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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Slides for
Next.js — Ruby on Rails Guides
</title>
<link rel="stylesheet" type="text/css" href="stylesheets/style.css" data-turbo-track="reload">
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<body>
<div class="reveal">
<!-- Any section element inside of this container is displayed as a slide -->
<div class="slides">
<section>
<h1>Next.js</h1><p>Next.js is a framework for react
that also includes backend functionality.</p><p>After working through this guide you should</p>
<ul>
<li>know how to build server rendered pages in next.js</li>
<li>know how to build api endpoints in next.js</li>
</ul>
<p><small>Slides - use arrow keys to navigate, esc to return to page view, f for fullscreen</small></p>
</section>
<section><a class='slide_break' href='nextjs.html#slide-0'>▻</a>
<h2 id="what-is-next-js-questionmark"><a class="anchorlink" href="#what-is-next-js-questionmark"><span>1</span> What is next.js?</a></h2><p>Next.js is an open source framework, but it is mainly developed by Vercel.
Vercel's business is platform a service. They published next.js in 2016.
React documentation mentions Next.js among "Recommended Toolchains"
since at least 2021.</p></section>
<section><a class='slide_break' href='nextjs.html#slide-1'>▻</a>
<h2 id="what-does-it-offer-questionmark"><a class="anchorlink" href="#what-does-it-offer-questionmark"><span>2</span> What does it offer?</a></h2><p>Next.js gives you a folder structure for you application,
and several different ways to render webpages:</p>
<ul>
<li>static webpages that are rendered once, at build time.</li>
<li>api endpoints</li>
<li>server rendered pages that are served as HTML, but can be refreshed.</li>
<li>React Server Components, where you can mix client and server side components in one react tree</li>
</ul>
</section>
<section><a class='slide_break' href='nextjs.html#slide-2'>▻</a>
<h2 id="the-missing-persistence-layer"><a class="anchorlink" href="#the-missing-persistence-layer"><span>3</span> The missing persistence layer</a></h2><p>Next.js is not a full backend framework. For example it does not offer an
ORM or another persistence layer. There is good documentation for
combining next.js with</p>
<ul>
<li><a href="https://supabase.com/docs/guides/getting-started/quickstarts/nextjs">superbase</a>, which offers Postgres as a service</li>
<li><a href="https://www.apollographql.com/blog/apollo-client/next-js/how-to-use-apollo-client-with-next-js-13/">apollo</a>, which offers GraphQL</li>
<li><a href="https://www.prisma.io/nextjs">prisma</a>, a ORM for typescript or javascript</li>
</ul>
</section>
<section><a class='slide_break' href='nextjs.html#slide-3'>▻</a>
<h2 id="next-js-routing"><a class="anchorlink" href="#next-js-routing"><span>4</span> next.js routing</a></h2><p>From next.js 13 onwards the routes are created in the <code>app/</code> directory.
<code>page.js</code> is the default (like index.html used to be), folders can contain parameters in brackets:</p><div class="interstitial code">
<pre><code class="highlight plaintext">app/page.js --> /
app/otherpage/page.js --> /otherpage
app/users/page.js --> /users/
app/users/[:id]/page.js --> /users/42/
</code></pre>
<button class="clipboard-button" data-clipboard-text="app/page.js --> /
app/otherpage/page.js --> /otherpage
app/users/page.js --> /users/
app/users/[:id]/page.js --> /users/42/
">Copy</button>
</div>
<p>There are special files:</p>
<ul>
<li><code>layout.js</code> for <a href="https://nextjs.org/docs/app/building-your-application/routing/pages-and-layouts#nesting-layouts">nested layouts</a></li>
<li><code>error.js</code> for <a href="https://nextjs.org/docs/app/building-your-application/routing/error-handling">error handling</a> with error boundaries</li>
</ul>
<p><img src="images/nested-layouts-ui.png" alt=""></p></section>
<section><a class='slide_break' href='nextjs.html#slide-4'>▻</a>
<h2 id="next-js-as-a-static-site-generator"><a class="anchorlink" href="#next-js-as-a-static-site-generator"><span>5</span> next.js as a Static Site Generator</a></h2><p>You can use <code>next.js</code> like <code>jekyll</code>, <code>eleventy</code> or <code>gatsby</code> as a <a href="https://jamstack.org/generators/">static
site generator</a>: during build time, html files are generated and can
