Next.js 14 & Tailwind & TypeScript

Tutorials

• Quickstart tutorials
  • https://www.freecodecamp.org/news/nextjs-tutorial
  • https://www.youtube.com/watch?v=Sklc_fQBmcs
• Official docs: https://nextjs.org/docs#join-our-community
  • Note which you chose to use: Page or App router. If you setup create-next-app and choosen App Router, then read the documentation about App Router.
• Next 12: https://www.youtube.com/playlist?list=PL4cUxeGkcC9g9gP2onazU5-2M-AzA8eBw
• Next 14: https://www.youtube.com/playlist?list=PLC3y8-rFHvwjOKd6gdf4QtV1uYNiQnruI
• TypeScript: https://www.freecodecamp.org/news/learn-typescript-beginners-guide
• Tailwind: https://www.youtube.com/playlist?list=PL4cUxeGkcC9gpXORlEHjc5bgnIi5HEGhw

Auth

• https://www.youtube.com/watch?v=v6TPcU23wP8 (Very Good)
  • https://next-auth.js.org/providers/credentials
  • https://nextjs.org/docs/messages/middleware-upgrade-guide#breaking-changes
• https://www.youtube.com/watch?v=n5dsBONfwjE
• https://blog.logrocket.com/using-supertokens-authentication-next-js

File upload

• Both Form-Action and API-Route-Handler methods are taught: https://www.pronextjs.dev/next-js-file-uploads-server-side-solutions

Server vs Client sides

• CSR:
  • What is it:
    • Server gives <div id="root"></div> and JS to client. Client renders it all
  • Disadvantages:
    • Bad SEO
    • Browser must render all the JS on browser first before website us usable
• SSR & Hydration:
  • What is it:
    • Rendered on server then send to client. Hydration takes over and makes interactive.
  • Types:
    • SSR: Rendered on server at request time. Good for personalized contents, eg: logged in users
    • SSG: Rendered on server at deploy/build time. Good for largely static contents, eg blogs
      • ISR: When data changes, individual pages gets rebuild, instead of the whole site.
    • More info on various rendering patterns: https://www.youtube.com/watch?v=Dkx5ydvtpCA
  • Disadvantages:
    • Server must get all the needed data before it renders the page
    • All JavaScript must download from the server before the client can be hydrated with it.
    • All hydration has to complete on the client before anything can be interacted with.
• SSR & Suspense:
  • What is it:
    • The <Suspense component>, allowing:
      • HTML streaming: Server don't need all the data before it renders the page
      • Code splitting: JavaScript are streamed to the browser piece-meal
      • Selective hydration: Hydration in piece-meal, according to priority or need
  • Disadvantages:
    • If there a lot of JS, then browser still need to download them all eventually. There has to be a better way, ie: some of the JS work can be done on the server
    • Things that dont need hydration gets hydrated too
• React Server Components:
  • What is it:
    • React invented Server components in version ~18/19, Next uses it since version 13. Next introduced App router in version 13, it's built around the RSC architecture. In App Router projects, a component is server side by default, unless have "use client" specified at the top of the file.
    • Server and Client components are seperated.
    • Server components only runs on the server, it never gets downloaded to the browser, hence reducing the load on the browser.
    • Client components handles interactivity
  • Advantages:
    • Less JS need to be download to browser
    • Data fetching in server components, on server side, which is closer to data source, hence faster.
    • Sensitive info kept on server side
  • More info:
    • https://www.plasmic.app/blog/how-react-server-components-work
• Qwik Resumability: https://www.youtube.com/watch?v=t11M-Fj6iiQ
  • Hydration vs Qwik Resumability: https://thenewstack.io/javascript-on-demand-how-qwik-differs-from-react-hydration

Next 13 changes

Next 13 added the new App Router on top of its pre existing Page Router

SSR, SSG & ISR

In App Router

fetch (URL), {
  cache: "force-cache", // SSG
  cache: "no-store", // SSR
  next: {revalidate: 1} // ISR
})

fetch vs Next's patched fetch:

• Original fetch: https://developer.mozilla.org/en-US/docs/Web/API/fetch#parameters
• Next's fetch: https://nextjs.org/docs/app/api-reference/functions/fetch
  • Note: Next's fetch have an extra options field called next, in which you can specify ISR revalidation time

In Page Router

• SSR: getServerSideProps
• SSG: getStaticProps & getStaticPaths
• ISR:

function getStaticProps() {
  // ...
  return {
    props: { THE RESULT },
    revalidate: 1
  }
}

https://nextjs.org/docs/pages/building-your-application/configuring/typescript#static-generation-and-server-side-rendering

See also

• https://github.com/Ruslan-Aliyev/JAM

Todo

• Full CRUD
• Contact form with email
• https://blog.logrocket.com/implementing-service-workers-next-js
• Multilingual
• Bread crumbs
• Pagination, sort, search