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Next.js | CLI

Next.js CLI

Hello folks! welcome back to a new section of our tutorial on Next.js. In this tutorial, we will be studying about Next.js CLI.

Next.js makes available a CLI to start, build and export application. It can be called with npx which comes with npm 5.2 and above.

CLI Help

To get a list of CLI commands and help on them, type the following command -

npx next -h
      $ next <command>

   Available commands
      build, start, export, dev, telemetry

      --version, -v   Version number
      --help, -h      Displays this message

   For more information run a command with the --help flag
      $ next build --help

Build Production Ready Build

Try the following command -

npx next build
info  - Loaded env from D:\Node\nextjs\.env.local
Creating an optimized production build

Compiled successfully.

Automatically optimizing pages

Page                                                           Size     First Load JS
+ ? /                                                          2.25 kB        60.3 kB
+   /_app                                                      288 B          58.1 kB
+        /404                                                       3.25 kB   61.3 kB
+ ? /api/user
+ ? /posts/[id]                                                312 B          61.6 kB
+   + /posts/one
+   + /posts/two
+ ? /posts/env                                                 2.71 kB        60.8 kB
+ ? /posts/first                                               374 B          61.7 kB
+ First Load JS shared by all                                  58.1 kB
  + static/pages/_app.js                                       288 B
  + chunks/ab55cb957ceed242a750c37a082143fb9d2f0cdf.a1a019.js  10.5 kB
  + chunks/framework.c6faae.js                                 40 kB
  + runtime/main.60464f.js                                     6.54 kB
  + runtime/webpack.c21266.js                                  746 B
  + css/9706b5b8ed8e82c0fba0.css                               175 B

?  (Server)  server-side renders at runtime (uses getInitialProps or getServerSideProps)
          (Static)  automatically rendered as static HTML (uses no initial props)
?  (SSG)     automatically generated as static HTML + JSON (uses getStaticProps)

Build and Start Development Server

Try the following command -

npx next dev

ready - started server on http://localhost:3000
info  - Loaded env from D:\Node\nextjs\.env.local
event - compiled successfully

Start the Production Server

Try the following command -

npx next start

info  - Loaded env from \Node\nextjs\.env.local
ready - started server on http://localhost:3000

Alright guys! This is where we are going to be rounding up for this tutorial. In our next tutorial, we are going to be starting a series on AngularJS.

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Thanks for reading and bye for now.

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