navbar/Register/Register';
import Home from './components/common/Home/Home';
import isAuth from './config/isAuth';
import All from './components/All/All';
import PrivateRoute from './config/PrivateRoute';
class Router extends Component {
constructor(props) {
super(props);
this.state = ({
isAuth: isAuth
});
}
componentWillMount() {
this.setState = ({
isAuth: isAuth
});
}
render() {
console.log('Router.js => ' + this.state.isAuth)
return (
<div>
<PrivateRoute exact path='/' component={Home} />
<PrivateRoute exact path='/register' component={
this.state.isAuth ? Home : Register} />
<PrivateRoute exact path='/all' component={All} />
<Route exact path='/login' component={ this.state.isAuth ? Home : Login} />
</div>
);
}
}
export default Router;
And finally PrivateRoute component which I took from someone's code on the internet.
import React from 'react';
import { Redirect, Route } from "react-router-dom";
const PrivateRoute = ({ component: Component, ...rest }, isLogged) => (
<Route {...rest} render={(props) => (
isLogged
? (<Component {...props} /> )
: (<Redirect to={{ pathname: '/login' }} />)
)} />
)
export default PrivateRoute;
To fix this issue I changed a few things in the way you handled auth state change. See changes below:
Router.js
...
class Router extends Component {
constructor(props) {
super(props);
this.state = {
isAuth: false
};
}
componentDidMount() {
fire.auth().onAuthStateChanged(user => {
console.log("Router user", user);
if (user) {
localStorage.setItem("user", user); // Note the use of localStorage
this.setState({ isAuth: true });
}
});
}
render() {
return (
<div>
<Switch>
<PrivateRoute
exact
path="/"
component={Home}
isLogged={this.state.isAuth}
/>
<PrivateRoute
exact
path="/register"
component={this.state.isAuth ? Home : Register}
isLogged={this.state.isAuth}
/>
<PrivateRoute
exact
path="/all"
component={All}
isLogged={this.state.isAuth}
/>
<Route
exact
path="/login"
component={this.state.isAuth ? Home : Login}
/>
</Switch>
</div>
);
}
}
export default Router;
Take note of the isLogged prop I passed to the PrivateRoute components, this ensures that the current auth state is accessible from within PrivateRoute component. I also used the localStorage to persist the auth state.
PrivateRoute.js
...
const PrivateRoute = ({ component: Component, ...rest }, isLogged) => (
<Route
{...rest}
render={props =>
rest.isLogged ? (
<Component {...props} />
) : (
<Redirect to={{ pathname: "/login" }} />
)
}
/>
);
export default PrivateRoute;
You would notice that I am using rest.isLogged instead of the isLogged argument which for some reason is always undefined. rest.isLogged was passed into this component from the Router component.
Home.js
class Home extends Component {
constructor(props) {
super(props);
this.state = {
isAuth: localStorage.getItem("user") || false
};
console.log("Home.js => " + this.state.isAuth);
}
render() {
return (
<div>
{/* If logged => Welcome ; else => Login */}
{this.state.isAuth ? <Welcome /> : <Login />}
</div>
);
}
}
export default Home;
In Home component, I removed the isAuth import as it was not working, then I set state's isAuth to get the user from localStorage.
From here on out, I'm sure you can figure the rest of your app out. Peace.
Click on the button below to view on codesandbox
I think the way you do will not change the isAuth state. Can you try this solution? I hope it will work
class Router extends Component {
constructor(props) {
super(props);
this.state = ({
isAuth: false
});
}
componentDidMount() {
fire.auth().onAuthStateChanged((user) => {
if (user) {
console.log(user);
this.setState({ isAuth: true });
} else {
this.setState({ isAuth: false });
}
});
}
render() {
console.log('Router.js => ' + this.state.isAuth)
return (
<div>
<PrivateRoute exact path='/' component={Home}/>
<PrivateRoute exact path='/register' component={
this.state.isAuth ? Home : Register} />
<PrivateRoute exact path='/all' component={All}/>
<Route exact path='/login' component={ this.state.isAuth ? Home : Login} />
</div>
);
}
}
I was trying to implement authenticated routes but found that React Router 4 now prevents this from working:
<Route exact path="/" component={Index} />
<Route path="/auth" component={UnauthenticatedWrapper}>
<Route path="/auth/login" component={LoginBotBot} />
</Route>
<Route path="/domains" component={AuthenticatedWrapper}>
<Route exact path="/domains" component={DomainsIndex} />
</Route>
The error is:
Warning: You should not use <Route component> and <Route children> in the same route; <Route children> will be ignored
In that case, what's the correct way to implement this?
