Hello community :) My first Q here.
(There were couple of similar questions but they didn't answer my particular code issue and I tried them to apply but without success.)
So I would like to render the child component in nested route without the parent one showing in the view
See the picture at the end --->
import React from 'react';
import {BrowserRouter, Route, Switch, Link} from "react-router-dom";
import 'bootstrap/dist/css/bootstrap.min.css';
import Routing from "./components/Routings";
export default class Browserrouting extends React.Component {
render () {
return (
<BrowserRouter>
<Routing/>
</BrowserRouter>
)
}
}
Here is the Routing component :
import About from "../views/About";
import HomeBackground from "../views/Background";
import ShelterApp from '../views/ShelterApp';
export default (props) => (
<div className="flexColumn">
<div> <ul className="flexRow center">
<li className="homeLink"><Link className="colorBrown" to="/">Home</Link></li>
<li className="homeLink"><Link className="colorBrown" to="/shelterApp">Shelter App</Link></li>
<li className="homeLink"><Link className="colorBrown" to="/about">About our site and shelter</Link></li>
</ul></div>
<Switch>
<Route exact path="/" component={() => <HomeBackground />} />
<Route path="/about" component={() => <About />} />
<Route path="/shelterApp" component={() => <ShelterApp />} />
</Switch>
</div>
)
And in ShelterApp component I have some text and imported another component which contains the links and nested routes I would like to display without showing the parent component ShelterApp:
class ShelterApp extends React.Component {
render() {
return (
<div className="flex center">
<div className="card center" style={{ "width": "25em", "height":"25em" }}>
<div className="card-body textCenter">
<h5 className="card-title paddingTitle">Welcome to our site</h5>
<h6 className="card-subtitle mb-2 text-muted"> Login or register if it's your first time</h6>
</div>
<LoginRouting match={this.props.match} />
</div>
</div>)
}
}
export default ShelterApp;
and the final child componet with the "lowest" routes in hierarchy :
class LoginRouting extends React.Component {
constructor(props) {
super(props)
this.state = {
users: []
}
}
static propTypes = {
match: PropTypes.object.isRequired,
location: PropTypes.object.isRequired,
history: PropTypes.object.isRequired
};
render() {
const { match, location, history } = this.props;
return (
<div >
<div className="flexRow center">
<Button className={" loginRouting"} type={"button"} bootstrapClass={"btn btn-light"} child={<Link to="/shelterApp/login">Login form</Link>} />
<Button className={" loginRouting"} type={"button"} bootstrapClass={"btn btn-light"} child={<Link to="/shelterApp/register">Register form</Link>} />
</div>
<div>
<Route path="/shelterApp/login" render={() => <Login />} />
<Route path="/shelterApp/register" render={() => <Register />} />
</div>
</div>
)
}
}
export default withRouter( LoginRouting)
enter image description here
IMAGE with the view :
I will be thankful for any advises !
On your ShelterApp component you can create a new state called hideInfo, or something, that tracks if the user clicked on "Login form" or "Register form".
Then you can pass a props to your <LoginRouting> component.
When the user clicks on "Login form" or "Register form" you change this.hideInfo.
<LoginRouting
onShowForm={() => this.setState({ hideInfo: !hideInfo})}
match={this.props.match}
/>
Related
so i had a navbar component that has a <Link></Link> inside of it the problem in i couldn't use that link for the router (it wont refresh) when i clicked on it although the link appears on the URL but it didn't refresh
here's the code
import React, { Component } from 'react'
import {BrowserRouter as Router} from 'react-router-dom'
import Route from 'react-router-dom/Route'
import Nav from './Nav'
export class App extends Component {
render() {
return (
<div className="App">
<Router>
{/* NAVBAR */}
<Nav />
<Route path="/" exact render={
() => <h1>home</h1>
}/>
<Route path="/about" exact render={
() => <h1>about</h1>
}/>
<Route path="/author" exact render={
() => <h1>author</h1>
}/>
</Router>
</div>
)
}
}
export default App
and here's the navbar code
import React, { Component } from 'react'
import styles from './Nav.module.css'
import {BrowserRouter as Router} from 'react-router-dom'
import {Link} from 'react-router-dom'
export class Nav extends Component {
render() {
return (
<Router>
<div className={styles.nav}>
<div className="container">
<div className={styles.navgrid}>
<img className={styles.image} src="/img/actualLogo#1x.svg" alt="?"/>
<ul className={styles.ultest}>
<li><Link to="/">Home</Link></li>
<li><Link to="/updates">Updates</Link></li>
<li><Link to="/author">Author</Link></li>
</ul>
</div>
</div>
</div>
</Router>
)
}
}
export default Nav
I'm assuming it's because it's not on the same <Router></Router> but does anyone have a way to make this work?
