I'm going through this article and I'm trying to figure out how the persistence is supposed to occur in Option 4. From what I can tell, you'd need to redefine the .getLayout for every page. I'm not sure how the logic for nesting is incorporated into further urls.
Here's the code from the article
// /pages/account-settings/basic-information.js
import SiteLayout from '../../components/SiteLayout'
import AccountSettingsLayout from '../../components/AccountSettingsLayout'
const AccountSettingsBasicInformation = () => <div>{/* ... */}</div>
AccountSettingsBasicInformation.getLayout = page => (
<SiteLayout>
<AccountSettingsLayout>{page}</AccountSettingsLayout>
</SiteLayout>
)
export default AccountSettingsBasicInformation
// /pages/_app.js
import React from 'react'
import App from 'next/app'
class MyApp extends App {
render() {
const { Component, pageProps, router } = this.props
const getLayout = Component.getLayout || (page => page)
return getLayout(<Component {...pageProps}></Component>)
}
}
export default MyApp
For example, say AccountSettingsBasicInformation.getLayout is /settings/, how would I use this template to produce something at /settings/username
P.S. If someone has done something in the past they'd recommend over this, I'm open to ideas.
Yes, you have to redefine the getLayout function to every page. As long as the SiteLayout component stays “unchanged” (eg.no props change) the rendered content in that layout component (not the page content itself) stays persistent. This is because React wont rerender that component.
I used Adam’s article when I was building next.js lib for handlin modal routes. You can check the example folder where you can see I am defining the getLayout property on every page which should be rendered with layout.
Example: https://github.com/svobik7/next-bodies/tree/master/example
so I had an idea of generating various "landing pages" for my project that would use similar elements with different data.
The idea is to essentially to have my react app (create-react-app) load a "container component" and would then display static landing pages.
For example files are...
screenContainer.jsx
pageOne.html
pageTwo.html
Depending on the user's choice I can render pageOne.html or page2.html. These pages are "templates" which work with jquery css, etc.
Is this possible? If so, what is the best approach.
I'm using html-loader now but am stuck at this:
./src/landingPages/serre/assets/js/plugins/jquery/jquery-3.3.1.min.js
Line 2:1: Expected an assignment or function call and instead saw an expression no-unused-expressions
Any ideas?
Thanks!
Here is my current file react screen container component:
require("es6-object-assign/auto");
import React, { Component, Fragment } from "react";
import $ from "jquery";
import Page from "../landingPages/serre/index.html";
var ReactDOMServer = require("react-dom/server");
var HtmlToReactParser = require("html-to-react").Parser;
var htmlDoc = { __html: Page };
class CreatorLandingPageContainer extends Component {
constructor(props) {
super(props);
}
render() {
return <Fragment>HELLO{this.renderPage()}</Fragment>;
}
renderPage() {
var htmlToReactParser = new HtmlToReactParser();
var reactElement = htmlToReactParser.parse(htmlDoc);
return reactElement;
}
}
export default CreatorLandingPageContainer;
Hi guys hope you're fine, I'm student and I have this year to do some thing like a project to end my studies , so I chose to create a website (using React/Django) I already have the site but made by HTML,CSS,bootstrap & JQuery , so now i have to convert it to react , but i have a problem i don't know how to include some js files inside a components , every things else is going good, I need just what is in the js files to applied it in some components.
Hope you help me out.
cordially
You can have javascript code inside your components likewise
const Component = props => {
//javascript code
return (<div>-- Component JSX---</div>)
}
if the javascript code if just needed for the initializing of the component you can use react hooks to run a piece of code only one time after the component is created.
import React, { useEffect } from 'react';
const Component = props => {
useEffect(() => {
// javascript code
}, [])
return (<div>--Component JSX---</div>
}
the empty array as second argument indicates the useEffect hook that the effect should only be ran once after the component has been initialized.
