How to Setup Authentication with React and Rails

It didn’t seem evident at the time, but it really was quite simple to set up authentication, or at least the basics of it. As most people are aware, as your application grows, it becomes increasingly more challenging to balance authentication.

I would usually recommend a third-party authentication or even a backend API like Firebase or Auth0, but for now, if you’re just building a small application, this will do.

First things first, I will assume that you’re pretty familiar with generators if you’ve made it far enough to be looking up authentication. Run the npx create-react-app package runner for React and Rails new generator for Rails. Then in your Rails gems file will want to add and install:

#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.

#android app #frontend #ios app #mobile app development #benefits of react native #is react native good for mobile app development #native vs #pros and cons of react native #react mobile development #react native development #react native experience #react native framework #react native ios vs android #react native pros and cons #react native vs android #react native vs native #react native vs native performance #react vs native #why react native #why use react native

React-rails: integrate React.js with Rails Views and Controllers

React-Rails  

React-Rails is a flexible tool to use React with Rails. The benefits:

• Automatically renders React server-side and client-side
• Supports Webpacker 4.x, 3.x, 2.x, 1.1+
• Supports Sprockets 4.x, 3.x, 2.x
• Lets you use JSX, ES6, TypeScript, CoffeeScript 

Get started with Webpacker

Alternatively, get started with Sprockets

Webpacker provides modern JS tooling for Rails. Here are the listed steps for integrating Webpacker and Rails-React with Rails:

1) Create a new Rails app:

$ rails new my-app
$ cd my-app

2) Add react-rails to your Gemfile:

gem 'react-rails'

Note: On rails versions < 6.0, You need to add gem 'webpacker' to your Gemfile in step 2 above.

3) Now run the installers:

Rails 6.x and 5.x:

$ bundle install
$ rails webpacker:install         # OR (on rails version < 5.0) rake webpacker:install
$ rails webpacker:install:react   # OR (on rails version < 5.0) rake webpacker:install:react
$ rails generate react:install

This gives you:

• app/javascript/components/ directory for your React components
• ReactRailsUJS setup in app/javascript/packs/application.js
• app/javascript/packs/server_rendering.js for server-side rendering

Note: On rails versions < 6.0, link the JavaScript pack in Rails view using javascript_pack_tag helper:

<!-- application.html.erb in Head tag below turbolinks -->
<%= javascript_pack_tag 'application' %>

4) Generate your first component:

$ rails g react:component HelloWorld greeting:string

5) You can also generate your component in a subdirectory:

$ rails g react:component my_subdirectory/HelloWorld greeting:string

Note: Your component is added to app/javascript/components/ by default.

Note: If your component is in a subdirectory you will append the directory path to your erb component call.

Example:

<%= react_component("my_subdirectory/HelloWorld", { greeting: "Hello from react-rails." }) %>

6) Render it in a Rails view:

<!-- erb: paste this in view -->
<%= react_component("HelloWorld", { greeting: "Hello from react-rails." }) %>

7) Lets Start the app:

$ rails s

output: greeting: Hello from react-rails", inspect webpage in your browser too see change in tag props.

Component name

The component name tells react-rails where to load the component. For example:

react_component call	component require
react_component("Item")	require("Item")
react_component("items/index")	require("items/index")
react_component("items.Index")	require("items").Index
react_component("items.Index.Header")	require("items").Index.Header

This way, you can access top-level, default, or named exports.

The require.context inserted into packs/application.js is used to load components. If you want to load components from a different directory, override it by calling ReactRailsUJS.useContext:

var myCustomContext = require.context("custom_components", true)
var ReactRailsUJS = require("react_ujs")
// use `custom_components/` for <%= react_component(...) %> calls
ReactRailsUJS.useContext(myCustomContext)

If require fails to find your component, ReactRailsUJS falls back to the global namespace, described in Use with Asset Pipeline.

File naming

React-Rails supports plenty of file extensions such as: .js, .jsx.js, .js.jsx, .es6.js, .coffee, etcetera! Sometimes this will cause a stumble when searching for filenames.

