man/pages/posts/[slug].js

97 lines
2.5 KiB
JavaScript

import fs from 'fs'
import matter from 'gray-matter'
import { MDXRemote } from 'next-mdx-remote'
import { serialize } from 'next-mdx-remote/serialize'
import dynamic from 'next/dynamic'
import Head from 'next/head'
import Link from 'next/link'
import path from 'path'
import CustomLink from '../../components/CustomLink'
import Layout from '../../components/Layout'
import { postFilePaths, POSTS_PATH } from '../../utils/mdxUtils'
// Custom components/renderers to pass to MDX.
// Since the MDX files aren't loaded by webpack, they have no knowledge of how
// to handle import statements. Instead, you must include components in scope
// here.
const components = {
a: CustomLink,
// It also works with dynamically-imported components, which is especially
// useful for conditionally loading components for certain routes.
// See the notes in README.md for more details.
TestComponent: dynamic(() => import('../../components/TestComponent')),
Head,
}
export default function PostPage({ source, frontMatter }) {
return (
<Layout>
<header>
<nav>
<Link href="/">
<a>👈 Go back home</a>
</Link>
</nav>
</header>
<div className="post-header">
<h1>{frontMatter.title}</h1>
{frontMatter.description && (
<p className="description">{frontMatter.description}</p>
)}
</div>
<main>
<MDXRemote {...source} components={components} />
</main>
<style jsx>{`
.post-header h1 {
margin-bottom: 0;
}
.post-header {
margin-bottom: 2rem;
}
.description {
opacity: 0.6;
}
`}</style>
</Layout>
)
}
export const getStaticProps = async ({ params }) => {
const postFilePath = path.join(POSTS_PATH, `${params.slug}.mdx`)
const source = fs.readFileSync(postFilePath)
const { content, data } = matter(source)
const mdxSource = await serialize(content, {
// Optionally pass remark/rehype plugins
mdxOptions: {
remarkPlugins: [],
rehypePlugins: [],
},
scope: data,
})
return {
props: {
source: mdxSource,
frontMatter: data,
},
}
}
export const getStaticPaths = async () => {
const paths = postFilePaths
// Remove file extensions for page paths
.map((path) => path.replace(/\.mdx?$/, ''))
// Map the path into the static paths object required by Next.js
.map((slug) => ({ params: { slug } }))
return {
paths,
fallback: false,
}
}