electron + react router: initial app is not at root route - javascript

I have a setup in electron with react router. When I load the app into my browser, and don't go via electron, everything works fine, and the router is good.
When I use it in electron however, my software is not at the root route initially. I can navigate to the root route with the links I created, and that works fine. But it's not there initially, I get a 404. But I don't get any errors as such.
So when i start it, it looks like this:
But the Links all work, so I can click for example on Home at am redirected to the Home route:
My switch looks like this:
<Switch>
<Route exact path='/' component={Home}/>
<Route component={NotFound}/>
</Switch>
And that component sits in another component:
import React from 'react';
import Header from './Header.jsx'
import Main from './Main.jsx'
export default class App extends React.Component {
render() {
return (
<div style={{textAlign: 'center'}}>
<Header />
<Main />
</div>);
}
}
which sits in this component:
import React from 'react';
import ReactDOM from 'react-dom';
import App from './components/App.jsx';
import {BrowserRouter} from 'react-router-dom'
ReactDOM.render(
<BrowserRouter>
<App />
</BrowserRouter>,
document.getElementById('root'));
and here is also the Main.js which holds the Routes:
const Main = () => (
<main>
<Switch>
<Route exact path='/' component={Home}/>
<Route component={NotFound}/>
</Switch>
</main>
)
So as far as I am concerned, everything should be working fine, and, as I said, it does in the browser. But electron does not seem to start my react router at /. Why could this be?

Related

react-router-dom 6.8.1 and react 18.2.0 <Link> only updated URL

I'm using react-router-dom 6.8.1 and react 18.2.0 and trying to set up browser router using the createBrowserRouter() and createRoutesFromElements() functions. I'm then rendering my browser router using the <RouterProvider> component, and the front page of my website displays fine (the App component does). For some reason, any react-router-dom <Link> components I place in my components appear on the front page, but when I click them, only the URL changes, and it does not update the UI. What's weird is that if I use an <Outlet>, the UI from the child routes will display when I click any links, but that's not what I want. I need to navigate to a separate page.
Here's where I'm creating the browser router:
import * as ReactDOM from 'react-dom/client';
import {
createBrowserRouter,
createRoutesFromElements,
Route,
RouterProvider,
} from 'react-router-dom';
import App from './app/app';
import ParticipantProfile from './app/profiles/participantProfile';
const browserRouter = createBrowserRouter(
createRoutesFromElements(
<Route path="/" element={<App />}>
<Route path="profile" element={<ParticipantProfile />} />
</Route>
)
);
const root = ReactDOM.createRoot(
document.getElementById('root') as HTMLElement
);
root.render(<RouterProvider router={browserRouter} />);
Here's where I create my <Link>:
import { Link } from 'react-router-dom';
import { createTheme } from '#mui/material/styles';
const theme = createTheme();
function App() {
return <Link to="profile">Profile</Link>;
}
export default App;
I'm tried rendering the <BrowserRouter> component itself instead of using createRoutesFromElements, but same results. Changing the path from profile to /profile also seems to do nothing.
If you want each route to map to a different component (without layout nesting), there is no need to wrap them all under a single <Route> element.
<>
<Route path="/" element={<App />} />
<Route path="/profile" element={<ParticipantProfile />} />
</>
Alternatively, only specify the element on the child route.
<Route path="/">
<Route index element={<App />} />
<Route path="profile" element={<ParticipantProfile />} />
</Route>

React Router won't load pages without first loading the home page

I am using React Router to navigate to different pages, each one being a different React Component. If I go to the home page first (e.g. /) then click a Link to take me to a different component (e.g. /new-guide), it renders fine. However, when I push the project to production using AWS or Netlify, accessing any component fails without first going to the home component.
Here's what it looks like in action. If you visit https://www.kelv.me/ then click the 'Gap Year' guide, the gap year component renders correctly. However, if you close the tab and try to visit https://www.kelv.me/gap-year directly, a 'Page not found' error occurs.
Here's my App.js:
import { BrowserRouter as Router, Route, Switch } from 'react-router-dom';
import GapYear from './components/GapYear';
function App() {
return (
<Fragment>
<Router>
<Fragment>
<div id='content'>
<Switch>
<Route exact path='/' component={Landing} />
<Route exact path='/gap-year' component={GapYear} />
</Switch>
</div>
</Fragment>
</Router>
</Fragment>
);
}
export default App;
And here's my index.js:
import ReactDOM from 'react-dom';
import App from './App';
import { BrowserRouter as Router } from 'react-router-dom';
ReactDOM.render(
<Router>
<App />
</Router>,
document.getElementById('root')
);