It appears in react-router (v4) docs, it suggests something like
<Router>
<div>
<AuthButton/>
<ul>
<li><Link to="/public">Public Page</Link></li>
<li><Link to="/protected">Protected Page</Link></li>
</ul>
<Route path="/public" component={Public}/>
<Route path="/login" component={Login}/>
<PrivateRoute path="/protected" component={Protected}/>
</div>
</Router>
But is it possible to achieve this while grouping a bunch of routes together?
After some research, I came up with this:
import React, {PropTypes} from "react"
import {Route} from "react-router-dom"
export default class AuthenticatedRoute extends React.Component {
render() {
if (!this.props.isLoggedIn) {
this.props.redirectToLogin()
return null
}
return <Route {...this.props} />
}
}
AuthenticatedRoute.propTypes = {
isLoggedIn: PropTypes.bool.isRequired,
component: PropTypes.element,
redirectToLogin: PropTypes.func.isRequired
}
Is it correct to dispatch an action in render()? It feels wrong. It doesn't really seem correct with componentDidMount or some other hook, either.
You're going to want to use the Redirect component. There's a few different approaches to this problem. Here's one I like, have a PrivateRoute component that takes in an authed prop and then renders based on that props.
function PrivateRoute ({component: Component, authed, ...rest}) {
return (
<Route
{...rest}
render={(props) => authed === true
? <Component {...props} />
: <Redirect to={{pathname: '/login', state: {from: props.location}}} />}
/>
)
}
Now your Routes can look something like this
<Route path='/' exact component={Home} />
<Route path='/login' component={Login} />
<Route path='/register' component={Register} />
<PrivateRoute authed={this.state.authed} path='/dashboard' component={Dashboard} />
If you're still confused, I wrote this post that may help -
Protected routes and authentication with React Router v4
All answers are outdated
In 2022 the render prop of the Route component is for legacy use according to the react-router-dom documentation is not even working anymore in V5 and in V6 was removed.
This works instead:
const RequireAuth: FC<{ children: React.ReactElement }> = ({ children }) => {
const userIsLogged = useLoginStatus(); // Your hook to get login status
if (!userIsLogged) {
return <LoginPage />;
}
return children;
};
Usage:
/* A route that doesn't require login */
<Route
path="sign-up"
element={
<SignUpPage />
}
/>
/* A route that requires login */
<Route
path="dashboard"
element={
<RequireAuth>
<DashboardPage />
</RequireAuth>
}
/>
EDIT: I updated the code example to v6 of React Router
Tnx Tyler McGinnis for solution.
I make my idea from Tyler McGinnis idea.
const DecisionRoute = ({ trueComponent, falseComponent, decisionFunc, ...rest }) => {
return (
<Route
{...rest}
render={
decisionFunc()
? trueComponent
: falseComponent
}
/>
)
}
You can implement that like this
<DecisionRoute path="/signin" exact={true}
trueComponent={redirectStart}
falseComponent={SignInPage}
decisionFunc={isAuth}
/>
decisionFunc just a function that return true or false
const redirectStart = props => <Redirect to="/orders" />
(Using Redux for state management)
If user try to access any url, first i am going to check if access token available, if not redirect to login page,
Once user logs in using login page, we do store that in localstorage as well as in our redux state. (localstorage or cookies..we keep this topic out of context for now).
since redux state as updated and privateroutes will be rerendered. now we do have access token so we gonna redirect to home page.
Store the decoded authorization payload data as well in redux state and pass it to react context. (We dont have to use context but to access authorization in any of our nested child components it makes easy to access from context instead connecting each and every child component to redux)..