So the way React works is you will be building "HTML" using React functional/class components like this example
import React from 'react';
//Just like a normal javascript function, it listens to in this
instance, the return statement. You're returning regular HTML.
function Navbar() {
return (
<div>This is some text built by react</div>
<p>Saying hello to react by building a functional component</p>
)
}
export default Navbar; //This right here is exporting the file so it can be
//used elsewhere just import it in other file.
So the return is where you will build your website, then in the next component you will import should look something like this.
Normally, it is called App.js or in some instances where it's more complex it's anythinng you want.
import Navbar from '../components/Navbar.js';
function App() {
return (
<Navbar /> //Now you don't have to write your main content in here you can
//just import it. Just like Navbar
<div>This is my main content in page</div>
)
}
I'm trying to import / require components dynamically, but somehow when I do it React complains. The require function does find it, but React throws an error saying it is missing some functions 't' etc.. All of this in an electron app.
I have a wizard setup (that is working, but not so elegant I think), where each page has it's own layout and jsx component. If I'd like to add a new page, I don't want to manage x-number of files, and at the moment I have to due to the setup I have currently. Below you can find what I want to achieve and what I'm doing now to achieve it. If there are any suggestions, code smells or better options please let me know as I'm quite new to React and ES2015 (as I'm from a C# background).
What I'm trying to achieve
export default class WizardPageContainer extends Component {
// Constructor
constructor(props) {
super(props);
}
// Render
render() {
const WizardPage = require(`./path/to/${this.props.step.id}`);
return (
<WizardPage step={this.props.step} />
);
}
}
How I'm currently doing it : which means I have to declare the imports / files first on top of the "WizardPageContainer" component.. Which means extra work and prone to errors/forgetting things. I should add, this code is working now ok, but I don't think this is elegant/future proof:
/* PAGES */
import WizardPage_Welcome from './pages/0.wizard.welcome';
import WizardPage_SystemCheck from './pages/1.wizard.systemCheck';
import WizardPage_SignIn from './pages/2.wizard.signIn';
import WizardPage_ExamCode from './pages/3.wizard.examCode';
import WizardPage_TakeExamination from './pages/4.wizard.takeExamination';
import WizardPage_Close from './pages/5.wizard.close';
const pages = [
WizardPage_Welcome,
WizardPage_SystemCheck,
WizardPage_SignIn,
WizardPage_ExamCode,
WizardPage_TakeExamination,
WizardPage_Close
];
/*/********************************************************************///
/* ******************************************************************** */
/* COMPONENT */
export default class WizardPageContainer extends Component {
// Constructor
constructor(props) {
super(props);
}
// Render
render() {
const WizardPage = pages[`${this.props.step.id}`];
return (
<WizardPage step={this.props.step} />
);
}
}
/*/********************************************************************///
I think it is about the "default". i have problem like this. Can you check this code;
https://github.com/robeio/robe-react-admin/blob/master/src/app/HasAuthorization.jsx#L10
Also you can check the example usage;
https://github.com/robeio/robe-react-admin/blob/master/src/app/HasAuthorization.jsx#L26
Your const pages needs to be an object, not an array.
You can see a working version I made of this here:
https://github.com/Frazer/meteor-react-nav/blob/master/lib/jsx/App.jsx
Best advice: Use Webpack to handle your imports, it's way more efficient than we could ever be.
I am building an app with NodeJS and would like to use React for some of the interactive components across the application. I do not want to make it single page app.
How do I break up or bundle my React components across a multi-page app?
Currently all my components are in one file even though I may never load them in some sections of the app.
So far I am trying using conditional statements to render components by searching for the ID of the container where React will render. I am not 100% sure of what the best practices are with React. It looks something like this.
if(document.getElementById('a-compenent-in-page-1')) {
React.render(
<AnimalBox url="/api/birds" />,
document.getElementById('a-compenent-in-page-1')
);
}
if(document.getElementById('a-compenent-in-page-2')) {
React.render(
<AnimalBox url="/api/cats" />,
document.getElementById('a-compenent-in-page-2')
);
}
if(document.getElementById('a-compenent-in-page-3')) {
React.render(
<AnimalSearchBox url="/api/search/:term" />,
document.getElementById('a-compenent-in-page-3')
);
}
I am still reading the documentation and haven't found what I need yet for a multi page app.
