React  Universal (Isomorphic)  JavaScript

Wang Chien-Chieh - @jf423

http://bit.ly/2r7rndI

Why Universal (Isomorphic)  JavaScript ?

Multi-page

Client

Server

Request

HTML (View + Data)

Request

(Reload on every request)

(Generate Full page in every request)

HTML (View + Data)

  • Bad User Experience

  • Server Overloaded

  • Confused with MVC ?

  • etc...

Multi-page

Single Page Application (SPA)

Client

Server

Request A

HTML (View)

AJAX

(Generate the interactive part of view)

(Only generate part of page)

Data (JSON)

Single Page Application (SPA)

  • Implement Client Routing

  • Poor SEO ?

(https://medium.com/netflix-techblog/making-netflix-com-faster-f95d15f2e972)

Universal (Isomorphic) JavaScript

Func(Date) => VIEW

Universal (Isomorphic) JavaScript

Client

Server

Request

HTML (View + Part of Data)

Request

(SPA)

(SPA)

HTML (View + Part of Data)

API Server

AJAX

AJAX

  • Rendering
     

  • Routing
     

  • Data
     

  • Style

render in both client side and server side ? error handle ?
how to recognize the route in both side ?
how to localize the css ?
how to access data in the lack of lifecycle hook ?
Minimalistic React framework for 
server-rendered and code splitting

https://zeit.co

  1. Zero setup. Use the filesystem as route API

  2. Automatic server rendering and code splitting

  3. Additional lifecycle hook for data fetching

  4. Application performance for client side navigation

  5. Scalable HMR (Hot Module Replacement)

  6. Component CSS Support

Server Rendering

  • Filebase system
    every component inside pages/ gets server-rendered automatically and their scripts inlined
  • Automatic code splitting
    transpilation and bundling in default
    (with webpack and Babel)
  • head / document
    take control of the <head> tag in html.
    ex. customize meta tags     
<Head>
    <title>Index</title>
    <link rel="icon" href="https://cdn.auth0.com/blog/next.jslogo.png" type="image/gif" sizes="16x16" />
</Head>

URL Routing

It's the High Order Component which handle all the location.history

  • Link

  • prefetch

the ability to allow you to pre-download the script of other pages

<Link href={'/about'} prefetch><a>{v.fullName}</a></Link>

(production only feature)

Data fetch

  • getInitialProps

Extra lifecycle hook for get data fetch and initial props

(Only for the file in /pages )

static async getInitialProps({ req }) {
    const isServer = !!req;
    if(isServer) {
        console.log("i am server");
    } else {
        console.log("i am client");
    }
}

Style Component

style-jsx

export default () => (
  <div>
    <p>only this paragraph will get the style</p>
    <style jsx>{`
      p {
        color: red;
      }
    `}</style>
  </div>
)

glamor

import { css } from 'glamor'

<div className={hello}>
  Hello
</div>

const hello = css({
    font: '15px Helvetica, Arial, sans-serif',
    color: '#000'
});

Deployment

npm run build
npm run start

Now

npm install -g now

now

(https://zeit.co/download#automatic-updates)

*Based support to HTTPS and HTTP/2.

Resources

Next.js

By Chien Chieh Wang

Made with Slides.com

Next.js

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