Component File Name	react_component call
app/javascript/components/samplecomponent.js	react_component("samplecomponent")
app/javascript/components/sample_component.js	react_component("sample_component")
app/javascript/components/SampleComponent.js	react_component("SampleComponent")
app/javascript/components/SampleComponent.js.jsx	Has to be renamed to SampleComponent.jsx, then use react_component("SampleComponent")

Typescript support

If you want to use React-Rails with Typescript, simply run the installer and add @types:

$ bundle exec rails webpacker:install:typescript
$ yarn add @types/react @types/react-dom

Doing this will allow React-Rails to support the .tsx extension. Additionally, it is recommended to add ts and tsx to the server_renderer_extensions in your application configuration:

config.react.server_renderer_extensions = ["jsx", "js", "tsx", "ts"]

Test component

You can use assert_react_component to test component render:

app/views/welcome/index.html.erb

<%= react_component("HelloWorld", { greeting: "Hello from react-rails.", info: { name: "react-rails" } }, { class: "hello-world" }) %>

class WelcomeControllerTest < ActionDispatch::IntegrationTest
  test 'assert_react_component' do
    get "/welcome"
    assert_equal 200, response.status

    # assert rendered react component and check the props
    assert_react_component "HelloWorld" do |props|
      assert_equal "Hello from react-rails.", props[:greeting]
      assert_equal "react-rails", props[:info][:name]
      assert_select "[class=?]", "hello-world"
    end

    # or just assert component rendered
    assert_react_component "HelloWorld"
  end
end

Use with Asset Pipeline

react-rails provides a pre-bundled React.js & a UJS driver to the Rails asset pipeline. Get started by adding the react-rails gem:

gem 'react-rails'

And then install the react generator:

$ rails g react:install

Then restart your development server.

This will:

• add some //= requires to application.js
• add a components/ directory for React components
• add server_rendering.js for server-side rendering

Now, you can create React components in .jsx files:

// app/assets/javascripts/components/post.jsx

window.Post = createReactClass({
  render: function() {
    return <h1>{this.props.title}</h1>
  }
})

// or, equivalent:
class Post extends React.Component {
  render() {
    return <h1>{this.props.title}</h1>
  }
}

Then, you can render those components in views:

<%= react_component("Post", {title: "Hello World"}) %>

Components must be accessible from the top level, but they may be namespaced, for example:

<%= react_component("Comments.NewForm", {post_id: @post.id}) %>
<!-- looks for `window.Comments.NewForm` -->

Custom JSX Transformer

react-rails uses a transformer class to transform JSX in the asset pipeline. The transformer is initialized once, at boot. You can provide a custom transformer to config.react.jsx_transformer_class. The transformer must implement:

• #initialize(options), where options is the value passed to config.react.jsx_transform_options
• #transform(code_string) to return a string of transformed code

react-rails provides two transformers, React::JSX::BabelTransformer (which uses ruby-babel-transpiler) and React::JSX::JSXTransformer (which uses the deprecated JSXTransformer.js).

Transform Plugin Options

To supply additional transform plugins to your JSX Transformer, assign them to config.react.jsx_transform_options

react-rails uses the Babel version of the babel-source gem.

For example, to use babel-plugin-transform-class-properties :

config.react.jsx_transform_options = {
  optional: ['es7.classProperties']
}

React.js versions

//= require react brings React into your project.

By default, React's [development version] is provided to Rails.env.development. You can override the React build with a config:

# Here are the defaults:
# config/environments/development.rb
MyApp::Application.configure do
  config.react.variant = :development
end

# config/environments/production.rb
MyApp::Application.configure do
  config.react.variant = :production
end

Be sure to restart your Rails server after changing these files. See VERSIONS.md to learn which version of React.js is included with your react-rails version. In some edge cases you may need to bust the sprockets cache with rake tmp:clear

View Helper

react-rails includes a view helper and an unobtrusive JavaScript driver which work together to put React components on the page.

The view helper (react_component) puts a div on the page with the requested component class & props. For example:

<%= react_component('HelloMessage', name: 'John') %>
<!-- becomes: -->
<div data-react-class="HelloMessage" data-react-props="{&quot;name&quot;:&quot;John&quot;}"></div>

On page load, the react_ujs driver will scan the page and mount components using data-react-class and data-react-props.

The view helper's signature is:

react_component(component_class_name, props={}, html_options={})

• component_class_name is a string which identifies a component. See getConstructor for details.
• props is either:
  • an object that responds to #to_json; or
  • an already-stringified JSON object (see JBuilder note below).
• html_options may include:
  • tag: to use an element other than a div to embed data-react-class and data-react-props.
  • prerender: true to render the component on the server.
  • camelize_props to transform a props hash
  • **other Any other arguments (eg class:, id:) are passed through to content_tag.

