@mrjscrap/next-on-pages NPM

`@cloudflare/next-on-pages`

Reference:

Quick Start

npx create-next-app@latest my-app
Note that if you elect to use eslint, there are a couple of places you need to add return types to make the default template pass the pre-build checks.
cd into the new directory (e.g. cd my-app)
npm install -D @cloudflare/next-on-pages vercel

Configure the project to use the Edge Runtime:

Replace pages/api/hello.ts with the following:

// Next.js Edge API Routes: https://nextjs.org/docs/api-routes/edge-api-routes
import type { NextRequest } from "next/server";

export const config = {
  runtime: "experimental-edge",
};

export default async function handler(
  req: NextRequest
): Promise<Response> {
  return new Response(JSON.stringify({ name: "John Doe" }), {
    status: 200,
    headers: {
      "Content-Type": "application/json",
    },
  });
}

Add the following to next.config.js:

/** @type {import('next').NextConfig} */
const nextConfig = {
+ experimental: {
+   runtime: "experimental-edge",
+ },
  reactStrictMode: true,
  swcMinify: true,
};

module.exports = nextConfig;

git commit and git push to a GitHub/GitLab repository.
Create a Pages project, connect that repository, and select "Next.js" from the framework preset list.
Option Value
Build command npx @cloudflare/next-on-pages --experimental-minify
Build output directory .vercel/output/static
Add a NODE_VERSION environment variable set to 14 or greater.
In the Pages project Settings > Functions > Compatibility Flags, add the transformstream_enable_standard_constructor and streams_enable_constructors flags. These will not be necessary once they graduate to be on by default on 2022-11-30's compatibility date.
The project should now be ready to deploy. Create a new deployment.

Option	Value
Build command	`npx @cloudflare/next-on-pages --experimental-minify`
Build output directory	`.vercel/output/static`

`@cloudflare/next-on-pages` CLI

⚡️ @cloudflare/next-to-pages CLI
⚡️
⚡️ Usage: npx @cloudflare/next-to-pages [options]
⚡️
⚡️ Options:
⚡️
⚡️   --help:                Shows this help message
⚡️
⚡️   --skip-build:          Doesn't run 'vercel build' automatically
⚡️
⚡️   --experimental-minify: Attempts to minify the functions of a project (by de-duping webpack chunks)
⚡️
⚡️   --watch:               Automatically rebuilds when the project is edited
⚡️
⚡️
⚡️ GitHub: https://github.com/cloudflare/next-on-pages
⚡️ Docs: https://developers.cloudflare.com/pages/framework-guides/deploy-a-nextjs-site/

Local testing

In one terminal, run npx @cloudflare/next-on-pages --watch, and in another npx wrangler pages dev .vercel/output/static --compatibility-flags=streams_enable_constructors. We hope to soon make improvements to the refersh speed.

Build Output Configuration

`config.json` property	Support
version	`3`
routes `src`	✅
routes `dest`	🔄
routes `headers`	🔄
routes `methods`	✅
routes `continue`	🔄
routes `caseSensitive`	✅
routes `check`	🔄
routes `status`	🔄
routes `has`	✅
routes `missing`	✅
routes `locale`	🔄
routes `middlewarePath`	✅
images	❌ (see Cloudflare's Image Resizing documentation)
wildcard	🔄
overrides	🔄
cache	❌

Examples

Next.js 13's `app` Directory

Add the following to next.config.js:

/** @type {import('next').NextConfig} */
const nextConfig = {
  experimental: {
    runtime: "experimental-edge",
  + appDir: true,
  },
  reactStrictMode: true,
  swcMinify: true,
};

module.exports = nextConfig;

If you're following the Next.js 12 → 13 Upgrade Guide, delete any ./pages/_app.tsx and ./pages/index.tsx files and replace with ./app/layout.tsx and ./app/page.tsx:

// ./app/layout.tsx
import "../styles/globals.css";
import { FC } from "react";

const RootLayout: FC<{
  children: React.ReactNode;
}> = ({
  // Layouts must accept a children prop.
  // This will be populated with nested layouts or pages
  children,
}) => {
  return (
    <html lang="en">
      <body>{children}</body>
    </html>
  );
};

export default RootLayout;

// ./app/page.tsx
import { FC } from "react";
import styles from "../styles/Home.module.css";

const Home = async (): Promise<ReturnType<FC>> => {
  const uuid = await fetch("https://uuid.rocks/plain").then(
    async (response) => await response.text()
  );

  return (
    <div className={styles.container}>
      <main className={styles.main}>
        <h1 className={styles.title}>
          Welcome to <a href="https://nextjs.org">Next.js!</a>
        </h1>

        <p className={styles.description}>
          Get started by editing{" "}
          <code className={styles.code}>pages/index.tsx</code>
        </p>

        <p className={styles.description}>
          Here&apos;s a server-side UUID:
          <code className={styles.code}>{uuid}</code>
        </p>
      </main>
    </div>
  );
};

export default Home;

Edge API Routes

// ./pages/api/some_route.ts

import type { NextRequest } from "next/server";

export const config = {
  runtime: "experimental-edge",
};

export default async function handler(req: NextRequest) {
  return new Response(
    JSON.stringify({
      name: process.env.NEXT_RUNTIME,
    }),
    {
      status: 200,
      headers: {
        "content-type": "application/json",
      },
    }
  );
}

Server-side rendering (SSR) pages with `getServerSideProps()`

// ./pages/ssr.tsx

import type { NextPage } from "next";
import Head from "next/head";
import styles from "../styles/Home.module.css";

export const config = {
  runtime: "experimental-edge",
};

export const getServerSideProps = async () => {
  return {
    props: {
      runtime: process.env.NEXT_RUNTIME,
      uuid: await fetch("https://uuid.rocks/plain").then((response) =>
        response.text()
      ),
    },
  };
};

const Home: NextPage<{ runtime: string; uuid: string }> = ({
  runtime,
  uuid,
}) => {
  return (
    <div className={styles.container}>
      <Head>
        <title>Create Next App</title>
        <meta name="description" content="Generated by create next app" />
        <link rel="icon" href="/favicon.ico" />
      </Head>

      <main className={styles.main}>
        <h1 className={styles.title}>
          Welcome to{" "}
          <a href="https://nextjs.org">Next.js, running at the {runtime}!</a>
        </h1>

        <p className={styles.description}>
          Get started by editing{" "}
          <code className={styles.code}>pages/index.tsx</code>
        </p>

        <p className={styles.description}>
          Here&apos;s a server-side UUID:
          <code className={styles.code}>{uuid}</code>
        </p>
      </main>
    </div>
  );
};

export default Home;

Middleware

import { NextResponse } from "next/server";
import type { NextRequest } from "next/server";

// This function can be marked `async` if using `await` inside
export function middleware(request: NextRequest) {
  return NextResponse.redirect(new URL("/about-2", request.url));
}

export const config = {
  matcher: "/about/:path*",
};

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