Auth0 SDK for React Single Page Applications

@auth0/auth0-react

Auth0 SDK for React Single Page Applications (SPA).

Documentation

• API Reference
• Quickstart Guide

Installation

Using npm

npm install @auth0/auth0-react

Using yarn

yarn add @auth0/auth0-react

Getting Started

Configure the SDK by wrapping your application in Auth0Provider:

// src/index.js
import React from 'react';
import ReactDOM from 'react-dom';
import { Auth0Provider } from '@auth0/auth0-react';
import App from './App';

ReactDOM.render(
  <Auth0Provider
    domain="YOUR_AUTH0_DOMAIN"
    clientId="YOUR_AUTH0_CLIENT_ID"
    redirectUri={window.location.origin}
  >
    <App />
  </Auth0Provider>,
  document.getElementById('app')
);

Use the useAuth0 hook in your components to access authentication state (isLoading, isAuthenticated and user) and authentication methods (loginWithRedirect and logout):

// src/App.js
import React from 'react';
import { useAuth0 } from '@auth0/auth0-react';

function App() {
  const {
    isLoading,
    isAuthenticated,
    error,
    user,
    loginWithRedirect,
    logout,
  } = useAuth0();

  if (isLoading) {
    return <div>Loading...</div>;
  }
  if (error) {
    return <div>Oops... {error.message}</div>;
  }

  if (isAuthenticated) {
    return (
      <div>
        Hello {user.name}{' '}
        <button onClick={() => logout({ returnTo: window.location.origin })}>
          Log out
        </button>
      </div>
    );
  } else {
    return <button onClick={loginWithRedirect}>Log in</button>;
  }
}

export default App;

Use with a Class Component

Use the withAuth0 higher order component to add the auth0 property to Class components:

import React, { Component } from 'react';
import { withAuth0 } from '@auth0/auth0-react';

class Profile extends Component {
  render() {
    // `this.props.auth0` has all the same properties as the `useAuth0` hook
    const { user } = this.props.auth0;
    return <div>Hello {user.name}</div>;
  }
}

export default withAuth0(Profile);

Protect a Route

Protect a route component using the withAuthenticationRequired higher order component. Visits to this route when unauthenticated will redirect the user to the login page and back to this page after login:

import React from 'react';
import { withAuthenticationRequired } from '@auth0/auth0-react';

const PrivateRoute = () => <div>Private</div>;

export default withAuthenticationRequired(PrivateRoute, {
  // Show a message while the user waits to be redirected to the login page.
  onRedirecting: () => <div>Redirecting you to the login page...</div>,
});

Note If you are using a custom router, you will need to supply the Auth0Provider with a custom onRedirectCallback method to perform the action that returns the user to the protected page. See examples for react-router, Gatsby and Next.js.

Call an API

Call a protected API with an Access Token:

import React, { useEffect, useState } from 'react';
import { useAuth0 } from '@auth0/auth0-react';

const Posts = () => {
  const { getAccessTokenSilently } = useAuth0();
  const [posts, setPosts] = useState(null);

  useEffect(() => {
    (async () => {
      try {
        const token = await getAccessTokenSilently({
          audience: 'https://api.example.com/',
          scope: 'read:posts',
        });
        const response = await fetch('https://api.example.com/posts', {
          headers: {
            Authorization: `Bearer ${token}`,
          },
        });
        setPosts(await response.json());
      } catch (e) {
        console.error(e);
      }
    })();
  }, [getAccessTokenSilently]);

  if (!posts) {
    return <div>Loading...</div>;
  }

  return (
    <ul>
      {posts.map((post, index) => {
        return <li key={index}>{post}</li>;
      })}
    </ul>
  );
};

export default Posts;

For a more detailed example see how to create a useApi hook for accessing protected APIs with an access token.

Contributing

We appreciate feedback and contribution to this repo! Before you get started, please see the following:

• Auth0’s general contribution guidelines
• Auth0’s code of conduct guidelines
• This repo’s contribution guide

Support + Feedback

For support or to provide feedback, please raise an issue on our issue tracker.