Custom View Helper

react-rails uses a "helper implementation" class to generate the output of the react_component helper. The helper is initialized once per request and used for each react_component call during that request. You can provide a custom helper class to config.react.view_helper_implementation. The class must implement:

• #react_component(name, props = {}, options = {}, &block) to return a string to inject into the Rails view
• #setup(controller_instance), called when the helper is initialized at the start of the request
• #teardown(controller_instance), called at the end of the request

react-rails provides one implementation, React::Rails::ComponentMount.

UJS

react-rails's JavaScript is available as "react_ujs" in the asset pipeline or from NPM. It attaches itself to the window as ReactRailsUJS.

Mounting & Unmounting

Usually, react-rails mounts & unmounts components automatically as described in Event Handling below.

You can also mount & unmount components from <%= react_component(...) %> tags using UJS:

// Mount all components on the page:
ReactRailsUJS.mountComponents()
// Mount components within a selector:
ReactRailsUJS.mountComponents(".my-class")
// Mount components within a specific node:
ReactRailsUJS.mountComponents(specificDOMnode)

// Unmounting works the same way:
ReactRailsUJS.unmountComponents()
ReactRailsUJS.unmountComponents(".my-class")
ReactRailsUJS.unmountComponents(specificDOMnode)

You can use this when the DOM is modified by AJAX calls or modal windows.

Event Handling

ReactRailsUJS checks for various libraries to support their page change events:

• Turbolinks
• pjax
• jQuery
• Native DOM events

ReactRailsUJS will automatically mount components on <%= react_component(...) %> tags and unmount them when appropriate.

If you need to re-detect events, you can call detectEvents:

// Remove previous event handlers and add new ones:
ReactRailsUJS.detectEvents()

For example, if Turbolinks is loaded after ReactRailsUJS, you'll need to call this again. This function removes previous handlers before adding new ones, so it's safe to call as often as needed.

If Turbolinks is imported via Webpacker (and thus not available globally), ReactRailsUJS will be unable to locate it. To fix this, you can temporarily add it to the global namespace:

// Order is particular. First start Turbolinks:
Turbolinks.start();
// Add Turbolinks to the global namespace:
window.Turbolinks = Turbolinks;
// Remove previous event handlers and add new ones:
ReactRailsUJS.detectEvents();
// (Optional) Clean up global namespace:
delete window.Turbolinks;

getConstructor

Components are loaded with ReactRailsUJS.getConstructor(className). This function has two built-in implementations:

• On the asset pipeline, it looks up className in the global namespace.
• On Webpacker, it requires files and accesses named exports, as described in Get started with Webpacker.

You can override this function to customize the mapping of name-to-constructor. Server-side rendering also uses this function.

Server-Side Rendering

You can render React components inside your Rails server with prerender: true:

<%= react_component('HelloMessage', {name: 'John'}, {prerender: true}) %>
<!-- becomes: -->
<div data-react-class="HelloMessage" data-react-props="{&quot;name&quot;:&quot;John&quot;}">
  <h1>Hello, John!</h1>
</div>

(It will also be mounted by the UJS on page load.)

Server rendering is powered by ExecJS and subject to some requirements:

• react-rails must load your code. By convention, it uses server_rendering.js, which was created by the install task. This file must include your components and their dependencies (eg, Underscore.js).
• Your code can't reference document or window. Prerender processes don't have access to document or window, so jQuery and some other libs won't work in this environment :(

ExecJS supports many backends. CRuby users will get the best performance from mini_racer.

Configuration

Server renderers are stored in a pool and reused between requests. Threaded Rubies (eg jRuby) may see a benefit to increasing the pool size beyond the default 0.

These are the default configurations:

# config/application.rb
# These are the defaults if you don't specify any yourself
module MyApp
  class Application < Rails::Application
    # Settings for the pool of renderers:
    config.react.server_renderer_pool_size  ||= 1  # ExecJS doesn't allow more than one on MRI
    config.react.server_renderer_timeout    ||= 20 # seconds
    config.react.server_renderer = React::ServerRendering::BundleRenderer
    config.react.server_renderer_options = {
      files: ["server_rendering.js"],       # files to load for prerendering
      replay_console: true,                 # if true, console.* will be replayed client-side
    }
    # Changing files matching these dirs/exts will cause the server renderer to reload:
    config.react.server_renderer_extensions = ["jsx", "js"]
    config.react.server_renderer_directories = ["/app/assets/javascripts", "/app/javascript/"]
  end
end

JavaScript State

Some of ExecJS's backends are stateful (eg, mini_racer, therubyracer). This means that any side-effects of a prerender will affect later renders with that renderer.