then be served by a minimal webserver without backend capabilities.</p><p>This is the classic <a href="https://jamstack.org/">Jamstack</a> (where JAM stands for JavaScript, API and Markup).</p><p>See <a href="https://nextjs.org/docs/pages/building-your-application/rendering/static-site-generation">Static Site Generation (SSG)</a></p>
<ul>
<li>create a nextjs app</li>
<li>in next.config.js add one or two values (see below)</li>
<li><code>npm run build</code></li>
<li>find the static files in folder <code>out/</code></li>
</ul>
</section>
<section><a class='slide_break' href='nextjs.html#slide-5'>▻</a>
<h3 id="next-config-js-for-static-site-generation"><a class="anchorlink" href="#next-config-js-for-static-site-generation"><span>5.1</span> next.config.js for static site generation</a></h3><p>We must set <code>output</code> to <code>export</code> to enable static site generations.</p><p>For static pages we need to set <code>trailingSlash</code> to <code>true</code> on most webservers.</p><p>If the site will be hosted in a subfolder, for example at <a href="http://bjelline.pages.mediacube.at/statixnextjs/">http://bjelline.pages.mediacube.at/statixnextjs/</a>
we must configure this as the config value <code>basePath</code>:</p><div class="interstitial code">
<pre><code class="highlight plaintext">const nextConfig = {
output: 'export',
trailingSlash: true,
basePath: '/foldername',
}
</code></pre>
<button class="clipboard-button" data-clipboard-text="const nextConfig = {
output: 'export',
trailingSlash: true,
basePath: '/foldername',
}
">Copy</button>
</div>
</section>
<section><a class='slide_break' href='nextjs.html#slide-6'>▻</a>
<h3 id="using-github-or-gitlab-pages"><a class="anchorlink" href="#using-github-or-gitlab-pages"><span>5.2</span> using Github or gitlab pages</a></h3><p>You can host your static files gitlab pages with the following configuration:
gitlab CI is used to build the pages, and the resulting folder <code>out</code> is declared
as an artifact. Gitlab will pick up this artifact and serve it through its
pages webserver.</p><div class="interstitial code">
<pre><code class="highlight plaintext">image: node
before_script:
- npm install
cache:
key: ${CI_COMMIT_REF_SLUG}
paths:
- node_modules/
- .next/cache/
pages:
script:
- npm run build
- mv public old_republic
- mv out public
artifacts:
paths:
- public
only:
- main
</code></pre>
<button class="clipboard-button" data-clipboard-text="image: node
before_script:
- npm install
cache:
key: ${CI_COMMIT_REF_SLUG}
paths:
- node_modules/
- .next/cache/
pages:
script:
- npm run build
- mv public old_republic
- mv out public
artifacts:
paths:
- public
only:
- main
">Copy</button>
</div>
</section>
<section><a class='slide_break' href='nextjs.html#slide-7'>▻</a>
<h2 id="next-js-for-api-endpoints"><a class="anchorlink" href="#next-js-for-api-endpoints"><span>6</span> next.js for API endpoints</a></h2><p>Use files called <code>route.js</code> as <a href="https://nextjs.org/docs/app/building-your-application/routing/router-handlers">route handlers</a> to implement the endpoints.</p><div class="interstitial code">
<pre><code class="highlight js"><span class="c1">// file /app/greeting/route.js</span>
<span class="k">import</span> <span class="p">{</span> <span class="nx">NextResponse</span> <span class="p">}</span> <span class="k">from</span> <span class="dl">'</span><span class="s1">next/server</span><span class="dl">'</span>
<span class="k">export</span> <span class="k">async</span> <span class="kd">function</span> <span class="nf">GET</span><span class="p">()</span> <span class="p">{</span>
<span class="k">return</span> <span class="nx">NextResponse</span><span class="p">.</span><span class="nf">json</span><span class="p">({</span> <span class="dl">"</span><span class="s2">hello</span><span class="dl">"</span><span class="p">:</span> <span class="dl">"</span><span class="s2">world</span><span class="dl">"</span> <span class="p">})</span>
<span class="p">}</span>
</code></pre>
<button class="clipboard-button" data-clipboard-text="// file /app/greeting/route.js
import { NextResponse } from 'next/server'
export async function GET() {
return NextResponse.json({ "hello": "world" })
}
">Copy</button>
</div>
</section>
<section><a class='slide_break' href='nextjs.html#slide-8'>▻</a>
<h2 id="server-side-rendering-ssr"><a class="anchorlink" href="#server-side-rendering-ssr"><span>7</span> Server Side Rendering (SSR)</a></h2><p>With server side rendering, a HTML document is shipped to the browser.
