You could structure your Routes
differently so that the Login
component doesn’t have the Header
Like
<BrowserRouter>
<Switch>
<div className="App">
<Route exact path="/(login)" component={LoginContainer}/>
<Route component={DefaultContainer}/>
</div>
</Switch>
</BrowserRouter>
const LoginContainer = () => (
<div className="container">
<Route exact path="https://stackoverflow.com/" render={() => <Redirect to="/login" />} />
<Route path="/login" component={Login} />
</div>
)
const DefaultContainer = () => (
<div>
<Header toggleAlert={this.toggleAlert} />
<div className="container">
<Navbar />
<Route path="/main" component={Main} />
<Route path="/user" component={User} />
<Route path="/hw-setting" component={Setting} />
<Route path="/hw-detail/:id" component={HwDetail} />
<Route path="/gas-detail/:id" component={GasDetail} />
{this.state.isAlertOpen ? <Alert /> : null}
</div>
</div>
)