To manage state, you have a couple options:

• Make a custom renderer with #before_render / #after_render hooks as described below
• Use per_request_react_rails_prerenderer to manage state for a whole controller action.

To check out a renderer for the duration of a controller action, call the per_request_react_rails_prerenderer helper in the controller class:

class PagesController < ApplicationController
  # Use the same React server renderer for the entire request:
  per_request_react_rails_prerenderer
end

Then, you can access the ExecJS context directly with react_rails_prerenderer.context:

def show
  react_rails_prerenderer           # => #<React::ServerRendering::BundleRenderer>
  react_rails_prerenderer.context   # => #<ExecJS::Context>

  # Execute arbitrary JavaScript code
  # `self` is the global context
  react_rails_prerenderer.context.exec("self.Store.setup()")
  render :show
  react_rails_prerenderer.context.exec("self.Store.teardown()")
end

react_rails_prerenderer may also be accessed in before- or after-actions.

Custom Server Renderer

react-rails depends on a renderer class for rendering components on the server. You can provide a custom renderer class to config.react.server_renderer. The class must implement:

• #initialize(options={}), which accepts the hash from config.react.server_renderer_options
• #render(component_name, props, prerender_options) to return a string of HTML

react-rails provides two renderer classes: React::ServerRendering::ExecJSRenderer and React::ServerRendering::BundleRenderer.

ExecJSRenderer offers two other points for extension:

• #before_render(component_name, props, prerender_options) to return a string of JavaScript to execute before calling React.render
• #after_render(component_name, props, prerender_options) to return a string of JavaScript to execute after calling React.render

Any subclass of ExecJSRenderer may use those hooks (for example, BundleRenderer uses them to handle console.* on the server).

Controller Actions

Components can also be server-rendered directly from a controller action with the custom component renderer. For example:

class TodoController < ApplicationController
  def index
    @todos = Todo.all
    render component: 'TodoList', props: { todos: @todos }, tag: 'span', class: 'todo'
  end
end

You can also provide the "usual" render arguments: content_type, layout, location and status. By default, your current layout will be used and the component, rather than a view, will be rendered in place of yield. Custom data-* attributes can be passed like data: {remote: true}.

Prerendering is set to true by default, but can be turned off with prerender: false.

Component Generator

You can generate a new component file with:

rails g react:component ComponentName prop1:type prop2:type ...

For example,

rails g react:component Post title:string published:bool published_by:instanceOf{Person}

would generate:

var Post = createReactClass({
  propTypes: {
    title: PropTypes.string,
    published: PropTypes.bool,
    publishedBy: PropTypes.instanceOf(Person)
  },

  render: function() {
    return (
      <React.Fragment>
        Title: {this.props.title}
        Published: {this.props.published}
        Published By: {this.props.publishedBy}
      </React.Fragment>
    );
  }
});

The generator also accepts options:

• --es6: use class ComponentName extends React.Component
• --coffee: use CoffeeScript

Accepted PropTypes are:

• Plain types: any, array, bool, element, func, number, object, node, shape, string
• instanceOf takes an optional class name in the form of instanceOf{className}.
• oneOf behaves like an enum, and takes an optional list of strings in the form of 'name:oneOf{one,two,three}'.
• oneOfType takes an optional list of react and custom types in the form of 'model:oneOfType{string,number,OtherType}'.

Note that the arguments for oneOf and oneOfType must be enclosed in single quotes to prevent your terminal from expanding them into an argument list.

Use with JBuilder

If you use Jbuilder to pass a JSON string to react_component, make sure your JSON is a stringified hash, not an array. This is not the Rails default -- you should add the root node yourself. For example:

# BAD: returns a stringified array
json.array!(@messages) do |message|
  json.extract! message, :id, :name
  json.url message_url(message, format: :json)
end

# GOOD: returns a stringified hash
json.messages(@messages) do |message|
  json.extract! message, :id, :name
  json.url message_url(message, format: :json)
end

Camelize Props

You can configure camelize_props option:

MyApp::Application.configure do
  config.react.camelize_props = true # default false
end

Now, Ruby hashes given to react_component(...) as props will have their keys transformed from underscore- to camel-case, for example:

{ all_todos: @todos, current_status: @status }
# becomes:
{ "allTodos" => @todos, "currentStatus" => @status }

You can also specify this option in react_component:

<%= react_component('HelloMessage', {name: 'John'}, {camelize_props: true}) %>

Upgrading

2.3 to 2.4

Keep your react_ujs up to date, yarn upgrade

React-Rails 2.4.x uses React 16+ which no longer has React Addons. Therefore the pre-bundled version of react no longer has an addons version, if you need addons still, there is the 2.3.1+ version of the gem that still has addons.