Then the browser loads the necessary JavaScript, and
<a href="https://react.dev/reference/react-dom/hydrate#hydrating-server-rendered-html">hydrates</a> the HTML
into a client side React App.</p></section>
<section><a class='slide_break' href='nextjs.html#slide-9'>▻</a>
<h2 id="react-server-components"><a class="anchorlink" href="#react-server-components"><span>8</span> React Server Components</a></h2><p>The react render tree is composed from server and client components. In next.js 13 all components
are server components by default. You have to add <code>"use client";</code> on top of a component to turn
it into a client component.</p><p><img src="images/react-server-components.png" alt=""></p></section>
<section><a class='slide_break' href='nextjs.html#slide-10'>▻</a>
<h3 id="how-to-use-rsc"><a class="anchorlink" href="#how-to-use-rsc"><span>8.1</span> How to use RSC</a></h3><p>Simple rules for client and server components:</p>
<ul>
<li>Use <code>.server.js</code> and <code>.client.js</code> as filename extensions.</li>
<li>Server Components can contain client components.</li>
<li>Client Components cannot contain server components.</li>
<li>Server Components can instantiate both client and server components, and pass in a Server Component as the children prop to a ClientComponent.</li>
<li>Server Components cannot pass functions as props to its descendents, only data.</li>
<li>Use modules to share data in server components, use <a href="https://nextjs.org/docs/getting-started/react-essentials#context">context</a> to share data in client components.</li>
</ul>
</section>
<section><a class='slide_break' href='nextjs.html#slide-11'>▻</a>
<h3 id="server-components-can-contain-client-components"><a class="anchorlink" href="#server-components-can-contain-client-components"><span>8.2</span> Server Components can contain client components:</a></h3><div class="interstitial code">
<pre><code class="highlight js"><span class="c1">// this is server_component.server.js</span>
<span class="k">import</span> <span class="nx">ClientComponent</span> <span class="k">from</span> <span class="dl">'</span><span class="s1">./ClientComponent.client</span><span class="dl">'</span>
<span class="k">export</span> <span class="k">default</span> <span class="kd">function</span> <span class="nf">ServerComponent</span><span class="p">()</span> <span class="p">{</span>
<span class="k">return </span><span class="p">(</span>
<span class="o"><></span>
<span class="o"><</span><span class="nx">ClientComponent</span> <span class="o">/></span>
<span class="o"><</span><span class="sr">/</span><span class="err">>
</span> <span class="p">)</span>
<span class="p">}</span>
</code></pre>
<button class="clipboard-button" data-clipboard-text="// this is server_component.server.js
import ClientComponent from './ClientComponent.client'
export default function ServerComponent() {
return (
<>
<ClientComponent />
</>
)
}
">Copy</button>
</div>
</section>
<section><a class='slide_break' href='nextjs.html#slide-12'>▻</a>
<h3 id="client-components-cannot-contain-server-components"><a class="anchorlink" href="#client-components-cannot-contain-server-components"><span>8.3</span> Client Components cannot contain server components:</a></h3><div class="interstitial code">
<pre><code class="highlight js"><span class="c1">// this is client_component.client.js</span>
<span class="c1">// ERROR !!!!</span>
<span class="k">import</span> <span class="nx">ServerComponent</span> <span class="k">from</span> <span class="dl">'</span><span class="s1">./ServerComponent.server</span><span class="dl">'</span>
<span class="k">export</span> <span class="k">default</span> <span class="kd">function</span> <span class="nf">ClientComponent</span><span class="p">()</span> <span class="p">{</span>
<span class="k">return </span><span class="p">(</span>
<span class="o"><</span><span class="nx">div</span><span class="o">></span>
<span class="o"><</span><span class="nx">ServerComponent</span> <span class="o">/></span>
<span class="o"><</span><span class="sr">/div</span><span class="err">>
</span> <span class="p">)</span>
<span class="p">}</span>
</code></pre>
<button class="clipboard-button" data-clipboard-text="// this is client_component.client.js
// ERROR !!!!