You're creating a new <Router>, which has no defined <Route> elements within it. Remove that router:
export class Nav extends Component {
render() {
return (
<div className={styles.nav}>
<div className="container">
<div className={styles.navgrid}>
<img className={styles.image} src="/img/actualLogo#1x.svg" alt="?"/>
<ul className={styles.ultest}>
<li><Link to="/">Home</Link></li>
<li><Link to="/updates">Updates</Link></li>
<li><Link to="/author">Author</Link></li>
</ul>
</div>
</div>
</div>
)
}
}
Each component doesn't need its own <Router>, as long as they're all contained within (descendants of) the one defined in <App>.
Total Newbie in React and most of my learning is done through experimentation.
I have the following components:
App.js
import React, { Component } from 'react';
// Libraries and Utilities
import { BrowserRouter, Switch, Route } from 'react-router-dom';
// Components
import Layout from './components/layout/Layout';
import Home from './components/home/Home';
import Login from './components/login/Login';
class App extends Component {
static displayName = App.name;
render() {
return (
<BrowserRouter basename='/myapp>
<Layout>
<Switch>
<Route path="/" exact component={Home} />
<Route path='/login' component={Login} />
<Route path='/admin' component={Admin} />
</Switch>
</Layout>
</BrowserRouter>
);
}
}
export default App;
Layout.js
import React, { Component } from 'react';
import NavMenu from '../navigation/NavMenu';
class Layout extends Component {
render() {
return (
<div className="container-fluid">
<div className="row">
<NavMenu />
</div>
<div className="main layout">
{this.props.children}
</div>
<div className="row">
<Footer />
</div>
</div>
);
}
};
export default Layout;
NavMenu.js
import React, { Component } from 'react';
import { NavLink } from "react-router-dom";
import logo from '../../assets/logo.svg';
class navigation extends Component {
constructor(props) {
super(props)
this.state = {
loggedIn: false
}
}
render() {
return (
<div className="row">
<nav className="navbar navbar-expand navbar-dark bg-primary fixed-top">
<a className="navbar-brand" href="/">
<img src={logo} width="250" height="70" alt="" />
</a>
<div className="collapse navbar-collapse">
<ul className="navbar-nav mr-auto">
<li className="nav-item" to={'/'}>
<NavLink exact={true} className="navbar-brand" activeClassName='active' to='/'>Home</NavLink>
</li>
<li className="nav-item" to={'/admin1'}>
<NavLink exact={true} className="navbar-brand" activeClassName='active' to='/admin1'>Admin 1</NavLink>
</li>
<li className="nav-item" to={'/admin2'}>
<NavLink exact={true} className="navbar-brand" activeClassName='active' to='/admin1'>Admin 2</NavLink>
</li>
</ul>
<ul className="navbar-nav">
<li className="nav-item">
<NavLink exact={true} className="navbar-brand" activeClassName='active' to='/login'>
<i className="fa fa-sign-in" aria-hidden="true"></i>
</NavLink>
</li>
</ul>
</div>
</nav>
</div>
)
};
};
export default navigation;
Login .js
import React, { Component } from 'react';
class login extends Component {
constructor(props) {
super(props)
this.state = {
loginModel: {
UserName: '',
Password: ''
}
}
this.handleInputChange = this.handleInputChange.bind(this)
this.handleSubmit = this.handleSubmit.bind(this)
}
handleInputChange(event) {
const target = event.target
const value = target.type === 'checkbox' ? target.checked : target.value
const name = target.name
this.setState(prevState => ({
loginModel: {
...prevState.loginModel,
[name]: value
}
}))
}
handleSubmit(event) {
// At This Stage, I perform an API Call (via axios) and I get the Response Data.
const url = 'some url'
axios.post(url, this.state.loginModel).then((response) => {
if (response.status === 200) {
// Get token from response to be used in authenticated api calls.
const responseData = response.data
let authToken = responseData.token
console.log('authToken', authToken)
swal({
title: "My Application",
text: "Logon Successful.",
icon: "success"
}).then((value) => {
// Go to the Admin Home.
