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let UserContext = React.createContext(); | |
class App extends React.Component { | |
state = { | |
user: null, | |
setUser: user => { | |
this.setState({ user }); | |
} | |
}; | |
render() { | |
return ( | |
<UserContext.Provider value={this.state}> | |
<Router> | |
<Home path="/" /> | |
<About path="/about" /> | |
<PrivateRoute as={Dashboard} path="/dashboard" /> | |
</Router> | |
</UserContext.Provider> | |
); | |
} | |
} | |
class PrivateRoute extends React.Component { | |
static contextType = UserContext; | |
render() { | |
let { as: Comp, ...props } = this.props; | |
return this.context.user ? <Comp {...props} /> : <Login />; | |
} | |
} | |
class Login extends React.Component { | |
static contextType = UserContext; | |
render() { | |
return ( | |
<form | |
onSubmit={async () => { | |
let user = await doWhateverYouNeedToDoToLogin(); | |
this.context.setUser(user); | |
}} | |
/> | |
); | |
} | |
} | |
function Home() { | |
return <div>home</div>; | |
} | |
function About() { | |
return <div>about</div>; | |
} | |
function Dashboard() { | |
return <div>Protected dashboard</div>; | |
} |
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