import ServerComponent from './ServerComponent.server'
export default function ClientComponent() {
return (
<div>
<ServerComponent />
</div>
)
}
">Copy</button>
</div>
</section>
<section><a class='slide_break' href='nextjs.html#slide-13'>▻</a>
<h3 id="you-can-pass-in-server-components-to-a-clientcomponent"><a class="anchorlink" href="#you-can-pass-in-server-components-to-a-clientcomponent"><span>8.4</span> You can pass in Server Components to a ClientComponent</a></h3><div class="interstitial code">
<pre><code class="highlight js"><span class="c1">// this is outer_server_component.server.js</span>
<span class="k">import</span> <span class="nx">ClientComponent</span> <span class="k">from</span> <span class="dl">'</span><span class="s1">./ClientComponent.client</span><span class="dl">'</span>
<span class="k">import</span> <span class="nx">ServerComponent</span> <span class="k">from</span> <span class="dl">'</span><span class="s1">./ServerComponent.server</span><span class="dl">'</span>
<span class="k">export</span> <span class="k">default</span> <span class="kd">function</span> <span class="nf">OuterServerComponent</span><span class="p">()</span> <span class="p">{</span>
<span class="k">return </span><span class="p">(</span>
<span class="o"><</span><span class="nx">ClientComponent</span><span class="o">></span>
<span class="o"><</span><span class="nx">ServerComponent</span> <span class="o">/></span>
<span class="o"><</span><span class="sr">/ClientComponent</span><span class="err">>
</span> <span class="p">)</span>
<span class="p">}</span>
</code></pre>
<button class="clipboard-button" data-clipboard-text="// this is outer_server_component.server.js
import ClientComponent from './ClientComponent.client'
import ServerComponent from './ServerComponent.server'
export default function OuterServerComponent() {
return (
<ClientComponent>
<ServerComponent />
</ClientComponent>
)
}
">Copy</button>
</div>
</section>
<section><a class='slide_break' href='nextjs.html#slide-14'>▻</a>
<h3 id="server-comopnents-cannot-pass-functions-to-its-descendents"><a class="anchorlink" href="#server-comopnents-cannot-pass-functions-to-its-descendents"><span>8.5</span> Server Comopnents cannot pass functions to its descendents</a></h3><p>Because props are serialized into JSON, and functions cannot be serialized into JSON,
Server Components cannot pass functions as props to its descendents.</p><div class="interstitial code">
<pre><code class="highlight js"><span class="c1">// ERROR !!!!</span>
<span class="kd">function</span> <span class="nf">SomeServerComponent</span><span class="p">()</span> <span class="p">{</span>
<span class="k">return</span> <span class="o"><</span><span class="nx">button</span> <span class="nx">onClick</span><span class="o">=</span><span class="p">{()</span> <span class="o">=></span> <span class="nf">alert</span><span class="p">(</span><span class="dl">'</span><span class="s1">OHHAI</span><span class="dl">'</span><span class="p">)}</span><span class="o">></span><span class="nx">Click</span> <span class="nx">me</span><span class="o">!<</span><span class="sr">/button</span><span class="err">>
</span><span class="p">}</span>
<span class="c1">// ERROR !!!!</span>
</code></pre>
<button class="clipboard-button" data-clipboard-text="// ERROR !!!!
function SomeServerComponent() {
return <button onClick={() => alert('OHHAI')}>Click me!</button>
}
// ERROR !!!!
