I am using client side rendering with react 0.14 and react-router 2. I have deployed my app to a local node server.
I am at url (server_url/component1). Whenenver I refresh the page I am getting
Cannot GET /component1
error from server side.
I know this is happening because I am sending request to server again for /component1 which route does not exists on server. But I want to disable that whenever I am refreshing the page it should handled by client side routing only. I do not want to send any request to server.
Entry point to my app index.js
import React from 'react';
import ReactDOM from 'react-dom';
import {Router,browserHistory} from 'react-router';
import routes from './routes';
ReactDOM.render(
<Router routes={routes} history={browserHistory}/>
, document.querySelector('.init')
);
My routes.js file
module.exports = (
<Route path="/" component={App}>
<IndexRoute component={Home}/>
<Route path="/component1" component={comp1}/>
</Route>
)
Edit:
In this scenario should I use browser history or hash history? Are they same?
If I understood you correctly, then you have to redirect all your requests, that don't match defined routes, to the frontend. If it is just a static html file, the route should look like:
app.get('*', function(req, res) {
res.sendFile('public/index.html');
});
UPDATE
To let other routes work, you should put them just in front of catching route, since express applies them vice versa (the first defined route will be applied as the last one):
app.get('/any_route_here', (req, res) => {
res.json({msg: 'ROUTE WORKS'})
});
app.get('*', (req, res) => {
res.sendFile('public/index.html'); //pas routing to react
});
In such a way, if you hit a request like: yourserver.host/any_route_here you will get a json message ROUTE WORKS, but on any other request, the routing will be passed to your frontend.
Related
I am new in react programming. Trying to solve issue my self but, stuck on following issue.
I have following react router code.
import { BrowserRouter as Router, Route, Switch } from 'react-router-dom';
class Main extends Component {
render() {
return (
<Router>
<Switch>
<Route exact path='/' component={Content} />
<Route path='/user/:id' component={User} />
<Route path='*' component={NotFound} />
</Switch>
</Router>
);
}
export default Main
In content there are list of users with their photo. If i click on person photo it will redirect me to particular user.
I wrote my code like:
<Link to={'/user/' + userItem.id}>
<img className="useritem-img" src={userItem.photo} alt={userItem.tagline}/>
</Link>
It will open User Component properly with new URL like: http://localhost:3000/user/457365 on photo click.
But, when copy and paste same url in new tab it will not open. May be i am wrong some where.
Any help would be greatly appreciated.
Edit:
I am getting following error when i open that page:
Cannot GET /user/457365
I am not using create-react-app just simple react application.
Following is my server.js
app.use(express.static('dist'));
app.get('*', (req, res) => {
res.sendFile(path.join(__dirname, './index.html'));
});
app.listen(port, function (err) {
if (err) {
console.log(err);
} else {
open('http://localhost:' + port);
}
})
If you are getting that error that means that the server is trying to handle the routing. Therefore you should make sure that the server allows the SPA to handle the routing.
For instance, if you are using express, you probably want to do something like this:
app.use(express.static(path.join(__dirname, 'client/build')));
app.get('/api/whatever', (req,res) => {
// Whatever your api does
});
// Allow the SPA to take care of the routing
app.get('*', (req,res) =>{
res.sendFile(path.join(__dirname+'/client/build/index.html'));
});
My React router works fine when navigating to '/Article/1/' via a link, though when I refresh my browser, it no longer detects my Article component.
Root.js
import React from 'react';
import { BrowserRouter as Router, Route, Link, browserHistory } from 'react-router-dom';
import Home from '../page/Home/Index';
import Article from '../page/Article/Index';
const Root = () => {
return (
<Router history={browserHistory}>
<div>
<ul>
<li><Link to={'/'}>Home</Link></li>
<li><Link to={'/About'}>About</Link></li>
</ul>
<hr />
<Route exact path={'/'} component={Home} />
<Route path={'/Article/:id'} component={Article} />
</div>
</Router>
);
};
export default Root;
Server.js
var express = require('express');
var app = express();
app.use('/', express.static(__dirname + '/dist'));
app.listen(9000, function() {
console.log('listening on 9000.')
});
I read online that it may be related to me not having a wildcard in my server.js - could anyone point me in the right direction? thank you in advance!
EDIT - this is what I tried (still not rendering):
app.use(express.static(__dirname + '/dist'))
app.get('/*', function(req, res) {
res.sendFile(path.join(__dirname + '/dist/index.html'));
});
I read online that it may be related to me not having a wildcard in my server.js
Yep, that'll be it. The goal here is to have your client handle the routing and not the server, for that to work you need the server to return the client app regardless of what URL it gets.