Troubleshooting

For information on how to solve common problems, check out the Troubleshooting guide

Frequently Asked Questions

For a rundown of common issues you might encounter when using the SDK, please check out the FAQ.

Vulnerability Reporting

Please do not report security vulnerabilities on the public GitHub issue tracker. The Responsible Disclosure Program details the procedure for disclosing security issues.

What is Auth0?

Auth0 helps you to easily:

• Implement authentication with multiple identity providers, including social (e.g., Google, Facebook, Microsoft, LinkedIn, GitHub, Twitter, etc), or enterprise (e.g., Windows Azure AD, Google Apps, Active Directory, ADFS, SAML, etc.)
• Log in users with username/password databases, passwordless, or multi-factor authentication
• Link multiple user accounts together
• Generate signed JSON Web Tokens to authorize your API calls and flow the user identity securely
• Access demographics and analytics detailing how, when, and where users are logging in
• Enrich user profiles from other data sources using customizable JavaScript rules

Why Auth0?

Download Details:

Author: auth0

Source Code: https://github.com/auth0/auth0-react

#react #reactjs #javascript

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How native is React Native? | React Native vs Native App Development

If you are undertaking a mobile app development for your start-up or enterprise, you are likely wondering whether to use React Native. As a popular development framework, React Native helps you to develop near-native mobile apps. However, you are probably also wondering how close you can get to a native app by using React Native. How native is React Native?

In the article, we discuss the similarities between native mobile development and development using React Native. We also touch upon where they differ and how to bridge the gaps. Read on.

A brief introduction to React Native

Let’s briefly set the context first. We will briefly touch upon what React Native is and how it differs from earlier hybrid frameworks.

React Native is a popular JavaScript framework that Facebook has created. You can use this open-source framework to code natively rendering Android and iOS mobile apps. You can use it to develop web apps too.

Facebook has developed React Native based on React, its JavaScript library. The first release of React Native came in March 2015. At the time of writing this article, the latest stable release of React Native is 0.62.0, and it was released in March 2020.

Although relatively new, React Native has acquired a high degree of popularity. The “Stack Overflow Developer Survey 2019” report identifies it as the 8th most loved framework. Facebook, Walmart, and Bloomberg are some of the top companies that use React Native.

The popularity of React Native comes from its advantages. Some of its advantages are as follows:

• Performance: It delivers optimal performance.
• Cross-platform development: You can develop both Android and iOS apps with it. The reuse of code expedites development and reduces costs.
• UI design: React Native enables you to design simple and responsive UI for your mobile app.
• 3rd party plugins: This framework supports 3rd party plugins.
• Developer community: A vibrant community of developers support React Native.

Why React Native is fundamentally different from earlier hybrid frameworks

Are you wondering whether React Native is just another of those hybrid frameworks like Ionic or Cordova? It’s not! React Native is fundamentally different from these earlier hybrid frameworks.

React Native is very close to native. Consider the following aspects as described on the React Native website:

• Access to many native platforms features: The primitives of React Native render to native platform UI. This means that your React Native app will use many native platform APIs as native apps would do.
• Near-native user experience: React Native provides several native components, and these are platform agnostic.
• The ease of accessing native APIs: React Native uses a declarative UI paradigm. This enables React Native to interact easily with native platform APIs since React Native wraps existing native code.

Due to these factors, React Native offers many more advantages compared to those earlier hybrid frameworks. We now review them.

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What Is A Single-Page Application?

Single page web apps are an ideal choice when thinking about future web development. This architecture is a perfect choice for social networks stuff, SaaS platforms, or some close communities where SEO doesn’t matter.