">Copy</button>
</div>
</section>
<section><a class='slide_break' href='nextjs.html#slide-15'>▻</a>
<h3 id="how-rsc-works"><a class="anchorlink" href="#how-rsc-works"><span>8.6</span> How RSC Works</a></h3><p>its complicated</p><p><a href="https://github.com/reactwg/server-components/discussions/5">RSC Components from Scratch</a></p><p><a href="https://www.plasmic.app/blog/how-react-server-components-work">How Server Components Work</a></p></section>
<section><a class='slide_break' href='nextjs.html#slide-16'>▻</a>
<h2 id="hosting-next-js"><a class="anchorlink" href="#hosting-next-js"><span>9</span> Hosting next.js</a></h2><p>Vercel, the company behind next.js, offers hosting on their platform. There is a free tier.</p><p>To host next.js you need:</p>
<ul>
<li>to run the build step to create static assets and javascript bundles</li>
<li>to run node.js on the server</li>
</ul>
<p>If you are using dokku a node.js buildpack will be chosen by default,
and do both for you. you might additionally consider:</p>
<ul>
<li>setting up permanent storage at <code>public/upload</code>, if you want to handle uploaded file and store them in the webspcae</li>
<li>setting up a database</li>
</ul>
</section>
<section><a class='slide_break' href='nextjs.html#slide-17'>▻</a>
<h2 id="telemetry"><a class="anchorlink" href="#telemetry"><span>10</span> Telemetry</a></h2><p>A next.js app sends at least 500 lines of information to Vercel.
See <a href="https://nextjs.org/telemetry">Telemetry</a>
to learn what information is sent and how to switch it off.</p><div class="interstitial code">
<pre><code class="highlight plaintext">[telemetry] {
"eventName": "NEXT_CLI_SESSION_STARTED",
"payload": {
"nextVersion": "13.4.7",
"nodeVersion": "v18.16.1",
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"imageEnabled": true,
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"basePathEnabled": false,
"i18nEnabled": false,
"locales": null,
"localeDomainsCount": null,
"localeDetectionEnabled": null,
"imageDomainsCount": 0,
"imageRemotePatternsCount": 0,
"imageSizes": "16,32,48,64,96,128,256,384",
"imageLoader": "default",
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"reactStrictMode": false,
"webpackVersion": 5,
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"appDir": true,
"pagesDir": false
}
}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
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"featureName": "build-lint",
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}
[telemetry] {
"eventName": "NEXT_PACKAGE_DETECTED",
"payload": {
"packageName": "@auth/prisma-adapter",
"packageVersion": "^1.0.0"
}
}
[telemetry] {
"eventName": "NEXT_PACKAGE_DETECTED",
"payload": {
"packageName": "@prisma/client",
"packageVersion": "^4.16.1"
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}
[telemetry] {
"eventName": "NEXT_PACKAGE_DETECTED",
"payload": {
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"packageVersion": "10.4.14"
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}
[telemetry] {
"eventName": "NEXT_PACKAGE_DETECTED",
"payload": {
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"packageVersion": "^2.30.0"
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[telemetry] {
"eventName": "NEXT_PACKAGE_DETECTED",
"payload": {
"packageName": "eslint",
"packageVersion": "8.43.0"
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}
[telemetry] {
"eventName": "NEXT_PACKAGE_DETECTED",
"payload": {
"packageName": "eslint-config-next",
"packageVersion": "13.4.7"
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}
[telemetry] {
"eventName": "NEXT_PACKAGE_DETECTED",
"payload": {
"packageName": "next",
"packageVersion": "13.4.7"
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[telemetry] {
"eventName": "NEXT_PACKAGE_DETECTED",
"payload": {
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[telemetry] {
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"packageName": "postcss",
"packageVersion": "8.4.24"
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[telemetry] {
"eventName": "NEXT_PACKAGE_DETECTED",
"payload": {
"packageName": "prisma",
"packageVersion": "^4.16.1"
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}
[telemetry] {
"eventName": "NEXT_PACKAGE_DETECTED",
"payload": {
"packageName": "react",
"packageVersion": "18.2.0"
}
}
[telemetry] {
"eventName": "NEXT_PACKAGE_DETECTED",
"payload": {
"packageName": "react-dom",
"packageVersion": "18.2.0"
}
}
[telemetry] {
"eventName": "NEXT_PACKAGE_DETECTED",
"payload": {
"packageName": "tailwindcss",
"packageVersion": "3.3.2"
}
}
[telemetry] {
"eventName": "NEXT_BUILD_COMPLETED",
"payload": {
"durationInSeconds": 10,
"totalAppPagesCount": 4,
"totalPageCount": 0,
"hasDunderPages": false,
"hasTestPages": false
}
}
[telemetry] {
"eventName": "NEXT_LINT_CHECK_COMPLETED",
"payload": {
"durationInSeconds": 0,
"eslintVersion": "8.43.0",
"lintedFilesCount": 14,
"lintFix": false,
"nextEslintPluginVersion": "13.4.7",