Component not rendering with react-router-dom

I am trying to navigate and show different components on different route .
so my index.js looks like this
ReactDOM.render(<Routes />, document.getElementById('root'));
then render function of my Routes component is like
render() {
return (
<BrowserRouter>
<Switch>
<Route exact path="/" component={HomePage} />
<Route exact path="/admin/add-product" component={AdminAddProduct}/>
</Switch>
</BrowserRouter>
);
}
so i have navbar component where on clicking i have defined the actions
render() {
return (
<Router>
<MDBNavbar color="default-color" dark expand="md">
<MDBNavbarToggler onClick={this.toggleCollapse} />
<MDBCollapse id="navbarCollapse3" isOpen={this.state.isOpen} navbar>
<MDBNavbarNav left>
<MDBNavItem>
<MDBNavLink to="/">Shop</MDBNavLink>
</MDBNavItem>
<MDBNavItem>
<MDBNavLink to="/admin/add-product">Admin product</MDBNavLink>
</MDBNavItem>
</MDBNavbarNav>
</MDBCollapse>
</MDBNavbar>
</Router>
);
}
}
so initially when i am in ' / ' i am seeing my Homepage component as i have defined in routes.js file but then when i click on Admin product the routes go to /admin/add-product but then the component is not rendered on screen
If i refresh my page staying on that route then only i am able to see the contents of AdminAddProduct page.
Without seeing the entire structure of your app, I don't know if this is good advice. I am assuming you also have an app.js file.
You will need app.js in your index.js file and it should be wrapped the Router.
Your index.js file should look something like this:
import React from 'react';
import ReactDOM from 'react-dom';
import { BrowserRouter as Router } from 'react-router-dom';
import App from './App';
ReactDOM.render(
<Router>
<App />
</Router>,
document.getElementById('root')
);
Notice that BrowserRouter is in index.js, not in the Routes component, in this example.
Also, make sure that your Routes component is imported into App.js or write this logic directly in App.js.
<Switch>
<Route exact path="/" component={HomePage} />
<Route exact path="/admin/add-product" component={AdminAddProduct}/>
</Switch>
This might be conflict problem depending on you react-router-dom and mdbootstrap version since the react-router-dom version 5.0.0v had a conflict with MDBNavLink component but the issue has been resolved for react-router-dom version 5.0.1v so try upgrading the react-router-dom version to the latest
npm i react-router-dom#latest

Migrate 'react-router' into 'react-router-dom' (v4)