const path = '/admin'
this.props.history.push(path);
})
}
}, (err) => {
console.log(err.response)
const msg = err.response.data.message
const icon = err.response.data.icon
swal({
title: "My Application",
text: msg,
icon: icon
})
})
)
event.preventDefault();
}
componentDidMount() {
}
render() {
return (
<form className="form-signin" onSubmit={this.handleSubmit} >
<h3>Sign In</h3>
<div className="form-group">
<label>Username</label>
<input type="text" className="form-control" autoComplete="off"
id="input-username" name="UserName"
value={this.state.loginModel.UserName}
onChange={this.handleInputChange}
placeholder="Enter Username" />
</div>
<div className="form-group">
<label>Password</label>
<input type="password" className="form-control" autoComplete="off"
id="input-password" name="Password"
value={this.state.loginModel.Password}
onChange={this.handleInputChange}
placeholder="Enter Password" />
</div>
<button type="submit" className="btn btn-primary btn-block">Submit</button>
</form>
)
}
}
export default login;
Home.js
import React from 'react';
import { NavLink } from "react-router-dom";
const home = (props) => {
return (
<div className="container-fluid">
<div className="fill">
<div className="row">
<div className="col-md-4 col-sm-12">
<div className="card">
<div className="card-body flex-fill">
<h5 className="card-title">Info 1</h5>
<p className="card-text">
Details about Info 1
</p>
</div>
<div className="card-footer">
<NavLink exact={true} className="btn btn-primary btn-block" to='/info1'>Start</NavLink>
</div>
</div>
</div>
<div className="col-md-4 col-sm-12">
<div className="card">
<div className="card-body flex-fill">
<h5 className="card-title">Info 2</h5>
<p className="card-text">
Details about Info 2
</p>
</div>
<div className="card-footer">
<NavLink exact={true} className="btn btn-info btn-block" to='/info2'>Browse</NavLink>
</div>
</div>
</div>
<div className="col-md-4 col-sm-12">
<div className="card">
<div className="card-body flex-fill">
<h5 className="card-title">Info 3</h5>
<p className="card-text">
Details about Info 3
</p>
</div>
<div className="card-footer">
<NavLink exact={true} className="btn btn-success btn-block" to='/info3'>View</NavLink>
</div>
</div>
</div>
</div>
</div>
</div>
);
};
export default home;
My approach is quite simple. The application shows the Home component on initial load.
In the Navmenu, I have a link that navigates me to the Login screen.
In the Login screen, I have a login form where I am able to validate the user name and password via an API call.
I have multiple questions as I am still learning, but adding them here altogether as I feel it is all related.
Questions:
In my NavMenu component, I want to hide the admin1 and admin2 when on
initial load, and show it when the login is successful in the Login
component.
I want to prevent user from going to the route /admin1 and
/admin2 unless they are logged in. I am trying to read Protected
Routes but I am unable to get the hang of it as of yet.
In my Login screen, after successful login, one of the return value of the API
call is an API Key I can use for authorized calls. How can I make
that available such that I can access it from anywhere I perform an
API call.
I hope I provided enough context on what I am trying to achieve here. I know I need to brush up further my skills on how data communication between React happens.
Update: Been reading about Hooks, but I am unsure how to implement it here. Would I need to convert my JS files to use functional approach rather than class structure (ES6)?
Gracias.
I use redux for checking if use if logged in or not.
So when app start before show anything I check this.
and then I have privateRoute.
import React from "react";
import { Redirect, Route } from "react-router-dom";
import { useSelector } from "react-redux";
function PrivateRoute({ component: Component, ...props }) {
const isAuthenticated = useSelector(state => state.User.isLogin);
return (
<Route
render={props =>
isAuthenticated ? (
<Component {...props} />
) : (
<Redirect
to={{
pathname: "/login",
state: { from: props.location }
}}
/>
)
}
{...props}
/>
);
}
export default PrivateRoute;
and define IsAuthenticated component to redirect home page if user is already logged in:
import React from "react";
import { Redirect, Route } from "react-router-dom";
import { useSelector } from "react-redux";
function IsAuthenticated({ component: Component, ...props }) {
const isAuthenticated = useSelector(state => state.User.isLogin)
return (
<Route
{...props}
render={props =>
!isAuthenticated ? (
<Component {...props} />
) : (
<Redirect
to={{
pathname: "/",
state: { from: props.location }
}}
/>
)
}
/>
);
}
export default IsAuthenticated;
and define my routes here if user must authenticated to see them:
<Router>
<Switch>
{privateRoutes.map(({ path, component: Component }, idx) => (
<PrivateRoute
key={idx}
exact
path={path}
component={() => (
<SideNav>
<Component />
</SideNav>
)}
/>
))}
<IsAuthenticated exact path="/login" component={LoginPage} />
</Switch>
</Router>
here I use SideNav in my pages, you can use redux state in your Navbar component and with checking that you can show or hide whatever you want.