If you need to make changes in your components for the prebundled react, see the migration docs here:

• https://reactjs.org/blog/2016/11/16/react-v15.4.0.html
• https://reactjs.org/blog/2017/04/07/react-v15.5.0.html
• https://reactjs.org/blog/2017/06/13/react-v15.6.0.html

For the vast majority of cases this will get you most of the migration:

• global find+replace React.Prop -> Prop
• add import PropTypes from 'prop-types' (Webpacker only)
• re-run bundle exec rails webpacker:install:react to update npm packages (Webpacker only)

Common Errors

During installation

1. While using installers.(rails webpacker:install:react && rails webpacker:install) Error:

public/packs/manifest.json. Possible causes:
1. You want to set webpacker.yml value of compile to true for your environment
   unless you are using the `webpack -w` or the webpack-dev-server.
2. webpack has not yet re-run to reflect updates.
3. You have misconfigured Webpacker's config/webpacker.yml file.
4. Your webpack configuration is not creating a manifest.
or
yarn: error: no such option: --dev
ERROR: [Errno 2] No such file or directory: 'add'

Fix: Try updating yarn package.

sudo apt remove cmdtest
sudo apt remove yarn
curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | sudo apt-key add -
echo "deb https://dl.yarnpkg.com/debian/ stable main" | sudo tee /etc/apt/sources.list.d/yarn.list
sudo apt-get update && sudo apt-get install yarn

yarn install

Undefined Set

ExecJS::ProgramError (identifier 'Set' undefined):

(execjs):1

If you see any variation of this issue, see Using TheRubyRacer

Using TheRubyRacer

TheRubyRacer hasn't updated LibV8 (The library that powers Node.js) from v3 in 2 years, any new features are unlikely to work.

LibV8 itself is already beyond version 7 therefore many serverside issues are caused by old JS engines and fixed by using an up to date one such as MiniRacer or TheRubyRhino on JRuby.

HMR

Hot Module Replacement is possible with this gem as it does just pass through to Webpacker. Please open an issue to let us know tips and tricks for it to add to the wiki.

Sample repo that shows HMR working with react-rails: https://github.com/edelgado/react-rails-hmr

One caveat is that currently you cannot Server-Side Render along with HMR.

Related Projects

• webpacker-react: Integration of React with Rails utilizing Webpack with Hot Module Replacement (HMR).
• The React on Rails Course A video course which teaches the basics of React and how to get started using it in Rails with react-rails.
• react_on_rails: Integration of React with Rails utilizing Webpack, Redux, React-Router.
• react-rails-hot-loader Simple live-reloader for react-rails.
• react-rails-benchmark_renderer adds performance instrumentation to server rendering.
• Ruby Hyperstack: Use Ruby to build reactive user interfaces with React.

Contributing

🎉 Thanks for taking the time to contribute! 🎉

With 5 Million+ downloads of the react-rails Gem and another 2 Million+ downloads of react_ujs on NPM, you're helping the biggest React + Rails community!

By contributing to React-Rails, you agree to abide by the code of conduct.

You can always help by submitting patches or triaging issues, even offering reproduction steps to issues is incredibly helpful!

Please see our Contribution guide for more info.

A source code example utilizing React-Rails: https://github.com/BookOfGreg/react-rails-example-app

Author: Reactjs
Source Code: https://github.com/reactjs/react-rails 
License: Apache-2.0 license

#react #javascript #typescript #ruby #rails 

How To Set Up Two-Factor Authentication in cPanel

What is 2FA
Two-Factor Authentication (or 2FA as it often referred to) is an extra layer of security that is used to provide users an additional level of protection when securing access to an account.
Employing a 2FA mechanism is a vast improvement in security over the Singe-Factor Authentication method of simply employing a username and password. Using this method, accounts that have 2FA enabled, require the user to enter a one-time passcode that is generated by an external application. The 2FA passcode (usually a six-digit number) is required to be input into the passcode field before access is granted. The 2FA input is usually required directly after the username and password are entered by the client.

