动态React-Router路由

Question

I want to use different routing based on some partial state, so I came up with the following:

in my entry file:

import routes from './routes.js'

ReactDOM.render(
  <IntlProvider locale={locale} messages={messages[locale]}>
    <Provider store={store} key='provider'>
      <div>
        <Router history={history} routes={routes(store)} />
      </div>
    </Provider>
  </IntlProvider>,
  document.getElementById('root')
)

routes.js:

export default (store) => (
  let isAuthenticated = store.getState().auth.isAuthenticated

  if(isAuthenticated) {
    return (
      <Route component={Tool}>
        <IndexRoute component={Dashboard} />
        <Route path="products" component={Products} />
      </Route>
    )
  } else {
    return (
      <Route>
        <Route component={Site}>
          <IndexRoute component={Home} />
          <Route path="pricing" component={Pricing} />
        </Route>
        <Route component={Portal}>
          <Route path="login" component={Login} />
          <Route path="register" component={Register} />
        </Route>
      </Route>
    )
  }
)

This works, but only if I actually refresh the page. It will however not transition from Home component to Dashboard component if I just login without refreshing the browser page, so I suspect the routes object is build only once at the beginning and builds up on the current state, but will not change if the state changes mid execution.

I also found https://github.com/ReactTraining/react-router/blob/master/docs/guides/DynamicRouting.md this concerning dynamic routes but as I tried it it doesn't seem to do what I hoped or expected it to do.

Answer 1

You can use the onEnter method on the route level

<Route name="example" path="/example" component={Example} onEnter={functionToCheckAuthorization()} />

With a function to check authorisation eg

function functionToCheckAuthorization(nextState, replace) {
  if (!auth.loggedIn()) {
    replace({
      pathname: '/login',
      state: { nextPathname: nextState.location.pathname }
    })
  }
}

Please see reference: https://github.com/ReactTraining/react-router/blob/master/examples/auth-flow/app.js

Also see reference: https://github.com/ReactTraining/react-router/issues/243 to explain the intentions behind using auth-flow as an example