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[slug].js
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import Theme from '../../components/Theme'
import ms from 'ms'
import Markdown from 'markdown-to-jsx'
import Youtube from '../../components/Youtube'
import { getPostList, getPost } from '../../lib/data'
import { useRouter } from 'next/router'
import Head from 'next/head'
import Comments from '../../components/Comments'
export default function Post({ post }) {
const router = useRouter()
if (router.isFallback) {
return (
<Theme>
loading...
</Theme>
)
}
if (!post) {
return (
<Theme>
<Head>
<meta name="robots" content="noindex" />
</Head>
404 - Page not found!
</Theme>
)
}
return (
<Theme>
<Head>
<title>{post.title}</title>
<meta name='description' content={post.summary} />
<meta name='twitter:card' content='summary_large_image' />
<meta property='og:site_name' content='My Blog App' />
<meta property='og:url' content={post.url} />
<meta property='og:title' content={post.title} />
<meta property='og:description' content={post.summary} />
{post.image && (<meta property='og:image' content={post.image} />)}
</Head>
<div className='post'>
<div className='time'>Published {ms(Date.now() - post.createdAt, { long: true })} ago</div>
<h1>{post.title}</h1>
<div className='content'>
<Markdown
options={{
overrides: {
Youtube: { component: Youtube }
}
}}
>
{post.content}
</Markdown>
</div>
<b>Comments</b>
<Comments slug={post.slug} />
</div>
</Theme>
)
}
export async function getStaticPaths() {
const postList = await getPostList()
const paths = postList.map(post => ({
params: {
slug: post.slug
}
}))
return {
paths,
fallback: true
}
}
export async function getStaticProps({ params }) {
let post = null
try {
post = await getPost(params.slug)
} catch (err) {
if (err.status !== 404) {
throw err
}
}
post.url = `http://localhost:3009/post/${post.slug}`
post.summary = `${post.content.substr(0, 100)}`
return {
props: {
post
},
revalidate: 2
}
}