I am learning React Routing and I am watching this tutorial:
https://www.youtube.com/watch?v=1iAG6h9ff5s
Its 2016 tutorial so I suppose something changed because 'react-router' not working anymore and I am supposed to use 'react-router-dom'.
I found that I must uninstall 'history' and 'react-router' and use 'react-router-dom' instead, but It not working as expected when I change it.
How to edit this to make it working with 'react-router-dom'?
import React from "react";
import ReactDOM from "react-dom";
import {Router, Route, IndexRoute, hashHistory} from "react-router";
import Layout from "./pages/Layout";
import Archives from "./pages/Archives";
import Featured from "./pages/Featured";
import Settings from "./pages/Settings";
const app = document.getElementById('app');
ReactDOM.render(
<Router history={hashHistory}>
<Route path="/" component={Layout}>
<IndexRoute component={Featured}></IndexRoute>
<Route path="archives" component={Archives}></Route>
<Route path="settings" component={Settings}></Route>
</Route>
</Router>,
app);
My edit:
import React from "react";
import ReactDOM from "react-dom";
import {BrowserRouter as Router, Route, Link, Switch} from "react-router-dom";
import Layout from "./pages/Layout";
import Archives from "./pages/Archives";
import Featured from "./pages/Featured";
import Settings from "./pages/Settings";
const app = document.getElementById('app');
ReactDOM.render(
<Router>
<Route path="/" component={Layout}>
<Route path="/featured" component={Featured}/>
<Route path="/archives" component={Archives}/>
<Route path="/settings" component={Settings}/>
</Route>
</Router>,
app);
Also pushState not working...
Layout.js
import React from "react";
import {Link} from "react-router-dom";
export default class Layout extends React.Component {
navigate() {
this.props.history.pushState(null, "/");
}
render() {
return (
<div>
{this.props.children}
<h1>Welcome</h1>
<button onClick={this.navigate.bind(this)}>Featured</button>
</div>
);
}
}
When I click to Link url change, but content is not loaded... Also when I access url I get "Cannot GET" error
After watching the video, you probably want something like this. At first this would not be so easy to understand but after seeing a few of them you digest it. First you render your Layout with one Route. Then in this top route, you use other Routes to setup your components.
We usually use exact props for a top root like /. If you don't setup your app like that, for example all your routes is in your top Router config, then to use a route something like /featured we must have exact prop. If we don't use it Router always hit / path and we always see the top level component.
But, in your situation, you want other components to be routed in your top level component. So, we drop exact prop here.
Also you can use push to change history.
Update
After think about the navigation button named "Featured", I think you want the Featured component rendered as default one here. When hit the button again you will come back to Featured one. I've changed the code according to that. In this version, we add a / route in the Layout and point it to Featured. So, when we come here it is rendered. But, we use exact prop here since we also want routes like "/featured", "/archives" and "/settings".
export default class Layout extends React.Component {
navigate = () => this.props.history.push("/");
render() {
return (
<div>
<h1>Welcome</h1>
<Link to="/featured">Featured</Link>
<Link to="/archives">Archives</Link>
<Link to="/settings">Settings</Link>
<br />
<button onClick={this.navigate}>Featured</button>
<Route exact path="/" component={Featured} />
<Route path="/featured" component={Featured} />
<Route path="/archives" component={Archives} />
<Route path="/settings" component={Settings} />
<div>
Some other info.
</div>
</div>
);
}
}
const app = document.getElementById('root');
ReactDOM.render(
<Router>
<Switch>
<Route path="/" component={Layout} />
</Switch>
</Router>,
app);

Pagination issue using React Router v4.1

I'm migrating a site in ASP.NET MVC to REACT. And for pagination i have created a component in React.
Issue i'm facing is with Routing for the pagination URLs. React Router is not able to detect that the URL is different when i click on a pagination URL
Let me explain:
app.js code:
import React from 'react';
import ReactDOM from 'react-dom';
import {createStore, applyMiddleware} from 'redux';
import allReducers from '../reducers/index';
import {Provider} from 'react-redux';
import ReduxPromiseMiddleware from 'redux-promise';
import { BrowserRouter, Route } from 'react-router-dom';
import Main from './main';
import Layout from './layout';
const app = document.getElementById('root');
const store = createStore(allReducers, applyMiddleware(ReduxPromiseMiddleware));
ReactDOM.render(<Provider store={store}>
<BrowserRouter>
<Layout>
<Main/>
</Layout>
</BrowserRouter>
</Provider>
,app);
Main component render:
render(){
return(
<main>
<Switch>
<Route exact path='/' component={HomePage}/>
<Route path='/posts' component={PostsRouter} />
<Route path='/studies' component={StudiesPage} />
</Switch>
</main>
);
}
PostsRouter component:
const PostsRouter = () => (
<Switch>
<Route exact path='/posts' component={PostsPage} />
<Route path='/posts/:page' component={PostsPage} />
</Switch>
);
For both /posts and /posts/2 i need the component to be PostsPage.
Lets say i'm at /home. Now i click a posts link and URL changes to /posts. Now if i click /posts/2 link, nothing happens. React Router doesn't detect that the URL is different.
And a weird thing i noted is that if i change the component:
<Route path='/posts/:page' component={PostsPage} />
to
<Route path='/posts/:page' component={StudiesPage} />
then React Router routes me to StudiesPage component if i click on /posts/2 link when i'm on /posts URL.
May be i'm missing something obvious. But i haven't been able to figure out a way after lots of attempts.
I suspect Sergey's comment was right, that's what my problem ended up being. I was fetching data within componentDidMount() but didn't realise that in order to actually update it with new data when the next page link was clicked, I needed to do the same thing inside componentWillReceiveProps(). You can see my full source here but the biggest key part was this:
componentWillReceiveProps(nextProps) {
this.setState({
loaded: false
});
this.fetchMediaItems(nextProps.match.params.page);
}
componentDidMount() {
this.fetchMediaItems(this.props.match.params.page);
}
componentWillReceiveProps() receives the new properties, including page number, when you click on the link to page 2, so you need to do whatever inside there to update with the new state.

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