Or you can define two layout for your two types of your pages.
If you don't want to use redux, you can define state in App.js and pass it to your component or use react context.
I hope I helped you in your question.
For some reason, my web app is not directing to the component whenever I go to the parameters. Specifically, it is not going to the Battle component.
Here is what the navigation looks:
import React from 'react';
import Header from './components/Header/Header';
import SelectPlayers from './pages/SelectPlayers/SelectPlayers';
import Popular from './pages/Popular/Popular'
import Battle from './pages/Battle/Battle'
import { BrowserRouter as Router, Route, Link, Switch } from "react-router-dom";
function App() {
return (
<Router>
<div className={'flex flex-column'}>
<Header />
<Switch>
<Route exact path={'/'} component={Popular}/>
<Route exact path={'/battle/select-player'} component={SelectPlayers} />
<Route exact path={'/results?playerOne=:playerOne&playerTwo=:playerTwo'} component={Battle} />
</Switch>
</div>
</Router>
);
}
export default App;
In the SelectPlayers component, whenever the user presses a button it runs:
import React, {useState} from 'react';
function SelectPlayers(props) {
const [playerOne, setPlayerOne] = useState('');
const [playerTwo, setPlayerTwo] = useState('');
function setPlayerName(event, player){
if (player === 1){
setPlayerOne(event.target.value)
} else if (player === 2) {
setPlayerTwo(event.target.value)
}
}
function goToBattle(event){
event.preventDefault();
props.history.push(`/results?playerOne=${playerOne}&playerTwo=${playerTwo}`)
}
return (
<div className={'pa3 mh7-l mh7-m'}>
<div className="flex flex-column">
<div className={'mb1'}>
<h1 className={'mb0'}>Player One</h1>
<input onChange={(e) => setPlayerName(e, 1)} type="text" placeholder={'github username'} className={'input-reset pa1 w-100 h2 ba b--black br2'}/>
</div>
<div className="tc dark-red">
<h1>Versus</h1>
</div>
<div className={'mb3'}>
<h1 className={'mb0 mt0 tr'}>Player Two</h1>
<input onChange={(e) => setPlayerName(e, 2)} type="text" placeholder={'github username'} className={'input-reset pa1 w-100 h2 ba b--black br2'}/>
</div>
<div>
<button onClick={(e) => goToBattle(e)} className={'input-reset pa1 h2 fw1 bg-black white ba w-100 b--black br2'}>Battle</button>
</div>
</div>
</div>
);
}
export default SelectPlayers;
On the Battle component, I write some console.log stuff just to check if the Component loaded. However, whenever I go to that parameter, none of the code in my componentDidMount is running. I don't see any of the console.logs I wrote in componentDidMount in my developer console. Here is the component:
import React, {Component} from 'react';
class Battle extends Component {
constructor(props){
super(props)
}
componentDidMount() {
console.log('runngins');
console.log(this.props);
}
render() {
return (
<div className={'pa3 mh7-l mh7-m'}>
<div className="flex flex-column">
</div>
</div>
);
}
}
export default Battle;
You can see the code at this repo: https://github.com/tarekgabarin/github_compete
It would be greatly appreciated if anyone helped me.
As per your new comment that code is working without queryset, looks like there is some problem with your queryset parameters.
As suggested in comment box, don't define Router with queryset.
<Switch>
<Route exact path={'/'} component={Popular}/>
<Route exact path={'/battle/select-player'} component={SelectPlayers} />
<Route exact path={'/results'} component={Battle} />
</Switch>
In your SelectPlayers component, navigate to next page with queryset.
props.history.push("/results?playerOne=" +playerOne+ "&playerTwo=" +playerTwo)
On Battle component, use (query-string) to read the parameter. For example:
const values = queryString.parse(this.props.location.search);
const player_one = values.playerOne
const player_two = values.playerTwo
Please note that my above code is not tested.