All the routes that don't need special roles can be accessed directly after login.. If it need role like admin (we made a protected route which checks whether he had desired role if not redirects to unauthorized component)
similarly in any of your component if you have to disable button or something based on role.
simply you can do in this way
const authorization = useContext(AuthContext);
const [hasAdminRole] = checkAuth({authorization, roleType:"admin"});
const [hasLeadRole] = checkAuth({authorization, roleType:"lead"});
<Button disable={!hasAdminRole} />Admin can access</Button>
<Button disable={!hasLeadRole || !hasAdminRole} />admin or lead can access</Button>
So what if user try to insert dummy token in localstorage. As we do have access token, we will redirect to home component. My home component will make rest call to grab data, since jwt token was dummy, rest call will return unauthorized user. So i do call logout (which will clear localstorage and redirect to login page again).
If home page has static data and not making any api calls(then you should have token-verify api call in the backend so that you can check if token is REAL before loading home page)
index.js
import React from 'react';
import ReactDOM from 'react-dom';
import { Router, Route, Switch } from 'react-router-dom';
import history from './utils/history';
import Store from './statemanagement/store/configureStore';
import Privateroutes from './Privateroutes';
import Logout from './components/auth/Logout';
ReactDOM.render(
<Store>
<Router history={history}>
<Switch>
<Route path="/logout" exact component={Logout} />
<Route path="/" exact component={Privateroutes} />
<Route path="/:someParam" component={Privateroutes} />
</Switch>
</Router>
</Store>,
document.querySelector('#root')
);
History.js
import { createBrowserHistory as history } from 'history';
export default history({});
Privateroutes.js
import React, { Fragment, useContext } from 'react';
import { Route, Switch, Redirect } from 'react-router-dom';
import { connect } from 'react-redux';
import { AuthContext, checkAuth } from './checkAuth';
import App from './components/App';
import Home from './components/home';
import Admin from './components/admin';
import Login from './components/auth/Login';
import Unauthorized from './components/Unauthorized ';
import Notfound from './components/404';
const ProtectedRoute = ({ component: Component, roleType, ...rest })=> {
const authorization = useContext(AuthContext);
const [hasRequiredRole] = checkAuth({authorization, roleType});
return (
<Route
{...rest}
render={props => hasRequiredRole ?
<Component {...props} /> :
<Unauthorized {...props} /> }
/>)};
const Privateroutes = props => {
const { accessToken, authorization } = props.authData;
if (accessToken) {
return (
<Fragment>
<AuthContext.Provider value={authorization}>
<App>
<Switch>
<Route exact path="/" component={Home} />
<Route path="/login" render={() => <Redirect to="/" />} />
<Route exact path="/home" component={Home} />
<ProtectedRoute
exact
path="/admin"
component={Admin}
roleType="admin"
/>
<Route path="/404" component={Notfound} />
<Route path="*" render={() => <Redirect to="/404" />} />
</Switch>
</App>
</AuthContext.Provider>
</Fragment>
);
} else {
return (
<Fragment>
<Route exact path="/login" component={Login} />
<Route exact path="*" render={() => <Redirect to="/login" />} />
</Fragment>
);
}
};
// my user reducer sample
// const accessToken = localStorage.getItem('token')
// ? JSON.parse(localStorage.getItem('token')).accessToken
// : false;
// const initialState = {
// accessToken: accessToken ? accessToken : null,
// authorization: accessToken
// ? jwtDecode(JSON.parse(localStorage.getItem('token')).accessToken)
// .authorization
// : null
// };
// export default function(state = initialState, action) {
// switch (action.type) {
// case actionTypes.FETCH_LOGIN_SUCCESS:
// let token = {
// accessToken: action.payload.token
// };
// localStorage.setItem('token', JSON.stringify(token))
// return {
// ...state,
// accessToken: action.payload.token,
// authorization: jwtDecode(action.payload.token).authorization
// };
// default:
// return state;
// }
// }
const mapStateToProps = state => {
const { authData } = state.user;
return {
authData: authData
};
};
export default connect(mapStateToProps)(Privateroutes);
checkAuth.js
import React from 'react';
export const AuthContext = React.createContext();
export const checkAuth = ({ authorization, roleType }) => {
let hasRequiredRole = false;
if (authorization.roles ) {
let roles = authorization.roles.map(item =>
item.toLowerCase()
);
hasRequiredRole = roles.includes(roleType);
}
return [hasRequiredRole];
};
DECODED JWT TOKEN SAMPLE
{
"authorization": {
"roles": [
"admin",
"operator"
]
},
"exp": 1591733170,
"user_id": 1,
"orig_iat": 1591646770,
"email": "hemanthvrm#stackoverflow",
"username": "hemanthvrm"
}
const Root = ({ session }) => {
const isLoggedIn = session && session.getCurrentUser
return (
<Router>
{!isLoggedIn ? (
<Switch>
<Route path="/signin" component={<Signin />} />
<Redirect to="/signin" />
</Switch>
) : (
<Switch>
<Route path="/" exact component={Home} />
<Route path="/about" component={About} />
<Route path="/something-else" component={SomethingElse} />
<Redirect to="/" />
</Switch>
)}
</Router>
)
}
install react-router-dom
then create two components one for valid users and other for invalid users.