Currently, I am doing something similar.
The application is not a full React App, I am using React for dynamic Stuff, like CommentBox, which is autark. And can be included at any Point with special params..
However, all my sub Apps are loaded and included into a single file all.js, so it can be cached by the browser across pages.
When I need to include an App into the SSR Templates, I just have to include a DIV with the class "__react-root" and a special ID, ( the name of the React App to be rendered )
The logic is really simple:
import CommentBox from './apps/CommentBox';
import OtherApp from './apps/OtherApp';
const APPS = {
CommentBox,
OtherApp
};
function renderAppInElement(el) {
var App = APPS[el.id];
if (!App) return;
// get props from elements data attribute, like the post_id
const props = Object.assign({}, el.dataset);
ReactDOM.render(<App {...props} />, el);
}
document
.querySelectorAll('.__react-root')
.forEach(renderAppInElement)
<div>Some Article</div>
<div id="CommentBox" data-post_id="10" class="__react-root"></div>
<script src="/all.js"></script>
Edit
Since webpack perfectly supports code-splitting & LazyLoading, I thought it make sense to include an example where you don't need to load all your apps in one bundle, but split them up and load on demand.
import React from 'react';
import ReactDOM from 'react-dom';
const apps = {
'One': () => import('./One'),
'Two': () => import('./Two'),
}
const renderAppInElement = (el) => {
if (apps[el.id]) {
apps[el.id]().then((App) => {
ReactDOM.render(<App {...el.dataset} />, el);
});
}
}
You can provide several entry points for the application in the webpack.config.js file:
var config = {
entry: {
home: path.resolve(__dirname, './src/main'),
page1: path.resolve(__dirname, './src/page1'),
page2: path.resolve(__dirname, './src/page2'),
vendors: ['react']
},
output: {
path: path.join(__dirname, 'js'),
filename: '[name].bundle.js',
chunkFilename: '[id].chunk.js'
},
}
then you can have in your src folder three different html files with their respective js files (example for page1):
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Page 1</title>
</head>
<body>
<div id="app"></div>
<script src="./vendors.js"></script>
<script src="./page1.bundle.js"></script>
</body>
</html>
JavaScript file:
import React from 'react'
import ReactDom from 'react-dom'
import App from './components/App'
import ComponentA from './components/ReactComponentA'
ReactDom.render(<div>
<App title='page1' />
<ReactComponentA/>
</div>, document.getElementById('app'))
Different React components can be then loaded for each single page.
I'm building an application from the ground up and am learning as I go, but I think what you are looking for is React-Router. React-Router maps your components to specific URLs. For example:
render((
<Router>
<Route path="/" component={App}>
<Route path="api/animals" component={Animals}>
<Route path="birds" component={Birds}/>
<Route path="cats" component={Cats}/>
</Route>
</Route>
<Route path="api/search:term" component={AnimalSearchBox}>
</Router>
), document.body)
In the search case, 'term' is accessible as a property in the AnimalSearchBox:
componentDidMount() {
// from the path `/api/search/:term`
const term = this.props.params.term
}
Try it out. This tutorial is the one that put me over the top in terms of my understanding of this and other related topics.
Original answer follows:
I found my way here looking for the same answer. See if this post inspires you. If your application is anything like mine, it will have areas that change very little and varies only in the main body. You could create a widget whose responsibility it is to render a different widget based upon the state of the application. Using a flux architecture, you could dispatch a navigation action that changes the state your body widget switches upon, effectively updating the body of the page only.
That's the approach I'm attempting now.
Are you using a CMS? They tend to like changing urls which could break your application.
Another way is using something like React Habitat.
With it, you can register components and they automatically get exposed to the dom.
Example
Register component(s):
container.register('AnimalBox', AnimalBox);
container.register('AnimalSearchBox', AnimalSearchBox);
Then they are availiable in your dom like this:
<div data-component="AnimalBox"></div>
<div data-component="AnimalSearchBox"></div>
The above will be automatically replaced with your react components.
