Using Electrode to Improve React Server Side Render Performance By Up To 70%

  • js application platform that powers walmart.com with several goals in mind, including ease of use, re-usability of components across applications and, most importantly, performance.We use server side rendering for almost all of our applications for two reasons:Improved performance for the customerBetter for SEOIn our tests, however, we found that React’s renderToString() takes quite a while to execute — and since renderToString() is synchronous, the server is blocked while it runs.
  • Every server side render executes renderToString() to build the HTML that the application server will be sending to the browser.To solve this problem, we created two Electrode modules: Above the Fold Render (ATF) and Server Side Render Profiling and Caching (SSR Caching).
  • The average renderToString()call with this configuration took 153.80 ms.Electrode default, though, Electrode comes with renderWithIds:false, which gives us a renderToString() time of 124.80 ms. Not bad — Electrode’s default configuration has already improved render time by 19%!
  • That drops our renderToString() time all the way to 36.56 ms — an astounding 71% improvement from the default Electrode configuration, and a 76% improvement from our original, unoptimized test.
  • That means a 70% improvement won’t mean 90 ms, but 180 ms saved.Special Thanks:To Arunesh Joshi, Dmitry Yesin, and the home page team who have implemented the Electrode modules and are using them on the home page in production.To Caoyang Shi, for helping to gather data and ensuring we’re getting the right numbers!More Information:Check out Joel Chen’s post on ReactJS SSR Profiling and Caching or Arpan Nanavati’s post on Building React.js at Enterprise Scale.Check out my post about the release of Electrode, the customer-facing platform that powers Walmart.com.The Electrode website: www.electrode.io

We built Electrode, the react/node.js application platform that powers walmart.com with several goals in mind, including ease of use, re-usability of components across applications and, most…
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Why props are your friend!

Why props are your friend! => 

{ Story by @RockChalkDev }

🍻 #ReactJS #JavaScript

  • The way this works is that when the user comes to the Home page they are greeted with four images that represent their respective collection.
  • When the user selects one of the four images on the Home page an async method, , is called.
  • This function is responsible for two things:

    When the user gets to the Portfolio page they are greeted with a Carousel displaying the images.

  • The Porfolio component is connected to the Redux store so it has access to the app state in our case we want .
  • Below you an see what looks like on a user’s selection:

    The Redux store doesn’t have that information avaliable in state.

This the first time I’ve ever done a blog post, I guess this is a blog post. I wanted to share this because I’m pretty impressed with my use of props &.
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Next.Js – JavaScript Mantra – Medium

Next.Js: Is it the next big thing in JavaScript? @arunoda  #JavaScript #Reactjs

  • Just create a few files for pages in your app, and you are done.
  • For example, let’s say you need to create web app with two pages (Home page and About page).
  • It uses the file system as the router for your app.
  • You need to bring additional stuff which is needed for your app.
  • import React from ‘react’ import Header from ‘.

There are too many JS frameworks out there — we all know that.
But still, we see new JS frameworks every day. Next.js may not cure JS Fatigue, but it allows us to build web apps in JavaScript as we…
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Using Electrode to Improve React Server Side Render Performance By Up To 70% – WalmartLabs – Medium

Using Electrode to improve #ReactJS server side render performance by up to 70%:

  • Using Electrode to Improve React Server Side Render Performance By Up To 70%
  • To solve the problem, we created two Electrode modules: Above the Fold Render (ATF) and Server Side Render Profiling and Caching (SSR Caching) .
  • Not bad – Electrode’s default configuration has already improved render time by 19%!
  • By default, though, Electrode comes with renderWithIds:false , which gives us a renderToString() time of 124.80 ms .
  • Every server side render executes renderToString() to build the HTML that the application server will be sending to the browser.

We built Electrode, the react/node.js application platform that powers walmart.com with several goals in mind, including ease of use, re…
Continue reading “Using Electrode to Improve React Server Side Render Performance By Up To 70% – WalmartLabs – Medium”

Role-based authorization using React-Router

  • Now we want to make the Profile route (and all its child routes) available only for users with the employee role, and the EmployeesManagement route available for users with the admin role.
  • By inheriting the Profile class from our new AuthorizedComponent we can easily prevent showing all its child routes if they are not available for the current user’s roles.
  • For example, if we have a route /admin/profile we may want to prevent users with only an employee role to open this route.
  • The second thing I had to deal with was the home page which has the same address (route) for all types of user roles.
  • This is a very simple container component which shows different children components depending on the current route (the RouteHandler component takes care of it – this is a subject for another blog post).

Read the full article, click here.


@burczu: “just blogged about #rolebased #authorization in #reactjs with #reactrouter: #javascript #frontend”


In the today’s post I will show you how to deal with the role-based authorization using React and React-router.


Role-based authorization using React-Router