try this on app.js
import React from 'react';
import {
BrowserRouter as Router,
Route,
Link,
Switch,
Redirect
} from 'react-router-dom';
import ValidUser from "./pages/validUser/validUser";
import InValidUser from "./pages/invalidUser/invalidUser";
const loggedin = false;
class App extends React.Component {
render() {
return (
<Router>
<div>
<Route exact path="/" render={() =>(
loggedin ? ( <Route component={ValidUser} />)
: (<Route component={InValidUser} />)
)} />
</div>
</Router>
)
}
}
export default App;
Based on the answer of #Tyler McGinnis. I made a different approach using ES6 syntax and nested routes with wrapped components:
import React, { cloneElement, Children } from 'react'
import { Route, Redirect } from 'react-router-dom'
const PrivateRoute = ({ children, authed, ...rest }) =>
<Route
{...rest}
render={(props) => authed ?
<div>
{Children.map(children, child => cloneElement(child, { ...child.props }))}
</div>
:
<Redirect to={{ pathname: '/', state: { from: props.location } }} />}
/>
export default PrivateRoute
And using it:
<BrowserRouter>
<div>
<PrivateRoute path='/home' authed={auth}>
<Navigation>
<Route component={Home} path="/home" />
</Navigation>
</PrivateRoute>
<Route exact path='/' component={PublicHomePage} />
</div>
</BrowserRouter>
Heres how I solved it with React and Typescript. Hope it helps !
import * as React from 'react';
import { FC } from 'react';
import { Route, RouteComponentProps, RouteProps, Redirect } from 'react-router';
const PrivateRoute: FC<RouteProps> = ({ component: Component, ...rest }) => {
if (!Component) {
return null;
}
const isLoggedIn = true; // Add your provider here
return (
<Route
{...rest}
render={(props: RouteComponentProps<{}>) => isLoggedIn ? (<Component {...props} />) : (<Redirect to={{ pathname: '/', state: { from: props.location } }} />)}
/>
);
};
export default PrivateRoute;
<PrivateRoute component={SignIn} path="/signin" />
I know it's been a while but I've been working on an npm package for private and public routes.
Here's how to make a private route:
<PrivateRoute exact path="/private" authed={true} redirectTo="/login" component={Title} text="This is a private route"/>
And you can also make Public routes that only unauthed user can access
<PublicRoute exact path="/public" authed={false} redirectTo="/admin" component={Title} text="This route is for unauthed users"/>
I hope it helps!
I implemented using-
<Route path='/dashboard' render={() => (
this.state.user.isLoggedIn ?