Thanks
I want to make a very basic reactjs based application with server-side rendering to make sure the first load is quick and also to make sure all crawlers can access my content.
For this, I first followed the official reactjs docs and then looked for a basic routing option for my need. I ended up using React Router. Now, I want to enable server-side rendering for it without having to completely change this to use Redux or something. What would be the most basic/simplest way to do this.
The code in its present condition is as below:
import React from 'react'
import ReactDOM from 'react-dom';
import { BrowserRouter as Router, Route, Link } from 'react-router-dom'
import './index.css';
//Product Image Component
class ProductImage extends React.Component {
constructor(props) {
super(props);
this.state = {
value: 'https://rukminim1.flixcart.com/image/832/832/j8bxvgw0-1/mobile/g/j/z/mi-mi-mix-2-na-original-imaeydgnjzmvxwfz.jpeg?q=70',
alt: 'the product image'
};
}
render() {
return (
<div className="ProductImageContainer">
<img className="ProductImage"
src={this.state.value}
alt={this.state.alt}
/>
</div>
);
}
}
//Single Product Component
class ProductSingle extends React.Component {
render() {
return (
<div className="single">
<ProductImage />
</div>
);
}
}
//Homepage
class Home extends React.Component {
render() {
return (
<div>
<h2>Home</h2>
<p>The content is here.</p>
</div>
);
}
}
//About Page
class About extends React.Component {
render() {
return (
<div>
<h2>About</h2>
<p>The content is here.</p>
</div>
);
}
}
//Topic component
class Topic extends React.Component {
render() {
const {match} = this.props;
return (
<div>
<h3>{match.params.topicId}</h3>
</div>
);
}
}
//Topics component
class Topics extends React.Component {
render() {
const {match} = this.props;
return (
<div>
<h2>Topics</h2>
<ul>
<li>
<Link to={`${match.url}/rendering`}>
Rendering with React
</Link>
</li>
<li>
<Link to={`${match.url}/components`}>
Components
</Link>
</li>
<li>
<Link to={`${match.url}/props-v-state`}>
Props v. State
</Link>
</li>
</ul>
<Route path={`${match.url}/:topicId`} component={Topic}/>
<Route exact path={match.url} render={() => (
<h3>Please select a topic.</h3>
)}/>
</div>
);
}
}
//Main App component
class App extends React.Component {
render() {
return (
<Router>
<div>
<ul className="menu">
<li><Link to="/">Home</Link></li>
<li><Link to="/about">About</Link></li>
<li><Link to="/topics">Topics</Link></li>
</ul>
<Route exact path="/" component={Home}/>
<Route path="/about" component={ProductSingle}/>
<Route path="/topics" component={Topics}/>
</div>
</Router>
);
}
}
ReactDOM.render(
<App />,
document.getElementById('root')
);
https://github.com/gzoreslav/react-redux-saga-universal-application/blob/master/README.md please check my repo. I used redux and redux-saga, but I guess you may replace them with another flux that you need
The problem is that when I try to copy a route directly I get this error:
Cannot Get / home
But when I navigate with the menu items I usually render the views, I have tried several ways as browserHistory to achieve that effect but I do not succeed, I wonder, if react-router-dom does not allow navigation directly in the URL or is it an error in my code:
// Dependencies
import React, { Component} from 'react'
import { render } from 'react-dom'
import { BrowserRouter as Router, Route, browserHistory, Link} from 'react-router-dom'
//components
class App extends Component{
render(){
return(
<div>
<h1>App!</h1>
<ul>
<li><Link to="/home"> Home</Link></li>
<li><Link to="/about"> About </Link></li>
<li><Link to="/contact"> Contact </Link></li>
</ul>
</div>
)
}
}
class Home extends Component {
render() {
return(
<h2>Home Page!</h2>
)
}
}
class About extends Component{
render() {
return(
<h2>About Page!</h2>
)
}
}
class Contact extends Component {
render() {
return(
<h2>Contact Page!</h2>
)
}
}
// routes
render(
<Router history={browserHistory}>
<div>
<Route component={App} path="/" />
<Route component={Home} path="/home" />
<Route component={About} path="/about" />
<Route component={Contact} path="/contact" />
</div>
</Router>,
document.getElementById('app')
);
I have solved it! for those who have the same error, I share what I did; to see the problem if it was from the server so I had to configure webpack with "historyApiFallback: true" or put "--historyApiCallback" in the script of webpack dev server in the package.json luck :)