"nextEslintPluginErrorsCount": 0,
"nextEslintPluginWarningsCount": 0,
"nextRulesEnabled": {
"@next/next/no-html-link-for-pages": "error",
"@next/next/no-sync-scripts": "error",
"@next/next/google-font-display": "warn",
"@next/next/google-font-preconnect": "warn",
"@next/next/next-script-for-ga": "warn",
"@next/next/no-before-interactive-script-outside-document": "warn",
"@next/next/no-css-tags": "warn",
"@next/next/no-head-element": "warn",
"@next/next/no-img-element": "warn",
"@next/next/no-page-custom-font": "warn",
"@next/next/no-styled-jsx-in-document": "warn",
"@next/next/no-title-in-document-head": "warn",
"@next/next/no-typos": "warn",
"@next/next/no-unwanted-polyfillio": "warn",
"@next/next/inline-script-id": "error",
"@next/next/no-assign-module-variable": "error",
"@next/next/no-document-import-in-page": "error",
"@next/next/no-duplicate-head": "error",
"@next/next/no-head-import-in-document": "error",
"@next/next/no-script-component-in-head": "error"
},
"buildLint": true
}
}
[telemetry] {
"eventName": "NEXT_TYPE_CHECK_COMPLETED",
"payload": {
"durationInSeconds": 0,
"typescriptVersion": null
}
}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
"payload": {
"featureName": "experimental/optimizeCss",
"invocationCount": 0
}
}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
"payload": {
"featureName": "experimental/nextScriptWorkers",
"invocationCount": 0
}
}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
"payload": {
"featureName": "optimizeFonts",
"invocationCount": 1
}
}
[telemetry] {
"eventName": "NEXT_BUILD_OPTIMIZED",
"payload": {
"durationInSeconds": 13,
"staticPageCount": 0,
"staticPropsPageCount": 0,
"serverPropsPageCount": 0,
"ssrPageCount": 0,
"hasStatic404": true,
"hasReportWebVitals": false,
"rewritesCount": 0,
"headersCount": 0,
"redirectsCount": 0,
"headersWithHasCount": 0,
"rewritesWithHasCount": 0,
"redirectsWithHasCount": 0,
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"totalAppPagesCount": 4,
"staticAppPagesCount": 2,
"serverAppPagesCount": 2,
"edgeRuntimeAppCount": 0,
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"hasDunderPages": false,
"hasTestPages": false
}
}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
"payload": {
"featureName": "swcLoader",
"invocationCount": 1
}
}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
"payload": {
"featureName": "swcMinify",
"invocationCount": 1
}
}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
"payload": {
"featureName": "swcRelay",
"invocationCount": 0
}
}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
"payload": {
"featureName": "swcStyledComponents",
"invocationCount": 0
}
}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
"payload": {
"featureName": "swcReactRemoveProperties",
"invocationCount": 0
}
}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
"payload": {
"featureName": "swcExperimentalDecorators",
"invocationCount": 0
}
}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
"payload": {
"featureName": "swcRemoveConsole",
"invocationCount": 0
}
}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
"payload": {
"featureName": "swcImportSource",
"invocationCount": 0
}
}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
"payload": {
"featureName": "swcEmotion",
"invocationCount": 0
}
}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
"payload": {
"featureName": "swc/target/x86_64-apple-darwin",
"invocationCount": 0
}
}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
"payload": {
"featureName": "swc/target/x86_64-unknown-linux-gnu",
"invocationCount": 1
}
}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
"payload": {
"featureName": "swc/target/x86_64-pc-windows-msvc",
"invocationCount": 0
}
}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
"payload": {
"featureName": "swc/target/i686-pc-windows-msvc",
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}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
"payload": {
"featureName": "swc/target/aarch64-unknown-linux-gnu",
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}
}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
"payload": {
"featureName": "swc/target/armv7-unknown-linux-gnueabihf",
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}
}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
"payload": {
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"invocationCount": 0
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}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
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"featureName": "swc/target/aarch64-linux-android",
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}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
"payload": {
"featureName": "swc/target/arm-linux-androideabi",
"invocationCount": 0
}
}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
"payload": {
"featureName": "swc/target/x86_64-unknown-freebsd",
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}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