(<Dashboard authenticate={this.authenticate} user={this.state.user} />) :
(<Redirect to="/login" />)
)} />
authenticate props will be passed to components e.g. signup using which user state can be changed. Complete AppRoutes-
import React from 'react';
import { Switch, Route } from 'react-router-dom';
import { Redirect } from 'react-router';
import Home from '../pages/home';
import Login from '../pages/login';
import Signup from '../pages/signup';
import Dashboard from '../pages/dashboard';
import { config } from '../utils/Config';
export default class AppRoutes extends React.Component {
constructor(props) {
super(props);
// initially assuming that user is logged out
let user = {
isLoggedIn: false
}
// if user is logged in, his details can be found from local storage
try {
let userJsonString = localStorage.getItem(config.localStorageKey);
if (userJsonString) {
user = JSON.parse(userJsonString);
}
} catch (exception) {
}
// updating the state
this.state = {
user: user
};
this.authenticate = this.authenticate.bind(this);
}
// this function is called on login/logout
authenticate(user) {
this.setState({
user: user
});
// updating user's details
localStorage.setItem(config.localStorageKey, JSON.stringify(user));
}
render() {
return (
<Switch>
<Route exact path='/' component={Home} />
<Route exact path='/login' render={() => <Login authenticate={this.authenticate} />} />
<Route exact path='/signup' render={() => <Signup authenticate={this.authenticate} />} />
<Route path='/dashboard' render={() => (
this.state.user.isLoggedIn ?
(<Dashboard authenticate={this.authenticate} user={this.state.user} />) :
(<Redirect to="/login" />)
)} />
</Switch>
);
}
}
Check the complete project here: https://github.com/varunon9/hello-react
The accepted answer is good, but it does NOT solve the problem when we need our component to reflect changes in URL.
Say, your component's code is something like:
export const Customer = (props) => {
const history = useHistory();
...
}
And you change URL:
const handleGoToPrev = () => {
history.push(`/app/customer/${prevId}`);
}
The component will not reload!
A better solution:
import React from 'react';
import { Redirect, Route } from 'react-router-dom';
import store from '../store/store';
export const PrivateRoute = ({ component: Component, ...rest }) => {
let isLoggedIn = !!store.getState().data.user;
return (
<Route {...rest} render={props => isLoggedIn
? (
<Component key={props.match.params.id || 'empty'} {...props} />
) : (
<Redirect to={{ pathname: '/login', state: { from: props.location } }} />
)
} />
)
}
Usage:
<PrivateRoute exact path="/app/customer/:id" component={Customer} />
I love #fermmm answer but in his implementation the rendered component will not match with the url if the user is not logged in. Thus it might be confusing for a visitor.
So, instead of
return (
<Route {...props}>{userIsLogged ? props.children : <LoginPage/>}</Route>
);
I would suggest using:
return (
<Route {...props}>
{userIsLogged ? (
props.children
) : (
<Redirect
to={{
pathname: "/login",
state: { from: location },
}}
/>
)}
</Route>
);
In this case you will still get the component rendered but "/login" in the URL instead of the previous route segment.
It seems your hesitation is in creating your own component and then dispatching in the render method? Well you can avoid both by just using the render method of the <Route> component. No need to create a <AuthenticatedRoute> component unless you really want to. It can be as simple as below. Note the {...routeProps} spread making sure you continue to send the properties of the <Route> component down to the child component (<MyComponent> in this case).
<Route path='/someprivatepath' render={routeProps => {
if (!this.props.isLoggedIn) {
this.props.redirectToLogin()
return null
}
return <MyComponent {...routeProps} anotherProp={somevalue} />
} />
See the React Router V4 render documentation
If you did want to create a dedicated component, then it looks like you are on the right track. Since React Router V4 is purely declarative routing (it says so right in the description) I do not think you will get away with putting your redirect code outside of the normal component lifecycle. Looking at the code for React Router itself, they perform the redirect in either componentWillMount or componentDidMount depending on whether or not it is server side rendering. Here is the code below, which is pretty simple and might help you feel more comfortable with where to put your redirect logic.
import React, { PropTypes } from 'react'
/**
* The public API for updating the location programatically
* with a component.