You can then automatically pass properties (or props) to your components too:
<div data-component="AnimalBox" data-prop-size="small"></div>
This will expose size as a prop to your component. There are additional options for passing other types such as json, array's, ints, floats etc.
I know it's been a while since this question was asked but hopefully this helps someone.
As #Cocomico mentioned you could provide several entry points for the application in the webpack.config.js file. If you are looking for a simple Webpack setup (based on the idea of multiple entry points) that allows you to add React components to static pages you may consider using this: https://github.com/przemek-nowicki/multi-page-app-with-react
I revive this old question since I was in the same situation, without finding an answer that could satisfy my needs. So, based on #webdeb 's answer, I wrote a mini-framework that use CRA (without eject) to inject as many components you want in any HTML page while preserving all the CRA's benefits.
TL;DR
You can check my public repo here that contains all the needed files and a link to a Medium article where I thoroughly explain all this stuff.
The general idea
The trick is to install CRA as you normally would, and update the index.js file as follows :
import React, { Suspense } from 'react';
import ReactDOM from 'react-dom';
import './index.css';
import reportWebVitals from './reportWebVitals';
//list here all the components that could be inserted in a web page
const apps = {
'App': React.lazy(() => import('./App')),
'TestComponent1': React.lazy(() => import('./TestComponent1')),
'TestComponent2': React.lazy(() => import('./TestComponent2')),
}
//event manager to communicate between the components
const bridgeEvent = new EventTarget();
//common fallback for all the components
function Fallback() {
return <div>Loading...</div>;
}
const renderAppInElement = (el) => {
if(apps[el.dataset.reactComponent] && !el.dataset.rendered){
//get the component's name stored in the data-react-component attribute
const App = apps[el.dataset.reactComponent];
//render the component, inject all the HTML attributes and the Event bridge
ReactDOM.render(
<Suspense fallback={<Fallback />}>
<App {...el.dataset} bridgeEvent={bridgeEvent}/>
</Suspense>
, el);
el.dataset.rendered = true;
}
else if(el.dataset.rendered){
console.log('el', el, 'is already rendered')
}
}
//ONLY FOR THE DEV PHASE
const rootEl = document.getElementById('root');
//generate components without attributes
if(process.env.REACT_APP_RENDER_CMP){
const components = process.env.REACT_APP_RENDER_CMP.split(',');
components.forEach(item => {
const componentEl = document.createElement('div');
componentEl.setAttribute("data-react-component", item);
componentEl.className = "__react-cmp";
rootEl.append(componentEl);
});
}
//generate components with attributes
if(process.env.REACT_APP_RENDER_CMP_WITH_ATTRS){
let componentsWithAttrs;
try{
componentsWithAttrs = JSON.parse(process.env.REACT_APP_RENDER_CMP_WITH_ATTRS);
}
catch(e){
console.log('fail to parse REACT_APP_RENDER_CMP_WITH_ATTRS', e);
}
if(componentsWithAttrs){
componentsWithAttrs.forEach(cmp => {
const componentEl = document.createElement('div');
componentEl.setAttribute("data-react-component", cmp.class);
componentEl.className = "__react-cmp";
Object.keys(cmp.data).forEach(attrKey => {
componentEl.setAttribute(attrKey, cmp.data[attrKey]);
});
rootEl.append(componentEl);
});
}
}
//the default name of the global object is ReactComponents, but it could be customized via the REACT_APP_NAMESPACE environment variable
const appNamespace = process.env.REACT_APP_NAMESPACE || "ReactComponents";
window[appNamespace] = {
ready: false,
parseComponents(container){
//parse the container or the whole document and inject all the components in the containers that have a "__react-cmp" class
(container || document)
.querySelectorAll('.__react-cmp')
.forEach(renderAppInElement);
}
}
window[appNamespace].parseComponents();
window[appNamespace].ready = true;
//if dynamic parsing must be done via the window.ReactComponents.parseComponents() method
//check the availability of window.ReactComponents object via window.ReactComponents.ready property
