How to use React Router

#react #javascript #webdev

In this post, I will show you how to include React Router in your react project.

It's easy to use and it's great for improving the navigation experience.👌🏽

Here's a demo of a simple navbar (and the button in the About page that redirects back to Home):

Now let's see how to get started with React Router.

Installation

Install react-router-dom
Note: Make sure that you're already working on a create-react-app before adding it to your project

npm install react-router-dom

Include the Router

Wrap your <App /> component with <BrowserRouter />
Add each <Route /> with its path and respective component
Wrap <Switch /> around your routes. Switch will start looking for a matching route and the exact attribute will make sure that it matches exactly what we want

The <Navbar /> component will take care of the <NavLink />, more on this below.

import React from 'react';
import {BrowserRouter, Switch, Route} from 'react-router-dom';
import About from './About';
import Home from './Home'; 
import Navbar from './Navbar'; 

function App() {
  return (
      <BrowserRouter>
        <Navbar /> 

        <Switch>
          <Route exact path="/" component={Home}/>
          <Route exact path="/about" component={About}/>
        </Switch>

      </BrowserRouter>
  );
}

export default App;

Add NavLink

<NavLink /> will act as each Navbar link, which is using client-side routing (exclusive of single-page applications)
<NavLink /> comes with the activeClassName property, which will allow us to add CSS to active/non-active links

import React from 'react';
import {NavLink} from 'react-router-dom'
import './App.css'; 

export default function Navbar() {
    return (
        <div>
            <NavLink 
                activeClassName="selected"
                className="not-selected"
                to="/"
                exact
                >HOME</NavLink>
            <NavLink 
                to="/about"
                activeClassName="selected"
                className="not-selected"
                exact
                >ABOUT
            </NavLink>
        </div>
    )
}

The `useHistory` hook

What does it do? It provides access to the history prop that you may use to navigate
In other words, useHistory can be used for redirecting which is very convenient!

import React from 'react'; 
import {useHistory} from 'react-router-dom'; 

export default function About() {
    const history = useHistory()

    const handleClick = () => {
        history.push('/')
    }

    return (
        <div>
            <h1>ABOUT</h1>
            <p>THIS IS THE ABOUT PAGE</p>
            <div>
                <button 
                    onClick={handleClick}>
                    Back to Home
                </button>
            </div>
        </div>
    )
}

And that's it! 😬

Top comments (4)

Lijo M Loyid • Nov 1 '20

This is awesome. You have summarized all the basics of React Router in a concise manner. It would be great if you could also include URL Parameters nested routes also