Simple fix - change / to /* on your server route.
I've got this piece of code as a router for my React 15.0.1 universal app. React router version is 2.3.0.
import React from 'react';
import { createHistory } from 'history';
import { Router, Route, IndexRoute, Redirect, useRouterHistory } from 'react-router';
import MainLayout from './../views/layout/mainLayout.jsx';
import Home from './../views/home.jsx';
import About from './../views/about.jsx';
import Error404 from './../views/404.jsx';
const browserHistory = useRouterHistory(createHistory)({
basename: '/example-url'
});
module.exports = (
<Router history={browserHistory}>
<Route path='/' component={MainLayout}>
<IndexRoute component={Home} />
<Route path='about/' component={About} />
<Route path='*' component={Error404} />
</Route>
</Router>
The problem is, that I'm getting the following error:
Invariant Violation: Browser history needs a DOM
It seems that this solution doesn't work for my server side routing, as I'm trying to set a basename for my routes.
If I forget about the basename, then everything is fine but my application doesn't behave like a spa (I believe that routes on client side are not found).
Here is some of my server side entry point (app.js):
import routes from './client/routers/routes.jsx';
const engine = ReactEngine.server.create({
routes: routes,
routesFilePath: path.join(__dirname, 'client/routers/routes.jsx'),
});
app.engine('.jsx', engine);
app.set('views', __dirname + '/client/views');
app.set('view engine', 'jsx');
app.set('view', ReactEngine.expressView);
app.get('*', function(req, res) {
res.render(req.url, { metadata: res.data.metadata,baseUrl: res.data.baseUrl, url: res.data.url });
});
Could anybody help please? I have read through the docs and supposedly this is the right way to do it and many people seem to support the solution but I'm stuck here.
Thank you very much
what's your history version?
if your react-router version is v2/v3, history version should be v3, v4 is for react-router v4
I am making an isomorphic react application, but now I am stuck of figuring out how to exclude server-side logic from bundling into client side javascript using react-router and webpack.
So my webpack has an entry points to "client.js" which is the clientside bundle javascript.
import React from "react"; import Router from "react-router";
import routes from "../shared/routes";
Router.run(routes, Router.HistoryLocation, (Handler, state) => {
React.render(<Handler/>, document.getElementById('react-app')); });
"client.js" contains react-router routes definition.
And for the server side, I have epxress and route set up as * (all requests route to here)
"server.js"
import routes from "../shared/routes";
app.get('/*', function (req, res) {
Router.run(routes, req.url, (Handler, state) => {
let html = React.renderToString(<Handler/>);
res.render('index', { html: html });
});
});
Since both client and server share the same routes, if I want to set up a route in the react-router e.g. /attractions/:id that will contain server side logic (database query, etc), it will get bundled by the webpack to the client.js
So I am wondering if there is a way to keep just one routes.js that shared by both "client.js" and "server.js" and have "client.js" not bundle some of the server routes.
I came up few possible solutions. But would like to see the best way to do it.
Keep two routes, one for server and one for client, and server routes is the superset of client routes.
Add another layer of abstraction to react-router, so instead of
<Route handler="/attraction/:id"/>
I can use import ABC from "ABCRouteController" and ABCRouteController will determine whether it's node or client and generate route or not generate route.
class AppController extends React.Component {
render () {
let route;
if #isServer
route = <Route handler={#someHandler}" path="/">
else
route =""
return route;
}
}
Add specific routing to server.js. So instead of
app.get('/*', function (req, res) {
Router.run(routes, req.url, (Handler, state) => {
let html = React.renderToString();
res.render('index', { html: html });
});
});
We add more specific routing for handling pure server side logic (similar to two seperate react-router for server and client)
I have been thinking and I am confused with the routing between Client and Server. Suppose I use ReactJS for server-side rendering before sending the request back to web browser, and use react-router as a client-side routing to switch between pages without refreshing as SPA.
What comes to mind is:
How are the routes interpreted? For example, a request from Home page (/home) to Posts page (/posts)
Where does the routing go, on server-side or client?
How does it know how it is processed?