*/
class Redirect extends React.Component {
static propTypes = {
push: PropTypes.bool,
from: PropTypes.string,
to: PropTypes.oneOfType([
PropTypes.string,
PropTypes.object
])
}
static defaultProps = {
push: false
}
static contextTypes = {
router: PropTypes.shape({
history: PropTypes.shape({
push: PropTypes.func.isRequired,
replace: PropTypes.func.isRequired
}).isRequired,
staticContext: PropTypes.object
}).isRequired
}
isStatic() {
return this.context.router && this.context.router.staticContext
}
componentWillMount() {
if (this.isStatic())
this.perform()
}
componentDidMount() {
if (!this.isStatic())
this.perform()
}
perform() {
const { history } = this.context.router
const { push, to } = this.props
if (push) {
history.push(to)
} else {
history.replace(to)
}
}
render() {
return null
}
}
export default Redirect
My Previous answer is not scalable. Here is what I think is good approach-
Your Routes-
<Switch>
<Route
exact path="/"
component={matchStateToProps(InitialAppState, {
routeOpen: true // no auth is needed to access this route
})} />
<Route
exact path="/profile"
component={matchStateToProps(Profile, {
routeOpen: false // can set it false or just omit this key
})} />
<Route
exact path="/login"
component={matchStateToProps(Login, {
routeOpen: true
})} />
<Route
exact path="/forgot-password"
component={matchStateToProps(ForgotPassword, {
routeOpen: true
})} />
<Route
exact path="/dashboard"
component={matchStateToProps(DashBoard)} />
</Switch>
Idea is to use a wrapper in component props which would return original component if no auth is required or already authenticated otherwise would return default component e.g. Login.
const matchStateToProps = function(Component, defaultProps) {
return (props) => {
let authRequired = true;
if (defaultProps && defaultProps.routeOpen) {
authRequired = false;
}
if (authRequired) {
// check if loginState key exists in localStorage (Your auth logic goes here)
if (window.localStorage.getItem(STORAGE_KEYS.LOGIN_STATE)) {
return <Component { ...defaultProps } />; // authenticated, good to go
} else {
return <InitialAppState { ...defaultProps } />; // not authenticated
}
}
return <Component { ...defaultProps } />; // no auth is required
};
};
Here is the simple clean protected route
const ProtectedRoute
= ({ isAllowed, ...props }) =>
isAllowed
? <Route {...props}/>
: <Redirect to="/authentificate"/>;
const _App = ({ lastTab, isTokenVerified })=>
<Switch>
<Route exact path="/authentificate" component={Login}/>
<ProtectedRoute
isAllowed={isTokenVerified}
exact
path="/secrets"
component={Secrets}/>
<ProtectedRoute
isAllowed={isTokenVerified}
exact
path="/polices"
component={Polices}/>
<ProtectedRoute
isAllowed={isTokenVerified}
exact
path="/grants" component={Grants}/>
<Redirect from="/" to={lastTab}/>
</Switch>
isTokenVerified is a method call to check the authorization token basically it returns boolean.
This is just a basic approach for beginners not for professional redux developers
import React, { useState, useEffect } from "react";
import {
Route,
BrowserRouter as Router,
Switch,
Redirect,
} from "react-router-dom";
import Home from "./components/Home";
import Dashboard from "./components/Dashboard";
import Login from "./components/Login";
function App() {
const [isAuth, setAuth] = useState(false);
const checkAuth = () => {
// Your auth logic here
setAuth(true);
};
useEffect(() => {
checkAuth();
});
return (
<Router>
<Switch>
<Route
path="/user/dashboard"
render={(props) =>
isAuth ? <Dashboard {...props} /> : <Redirect to="/" />
}
/>
<Route path="/login" component={Login} />
<Route path="/" component={Home} />
</Switch>
</Router>
);
}
Here is my own approach
const RedirectionUnit = () => {
const [user] = useContext(AuthContext);
const pathname = useLocation().pathname;
let redirectTo;
if (user === null) redirectTo = "login";
else if (pathname === "/")
if (user.type === "supervisor" ) redirectTo = "all-parteners";
else if (user.type === "manager" ) redirectTo = "all-employees";
else if (user.type === "employee" ) redirectTo = "unfinished-tasks";
if (redirectTo && '/' + redirectTo !== pathname)
return <Redirect to={redirectTo} />;
return null;
};
const NavigationRoutes = () => {
return (
<>
<Route component={RedirectionUnit} />
{/* prettier-ignore */}
<Switch>