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}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
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"featureName": "swc/target/aarch64-unknown-linux-musl",
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}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
"payload": {
"featureName": "swc/target/aarch64-pc-windows-msvc",
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}
}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
"payload": {
"featureName": "turbotrace",
"invocationCount": 0
}
}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
"payload": {
"featureName": "transpilePackages",
"invocationCount": 0
}
}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
"payload": {
"featureName": "skipMiddlewareUrlNormalize",
"invocationCount": 0
}
}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
"payload": {
"featureName": "skipTrailingSlashRedirect",
"invocationCount": 0
}
}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
"payload": {
"featureName": "modularizeImports",
"invocationCount": 0
}
}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
"payload": {
"featureName": "next/image",
"invocationCount": 0
}
}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
"payload": {
"featureName": "next/future/image",
"invocationCount": 0
}
}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
"payload": {
"featureName": "next/legacy/image",
"invocationCount": 0
}
}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
"payload": {
"featureName": "next/script",
"invocationCount": 0
}
}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
"payload": {
"featureName": "next/dynamic",
"invocationCount": 0
}
}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
"payload": {
"featureName": "@next/font/google",
"invocationCount": 0
}
}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
"payload": {
"featureName": "@next/font/local",
"invocationCount": 0
}
}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
"payload": {
"featureName": "next/font/google",
"invocationCount": 1
}
}
[telemetry] {
"eventName": "NEXT_BUILD_FEATURE_USAGE",
"payload": {
"featureName": "next/font/local",
"invocationCount": 0
}
}
</code></pre>
<button class="clipboard-button" data-clipboard-text="[telemetry] {
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[telemetry] {
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[telemetry] {
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[telemetry] {
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[telemetry] {
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[telemetry] {
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[telemetry] {
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[telemetry] {
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[telemetry] {
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[telemetry] {
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[telemetry] {
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[telemetry] {
"eventName": "NEXT_PACKAGE_DETECTED",
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[telemetry] {
"eventName": "NEXT_PACKAGE_DETECTED",
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"packageName": "react",
"packageVersion": "18.2.0"
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[telemetry] {
"eventName": "NEXT_PACKAGE_DETECTED",
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[telemetry] {
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[telemetry] {
"eventName": "NEXT_BUILD_COMPLETED",
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[telemetry] {
"eventName": "NEXT_LINT_CHECK_COMPLETED",
"payload": {
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"eslintVersion": "8.43.0",
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"nextRulesEnabled": {
"@next/next/no-html-link-for-pages": "error",
"@next/next/no-sync-scripts": "error",
"@next/next/google-font-display": "warn",
"@next/next/google-font-preconnect": "warn",
"@next/next/next-script-for-ga": "warn",
"@next/next/no-before-interactive-script-outside-document": "warn",
"@next/next/no-css-tags": "warn",
"@next/next/no-head-element": "warn",
"@next/next/no-img-element": "warn",
"@next/next/no-page-custom-font": "warn",
"@next/next/no-styled-jsx-in-document": "warn",
"@next/next/no-title-in-document-head": "warn",
"@next/next/no-typos": "warn",
"@next/next/no-unwanted-polyfillio": "warn",
"@next/next/inline-script-id": "error",
"@next/next/no-assign-module-variable": "error",
"@next/next/no-document-import-in-page": "error",
"@next/next/no-duplicate-head": "error",
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[telemetry] {
"eventName": "NEXT_TYPE_CHECK_COMPLETED",
"payload": {
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}
[telemetry] {
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[telemetry] {
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