Note, this answer covers React Router version 0.13.x - the upcoming version 1.0 looks like it will have significantly different implementation details
Server
This is a minimal server.js with react-router:
var express = require('express')
var React = require('react')
var Router = require('react-router')
var routes = require('./routes')
var app = express()
// ...express config...
app.use(function(req, res, next) {
var router = Router.create({location: req.url, routes: routes})
router.run(function(Handler, state) {
var html = React.renderToString(<Handler/>)
return res.render('react_page', {html: html})
})
})
Where the routes module exports a list of Routes:
var React = require('react')
var {DefaultRoute, NotFoundRoute, Route} = require('react-router')
module.exports = [
<Route path="/" handler={require('./components/App')}>
{/* ... */}
</Route>
]
Every time a request is made to the server, you create a single-use Router instance configured with the incoming URL as its static location, which is resolved against the tree of routes to set up the appropriate matched routes, calling back with the top-level route handler to be rendered and a record of which child routes matched at each level. This is what's consulted when you use the <RouteHandler> component within a route handling component to render a child route which was matched.
If the user has JavaScript turned off, or it's being slow to load, any links they click on will hit the server again, which is resolved again as above.
Client
This is a minimal client.js with react-router (re-using the same routes module):
var React = require('react')
var Router = require('react-router')
var routes = require('./routes')
Router.run(routes, Router.HistoryLocation, function(Handler, state) {
React.render(<Handler/>, document.body)
})
When you call Router.run(), it creates a Router instance for you behind the scenes, which is re-used every time you navigate around the app, as the URL can be dynamic on the client, as opposed to on the server where a single request has a fixed URL.
In this case, we're using the HistoryLocation, which uses the History API to make sure the right thing happens when you hit the back/forward button. There's also a HashLocation which changes the URL hash to make history entries and listens to the window.onhashchange event to trigger navigation.
When you use react-router's <Link> component, you give it a to prop which is the name of a route, plus any params and query data the route needs. The <a> rendered by this component has an onClick handler which ultimately calls router.transitionTo() on the router instance with the props you gave the link, which looks like this:
/**
* Transitions to the URL specified in the arguments by pushing
* a new URL onto the history stack.
*/
transitionTo: function (to, params, query) {
var path = this.makePath(to, params, query);
if (pendingTransition) {
// Replace so pending location does not stay in history.
location.replace(path);
} else {
location.push(path);
}
},
For a regular link this ultimately calls location.push() on whichever Location type you're using, which handles the details of setting up history so navigating with the back and forward buttons will work, then calls back to router.handleLocationChange() to let the router know it can proceed with transitioning to the new URL path.
The router then calls its own router.dispatch() method with the new URL, which handles the details of determining which of the configured routes match the URL, then calls any transition hooks present for the matched routes. You can implement these transition hooks on any of your route handlers to take some action when a route is about to be navigated away from or navigated to, with the ability to abort the transition if things aren't to your liking.
If the transition wasn't aborted, the final step is to call the callback you gave to Router.run() with the top-level handler component and a state object with all the details of the URL and the matched routes. The top-level handler component is actually the Router instance itself, which handles rendering the top-most route handler which was matched.
The above process is re-run every time you navigate to a new URL on the client.
Example projects
React Router Mega Demo
Isomorphic Lab
With 1.0, React-Router depends on the history module as a peerDependency. This module deals with routing in the browser. By default React-Router uses the HTML5 History API (pushState, replaceState), but you can configure it to use hash-based routing (see below)
The route handling is now done behind the scenes, and ReactRouter sends new props down to the Route handlers when the route changes. The Router has a new onUpdate prop callback whenever a route changes, useful for pageview tracking, or updating the <title>, for example.
Client (HTML5 routing)
import {Router} from 'react-router'
import routes from './routes'
var el = document.getElementById('root')
function track(){
// ...
}
// routes can be children
render(<Router onUpdate={track}>{routes}</Router>, el)
Client (hash-based routing)
import {Router} from 'react-router'
import {createHashHistory} from 'history'
import routes from './routes'
var el = document.getElementById('root')
var history = createHashHistory()
// or routes can be a prop
render(<Router routes={routes} history={history}></Router>, el)
Server
On the server, we can use ReactRouter.match, this is taken from the server rendering guide
import { renderToString } from 'react-dom/server'
import { match, RoutingContext } from 'react-router'
import routes from './routes'
app.get('*', function(req, res) {
// Note that req.url here should be the full URL path from
// the original request, including the query string.
match({ routes, location: req.url }, (error, redirectLocation, renderProps) => {
if (error) {
res.status(500).send(error.message)
} else if (redirectLocation) {
res.redirect(302, redirectLocation.pathname + redirectLocation.search)
} else if (renderProps) {
res.status(200).send(renderToString(<RoutingContext {...renderProps} />))
} else {
res.status(404).send('Not found')
}
})
})