//or define a window.ReactComponentsAsyncInit() method to be notified of the availability
if(typeof window[`${appNamespace}AsyncInit`] === 'function'){
window[`${appNamespace}AsyncInit`]();
}
// If you want to start measuring performance in your app, pass a function
// to log results (for example: reportWebVitals(console.log))
reportWebVitals();
Then you can add REACT_APP_RENDER_CMP and/or REACT_APP_RENDER_CMP_WITH_ATTRS environment variables to test your components while using the CRA's development server. Your .env.development.local file could look like:
#this will render the TestComponent1 and TestComponent2 without any attributes
REACT_APP_RENDER_CMP="TestComponent1,TestComponent2"
#this will render TestComponent1 with the data-test-attribute attribute set to "test attribute value"
REACT_APP_RENDER_CMP_WITH_ATTRS="[{"class":"TestComponent1","data":{"data-test-attribute":"test attribute value"}}]"
After building your files, you should have your index.html file with all the .js and .css files you need to include in each page of your multi-page app that should load your React components. Don't forget to add INLINE_RUNTIME_CHUNK=false in your .env file to avoid any inline javascript!
Then, add the components' containers in the HTML pages where you want them to show. For instance:
<div class="__react-cmp" data-react-component="TestComponent1"></div>
The parseComponents() declared in the CRA's index.js file should be executed, grabbing your div with the .__react-cmp class, then use it as a container for your TestComponent1 React component.
In the dedicated repo and article I explain how you could change your build path with the CRA's BUILD_PATH environment variable (so you can host your built files in your server or in a CDN) and I provide a loader that will parse the built index.html file and dynamically insert all the needed .js and .css files in your page (so you just have to include the loader, instead of all the files). Here is how the loader looks like, assuming its file name is cmp-loader.js and hosted next to your built index.html file:
(async () => {
const head = document.getElementsByTagName('head')[0];
const scriptSrcRegexp = new RegExp('<script.*?src="(.*?)"', 'gmi');
//get the exact script's src as defined in the src attribute
const scriptSrc = scriptSrcRegexp.exec(document.currentScript.outerHTML);
//all the resources should be relative to the path of this script
const resourcesPath = (scriptSrc && scriptSrc.length > 1) ? scriptSrc[1].replace('cmp-loader.js', '') : '';
//get the index content
const indexHTML = await (await fetch(resourcesPath+'index.html', {cache:'reload'})).text();
//assume that all the .js and .css files to load are in the "static" folder
const reactCSSRegexp = new RegExp(`<link href="${resourcesPath}static\/css\/(.*?)\.css" rel="stylesheet">`, 'gm');
const reactJSRegexp = new RegExp(`<script (.*?) src="${resourcesPath}static\/js\/(.*?)\.js"><\/script>`, 'gm');
//grab all the css tags
const ReactCSS = [].concat(indexHTML.match(reactCSSRegexp)).join('');
//grab all the js tags
const ReactJS = [].concat(indexHTML.match(reactJSRegexp)).join('');
//parse and execute the scripts
const scriptsDoc = new DOMParser().parseFromString(ReactJS, 'text/html');
Array.from(scriptsDoc.getElementsByTagName('script')).forEach(item => {
const script = document.createElement('script');
[...item.attributes].forEach(attr => {
script.setAttribute(attr.name, attr.value)
})
head.appendChild(script);
});
//inject the CSS
head.insertAdjacentHTML('beforeend', ReactCSS);
})().catch(e => {
console.log('fail to load react-cmp', e)
});
I suggest you take a look at InertiaJS: https://inertiajs.com/
With Inertia you build apps just like you've always done with your server-side web framework of choice. You use your framework's existing functionality for routing, controllers, middleware, authentication, authorization, data fetching, and more.
The only thing that's different is your view layer. Instead of using server-side rendering (eg. Blade or ERB templates), the views are JavaScript page components. This allows you to build your entire front-end using React, Vue or Svelte.