<Route exact path="/login" component={Login} />
<Route exact path="/logout" component={Logout} />
<Route exact path="/new-parteners" component={NewParteners} />
<Route exact path="/all-parteners" component={AllParteners} />
<Route exact path="/new-employees" component={NewEmployees} />
<Route exact path="/all-employees" component={AllEmployees} />
<Route exact path="/unfinished-tasks" component={UnfinishedTasks} />
<Route exact path="/finished-tasks" component={FinishedTasks} />
<Route exact path="/finished-tasks" component={FinishedTasks} />
<Route component={NotFound} />
</Switch>
</>
);
};
I was looking for a solution where my main router file had everything it needed to authenticate the routes. No nested component needed or complicated if else's. Below is my approach
import React from "react";
import { Routes, Route } from "react-router-dom";
import { Navigate } from "react-router-dom";
// Other imports
export default function AppRoutes() {
// This coming from react-redux
// After a user is logged in this will set in the global state
const { currentUser } = useCurrentUser();
const landing = <Landing />
const authenticate = (component) => {
return currentUser ? component : <Navigate to="/" />;
}
return (
<Routes>
<Route path="/" element={currentUser ? <Home /> : landing} />
<Route path="/blogs/:id" element={authenticate(<Blog />)} />
<Route path="/blogs/:id/edit" element={authenticate(<BlogEdit />)} />
<Route path="/profile" element={authenticate(<Profile />)} />
<Route path="*" element={<Navigate to="/" />} />
</Routes>
);
}
Based on the solution of #MaxThom for TypeScript, here is an option to be able to pass a component or a render function to PrivateRoute:
import React from "react";
import { Route, Redirect, RouteProps, RouteComponentProps } from "react-router-dom";
const PrivateRoute: React.FC<RouteProps> = ({component, render, ...rest}) => {
const userIsLogged = window.localStorage.getItem('currentUsecase');
if (userIsLogged === undefined) return (
<Route render={
(props: RouteComponentProps<{}>) => <Redirect
to={{ pathname: '/', state: { from: props.location } }}
/>
}/>
)
return (
<Route {...rest} render={render} component={component} />
)
};
export default PrivateRoute;
I hope this helps.
I was also looking for some answer. Here all answers are quite good, but none of them give answers how we can use it if user starts application after opening it back. (I meant to say using cookie together).
No need to create even different privateRoute Component. Below is my code
import React, { Component } from 'react';
import { Route, Switch, BrowserRouter, Redirect } from 'react-router-dom';
import { Provider } from 'react-redux';
import store from './stores';
import requireAuth from './components/authentication/authComponent'
import SearchComponent from './components/search/searchComponent'
import LoginComponent from './components/login/loginComponent'
import ExampleContainer from './containers/ExampleContainer'
class App extends Component {
state = {
auth: true
}
componentDidMount() {
if ( ! Cookies.get('auth')) {
this.setState({auth:false });
}
}
render() {
return (
<Provider store={store}>
<BrowserRouter>
<Switch>
<Route exact path="/searchComponent" component={requireAuth(SearchComponent)} />
<Route exact path="/login" component={LoginComponent} />
<Route exact path="/" component={requireAuth(ExampleContainer)} />
{!this.state.auth && <Redirect push to="/login"/> }
</Switch>
</BrowserRouter>
</Provider>);
}
}
}
export default App;
And here is authComponent
import React from 'react';
import { withRouter } from 'react-router';
import * as Cookie from "js-cookie";
export default function requireAuth(Component) {
class AuthenticatedComponent extends React.Component {
constructor(props) {
super(props);
this.state = {
auth: Cookie.get('auth')
}
}
componentDidMount() {
this.checkAuth();
}
checkAuth() {
const location = this.props.location;
const redirect = location.pathname + location.search;
if ( ! Cookie.get('auth')) {
this.props.history.push(`/login?redirect=${redirect}`);
}
}
render() {
return Cookie.get('auth')
? <Component { ...this.props } />
: null;
}
}
return withRouter(AuthenticatedComponent)
}
Below I have written blog, you can get more depth explanation there as well.
Create Protected routes in ReactJS