#what is a single page application #single page application #single page application development

Download Android SDK Manager and SDK Tools

In this tutorial, we’ll read about the Android SDK Manager. We will see what is SDK manager in Android and why and how it is important for Android. So, SDK stands for Software Development Kit, which is a collection of software tools required. SDK basically helps Android to download tools and recent versions of Android. Every time a new Android version is released, along with it is released an SDK corresponding to it. This SDK must be installed by the developers for the devices.
What is SDK Manager?
A Software development kit is a set of tools required for the development of applications for Android. It also ensures that the progress of App development goes as flat as pancakes. We need SDK irrespective of the language we are using. Android SDK comes wrapped up with the Android Studio these days. An Android SDK separates the tools, platforms and other components into packages. These can be downloaded from the SDK Manager.

#android tutorials #android sdk manager #android sdk manager download #android sdk tools #android studio sdk manager #sdk download #sdk manager #sdk tools

How to Select and Hire the Best React JS and React Native Developers?

Since March 2020 reached 556 million monthly downloads have increased, It shows that React JS has been steadily growing. React.js also provides a desirable amount of pliancy and efficiency for developing innovative solutions with interactive user interfaces. It’s no surprise that an increasing number of businesses are adopting this technology. How do you select and recruit React.js developers who will propel your project forward? How much does a React developer make? We’ll bring you here all the details you need.

What is React.js?

Facebook built and maintains React.js, an open-source JavaScript library for designing development tools. React.js is used to create single-page applications (SPAs) that can be used in conjunction with React Native to develop native cross-platform apps.

React vs React Native

• React Native is a platform that uses a collection of mobile-specific components provided by the React kit, while React.js is a JavaScript-based library.
• React.js and React Native have similar syntax and workflows, but their implementation is quite different.
• React Native is designed to create native mobile apps that are distinct from those created in Objective-C or Java. React, on the other hand, can be used to develop web apps, hybrid and mobile & desktop applications.
• React Native, in essence, takes the same conceptual UI cornerstones as standard iOS and Android apps and assembles them using React.js syntax to create a rich mobile experience.

What is the Average React Developer Salary?

In the United States, the average React developer salary is $94,205 a year, or $30-$48 per hour, This is one of the highest among JavaScript developers. The starting salary for junior React.js developers is $60,510 per year, rising to $112,480 for senior roles.

* React.js Developer Salary by Country

• United States- $120,000
• Canada - $110,000
• United Kingdom - $71,820
• The Netherlands $49,095
• Spain - $35,423.00
• France - $44,284
• Ukraine - $28,990
• India - $9,843
• Sweden - $55,173
• Singapore - $43,801

In context of software developer wage rates, the United States continues to lead. In high-tech cities like San Francisco and New York, average React developer salaries will hit $98K and $114per year, overall.

However, the need for React.js and React Native developer is outpacing local labour markets. As a result, many businesses have difficulty locating and recruiting them locally.

It’s no surprise that for US and European companies looking for professional and budget engineers, offshore regions like India are becoming especially interesting. This area has a large number of app development companies, a good rate with quality, and a good pool of React.js front-end developers.

As per Linkedin, the country’s IT industry employs over a million React specialists. Furthermore, for the same or less money than hiring a React.js programmer locally, you may recruit someone with much expertise and a broader technical stack.

How to Hire React.js Developers?

• Conduct thorough candidate research, including portfolios and areas of expertise.
• Before you sit down with your interviewing panel, do some homework.
• Examine the final outcome and hire the ideal candidate.

Why is React.js Popular?

React is a very strong framework. React.js makes use of a powerful synchronization method known as Virtual DOM, which compares the current page architecture to the expected page architecture and updates the appropriate components as long as the user input.

React is scalable. it utilises a single language, For server-client side, and mobile platform.

React is steady.React.js is completely adaptable, which means it seldom, if ever, updates the user interface. This enables legacy projects to be updated to the most new edition of React.js without having to change the codebase or make a few small changes.

React is adaptable. It can be conveniently paired with various state administrators (e.g., Redux, Flux, Alt or Reflux) and can be used to implement a number of architectural patterns.