#tutorials #2fa #access #account security #authentication #authentication method #authentication token #cli #command line #cpanel #feature manager #google authenticator #one time password #otp #otp authentication #passcode #password #passwords #qr code #security #security code #security policy #security practices #single factor authentication #time-based one-time password #totp #two factor authentication #whm

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 Starter Kit: Build Web Apps with React, Relay and GraphQL.

React Starter Kit — "isomorphic" web app boilerplate   

React Starter Kit is an opinionated boilerplate for web development built on top of Node.js, Express, GraphQL and React, containing modern web development tools such as Webpack, Babel and Browsersync. Helping you to stay productive following the best practices. A solid starting point for both professionals and newcomers to the industry.

See getting started guide, demo, docs, roadmap  |  Join #react-starter-kit chat room on Gitter  |  Visit our sponsors:

 

Hiring

Getting Started

• Follow the getting started guide to download and run the project (Node.js >= 8.16.2)
• Check the code recipes used in this boilerplate, or share yours

Customization

The master branch of React Starter Kit doesn't include a Flux implementation or any other advanced integrations. Nevertheless, we have some integrations available to you in feature branches that you can use either as a reference or merge into your project:

• feature/redux (PR) — isomorphic Redux by Pavel Lang (see how to integrate Redux) (based on master)
• feature/apollo (PR) — isomorphic Apollo Client by Pavel Lang (see Tracking PR #1147) (based on feature/redux)
• feature/react-intl (PR) — isomorphic Redux and React Intl by Pavel Lang (see how to integrate React Intl) (based on feature/apollo)
• feature/apollo-pure (PR) — Apollo devtools and TypeScript integration by piglovesyou (based on master)

You can see status of most reasonable merge combination as PRs labeled as TRACKING

If you think that any of these features should be on master, or vice versa, some features should removed from the master branch, please let us know. We love your feedback!

Comparison

	React Starter Kit	React Static Boilerplate	ASP.NET Core Starter Kit
App type	Isomorphic (universal)	Single-page application	Single-page application
Frontend
Language	JavaScript (ES2015+, JSX)	JavaScript (ES2015+, JSX)	JavaScript (ES2015+, JSX)
Libraries	React, History, Universal Router	React, History, Redux	React, History, Redux
Routes	Imperative (functional)	Declarative	Declarative, cross-stack
Backend
Language	JavaScript (ES2015+, JSX)	n/a	C#, F#
Libraries	Node.js, Express, Sequelize, GraphQL	n/a	ASP.NET Core, EF Core, ASP.NET Identity
SSR	Yes	n/a	n/a
Data API	GraphQL	n/a	Web API

Backers

♥ React Starter Kit? Help us keep it alive by donating funds to cover project expenses via OpenCollective or Bountysource!

 

How to Contribute

Anyone and everyone is welcome to contribute to this project. The best way to start is by checking our open issues, submit a new issue or feature request, participate in discussions, upvote or downvote the issues you like or dislike, send pull requests.

Learn More

• Getting Started with React.js
• Getting Started with GraphQL and Relay
• React.js Questions on StackOverflow
• React.js Discussion Board
• Flux Architecture for Building User Interfaces
• Enzyme — JavaScript Testing utilities for React
• Flow — A static type checker for JavaScript
• The Future of React
• Learn ES6, ES6 Features

Related Projects

• GraphQL Starter Kit — Boilerplate for building data APIs with Node.js, JavaScript (via Babel) and GraphQL
• Membership Database — SQL schema boilerplate for user accounts, profiles, roles, and auth claims
• Babel Starter Kit — Boilerplate for authoring JavaScript/React.js libraries

Support

• #react-starter-kit on Stack Overflow — Questions and answers
• #react-starter-kit on Gitter — Watch announcements, share ideas and feedback
• GitHub issues, or Scrum board — File issues, send feature requests
• appear.in/react — Open hours! Exchange ideas and experiences (React, GraphQL, startups and pet projects)
• @koistya on Codementor, or Skype — Private consulting

License

Copyright © 2014-present Kriasoft, LLC. This source code is licensed under the MIT license found in the LICENSE.txt file. The documentation to the project is licensed under the CC BY-SA 4.0 license.

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Author: kriasoft
Source Code: https://github.com/kriasoft/react-starter-kit
License: MIT License

#graphql #react