locale as URL parameter with ReactRouter v4 and redux

Question

I am building an multilingual application with React & Redux using :

{
    "react": "16.2.0",
    "redux": "3.7.2",
    "react-redux": "^5.0.6",
    "react-router-redux": "^5.0.0-alpha.9",
    "react-router": "^4.2.0",
    "react-redux-i18n": "^1.9.1"
}

SOLVED (using path-to-regexp) : https://codesandbox.io/s/307nz4p9nm

EDIT : Finally able to render components. Last trouble is the path generation, for my language selectors.

I am using a <ConnectedRouter /> relying on createBrowserHistory().

I have the following structure :

// containers/App.jsx
<div>
    <ul>
        <li>
            <NavLink to={`${match.url}/`}>Home</NavLink>
        </li>
        <li>
            <NavLink to={`${match.url}/ABC`}>ABC</NavLink>
        </li>
        <li>
            <NavLink to={`${match.url}/DEF`}>DEF</NavLink>
        </li>
        <li>
            <NavLink to={`${match.url}/GHI`}>GHI</NavLink>
        </li>
        <li>
            <NavLink to={`${match.url}/JKL`}>JKL</NavLink>
        </li>
    </ul>
    <div>
        <Router />
    </div>
    <footer>
        <Link to={ (???) }>English</Link>
        <Link to={ (???) }>French</Link>
    </footer>
</div>

// containers/Router.jsx
<Switch>
    <Route exact path={`{match.url}/`} component={Home} />
    <Route exact path={`{match.url}/abc`} component={AbcComponent} />
    <Route exact path={`{match.url}/def`} component={DefComponent} />
    <Route exact path={`{match.url}/ghi`} component={GhiComponent} />
    <Route exact path={`{match.url}/jkl`} component={JklComponent} />
</Switch>

// containers/RootContainer.jsx
<Provider store={store}>
    <ConnectedRouter history={history}>
        <Switch>
            <Route path='/:locale(en|fr)' component={App} />
            <Redirect to='/en' />
        </Switch>
    </ConnectedRouter>
</Provider>

Rendered this way :

const store = createStore(combineReducers({}))
const history = createBrowserHistory()

ReactDOM.render(
    <RootContainer store={store} history={history} />,
    document.getElementById('app-container')
)

Which result in the following URIs :

/
    /(en|fr)
        /abc
        /def
        /ghi
        /jkl

Now, I am looking for a way to implement my locale selectors : generate the path of the current page, just updating the :locale parameter.

Whatever is the route I am currently visiting (/en, /en/abc), match.path always return /:locale(en|fr) and I never access the sub-path (eg. /abc) from my App component.

Then how to hook react-redux-i18n to automatically take the locale from URL instead of managing it in its own state ?

Answer 1

<Switch> only works with Route and Redirect as direct descendents. So the LocalizedRoute component does not work.

<ConnectedRouter basename=/:locale/ history={history} />

The basename prop is unknown to me and unnecessary imo, remove it.

What you can do is using a dynamic route:

<Route path="/:locale/<path>"/> 

And reduce on the locale param in the LOCATION_CHANGE action. But there are plenty more solutions, something like:

<Switch>
   <Route path="/en" component={SwitchMyRoutes} /> // No exact!!
   <Route path="/fr" render={(match,location)=> <SwitchMyRoutes locale="fr" match={match}/>} />
   <Route render={({location})=> <Redirect to={`/en/${location}`}/>}/>
</Switch>