Is there a market for React.js programmers?
The need for React.js developers is rising at an unparalleled rate. React.js is currently used by over one million websites around the world. React is used by Fortune 400+ businesses and popular companies such as Facebook, Twitter, Glassdoor and Cloudflare.

Final thoughts:

As you’ve seen, locating and Hire React js Developer and Hire React Native developer is a difficult challenge. You will have less challenges selecting the correct fit for your projects if you identify growing offshore locations (e.g. India) and take into consideration the details above.

If you want to make this process easier, You can visit our website for more, or else to write a email, we’ll help you to finding top rated React.js and React Native developers easier and with strives to create this operation

#hire-react-js-developer #hire-react-native-developer #react #react-native #react-js #hire-react-js-programmer

React Sidebar Example | How To Create Sidebar Component In React

The React Sidebar component is a responsive expandable and collapsible container area that holds primary and secondary information placed alongside the main content of a webpage.

We use a library called react-burger-menu and also create a sidebar component using the  Material UI library. This library will help us to build a sidebar menu component in React.js. We are not using  Redux so that we will build with plain React.js.

Table Of Contents

• Step 1: Install React.js
• Step 2: Create a Sidebar Menu
• Step 3: Import the sidebar.js file inside an App.js file.
• Create React Sidebar Component using Material UI
• Write the Sidebar.js component.

---

Step 1: Install React.js

Type the following command to install React.js.

npx create-react-app sidebar

Go inside the folder and open it in the VSCode editor.

cd sidebar
code .

Now, install the react-burger-menu library using the following command.

npm install react-burger-menu --save

# or

yarn add react-burger-menu

Step 2: Create a Sidebar Menu

In this sidebar component, we can add a list of items displayed inside the sidebar. Here, we will make use of react-burger-menu as well.

import React from 'react';
import { slide as Menu } from 'react-burger-menu';

export default props => {
  return (
    <Menu>
      <a className="menu-item" href="/">
        Home
      </a>

      <a className="menu-item" href="/laravel">
        Laravel
      </a>

      <a className="menu-item" href="/angular">
        Angular
      </a>

      <a className="menu-item" href="/react">
        React
      </a>

      <a className="menu-item" href="/vue">
        Vue
      </a>

      <a className="menu-item" href="/node">
        Node
      </a>
    </Menu>
  );
};

So, here we have imported the slide component from the react-burger menu. 

Step 3: Import the sidebar.js file inside an App.js file.

Write the following code inside an App.js file.

import React from 'react';
import SideBar from './sidebar';

import './App.css';

export default function App() {
  return (
    <div id="App">
      <SideBar />
      <div id="page-wrap">
        <h1>AppDividend</h1>
        <h2>Check out our tutorials the side menubar</h2>
      </div>
    </div>
  );
}

Now, finally, add the CSS code inside the App.css file.

body {
  margin: 0;
}

#App {
  font-family: sans-serif;
  height: 100vh;
}

#page-wrap {
  text-align: center;
  overflow: auto;
}

.bm-item {
  display: inline-block;
  text-decoration: none;
  margin-bottom: 10px;
  color: #d1d1d1;
  transition: color 0.2s;
}

.bm-item:hover {
  color: white;
}

.bm-burger-button {
  position: fixed;
  width: 36px;
  height: 30px;
  left: 36px;
  top: 36px;
}

.bm-burger-bars {
  background: #373a47;
}

.bm-cross-button {
  height: 24px;
  width: 24px;
}

.bm-cross {
  background: #bdc3c7;
}

.bm-menu {
  background: #373a47;
  padding: 2.5em 1.5em 0;
  font-size: 1.15em;
}

.bm-morph-shape {
  fill: #373a47;
}

.bm-item-list {
  color: #b8b7ad;
}

.bm-overlay {
  background: rgba(0, 0, 0, 0.3);
}

After saving the file, go to the terminal and start the React development server.

npm start

So at this URL: http://localhost:3000/. You can see that our React.js project is up and running.

To try out our different animations, merely change the imported slide at the top of our sidebar.js file to any other animations, such as bubble. To use a different animation, you can substitute slides with any following.

•  slide
• stack
• elastic
• bubble
• push
• pushRotate
• scaleDown
• scaleRotate
• fallDown
• reveal

Properties

Some animations require certain other elements to be on your page.

Page Wrapper

An element wrapping the rest of the content on your page.

<Menu pageWrapId={ "page-wrap" } />
<main id="page-wrap">
  .
  .
  .
</main>

Outer container

An element containing everything, including the menu component.

<div id="outer-container">
  <Menu pageWrapId={ "page-wrap" } outerContainerId={ "outer-container" } />
  <main id="page-wrap">
    .
    .
    .
  </main>
</div>

Create React Sidebar Component using Material UI

Let’s create a simple sidebar component in React using Material UI.

First, install the following material package using Yarn or NPM.

yarn  add @material-ui/core @material-ui/icons

# or

npm install @material-ui/core @material-ui/icons

Once that is installed, we need to think of it as a base structure in the user interface that our sidebar will be built upon.

A solution is to use an unordered list (<ul>) element that renders the list items (<li>).

We will import List and ListItem from @material-ui/core library since the List component is essentially the ul element, and the ListItem component is essentially the li.

Let’s start off hardcoding the couple of items in the sidebar to visualize how this might look like to boost our confidence. Sometimes a little extra confidence can help improve our productivity:

Now, create a folder inside the src folder called components.

The next step is to write the following code inside the src >> components >> Sidebar.js file.

Write the following code inside that file.

import React from 'react'

function Sidebar() {
  return null
}

Now, import the component inside the src >> App.js file.

import React from 'react';
import './App.css';

import Sidebar from './components/Sidebar';

 function App() {
    return (
      <div>
        <Sidebar items={items}/>
      </div>
    );
  }

Now, we add the items which we will display in the sidebar. Let’s take five elements.

Write the following code inside the App.js file.

import React from 'react';
import './App.css';

import Sidebar from './components/Sidebar';

const items = [
  { name: 'home', label: 'Home' },
  { name: 'sales', label: 'Sales' },
  { name: 'orders', label: 'Orders' },
  { name: 'billing', label: 'Billing' },
  { name: 'settings', label: 'Settings' }]

function App() {
  return (
    <div class="sidebar">
      <Sidebar items={items} />
    </div>
  );
}

You might have noticed that our sidebar is just too dang big! *Side*bars usually take up one side of the screen. So what we are going to do is shrink its width to a suitable size. We will go ahead and put a max-width of 200px on it. So we’re going to create a div element that wraps our List component.

We create another div element instead of directly applying the styles on the List component because we don’t want to make List responsible for the width size.

This way, in the future, we can choose to abstract the List into a reusable sidebar component where it can adapt to any size depending on the size of the parent element.

So, add one css class inside the App.css file.

.sidebar {
  max-width: 240px;
  border: 1px solid rgba(0, 0, 0, 0.1);
}

Material-UI uses its CSS styling mechanism using the CSS-in-JS approach. But we will stick to regular CSS in this article to keep things unnecessarily complicated.

Write the Sidebar.js component.

Okay, now our final step is to add the following code inside the Sidebar.js file.

import React from 'react'
import List from '@material-ui/core/List'
import ListItem from '@material-ui/core/ListItem'
import ListItemText from '@material-ui/core/ListItemText'

function Sidebar({ items }) {
  return (
    <div className="sidebar">
      <List disablePadding dense>
        {items.map(({ label, name, ...rest }) => (
          <ListItem key={name} button {...rest}>
            <ListItemText>{label}</ListItemText>
          </ListItem>
        ))}
      </List>
    </div>
  )
}

Save the file and see the output. 

React sidebar component finished

Happy Coding!!!

#react.js #react #react sidebar