vercel__next.js/examples/cms-takeshape/pages/posts/[slug].js

import { useRouter } from "next/router";
import ErrorPage from "next/error";
import { getImageUrl } from "takeshape-routing";
import Container from "../../components/container";
import PostBody from "../../components/post-body";
import MoreStories from "../../components/more-stories";
import Header from "../../components/header";
import PostHeader from "../../components/post-header";
import SectionSeparator from "../../components/section-separator";
import Layout from "../../components/layout";
import { getAllPostsWithSlug, getPostAndMorePosts } from "../../lib/api";
import PostTitle from "../../components/post-title";
import Head from "next/head";
import { CMS_NAME } from "../../lib/constants";
import markdownToHtml from "../../lib/markdownToHtml";

export default function Post({ post, morePosts, preview }) {
  const router = useRouter();
  if (!router.isFallback && !post?.slug) {
    return <ErrorPage statusCode={404} />;
  }
  return (
    <Layout preview={preview}>
      <Container>
        <Header />
        {router.isFallback ? (
          <PostTitle>Loading…</PostTitle>
        ) : (
          <>
            <article>
              <Head>
                <title>
                  {`${post.title} | Next.js Blog Example with ${CMS_NAME}`}
                </title>
                <meta
                  property="og:image"
                  content={getImageUrl(post.coverImage, {
                    fm: "jpg",
                    fit: "crop",
                    w: 2000,
                    h: 1000,
                  })}
                />
              </Head>
              <PostHeader
                title={post.title}
                coverImage={post.coverImage}
                date={post.date}
                author={post.author}
              />
              <PostBody content={post.content} />
            </article>
            <SectionSeparator />
            {morePosts.length > 0 && <MoreStories posts={morePosts} />}
          </>
        )}
      </Container>
    </Layout>
  );
}

export async function getStaticProps({ params, preview = false }) {
  const data = await getPostAndMorePosts(params.slug, preview);
  const content = await markdownToHtml(
    (data?.post?.items || [])[0]?.content || "",
  );

  return {
    props: {
      preview,
      post: {
        ...(data?.post?.items || [])[0],
        content,
      },
      morePosts: data?.morePosts.items ?? [],
    },
  };
}

export async function getStaticPaths() {
  const allPosts = await getAllPostsWithSlug();
  return {
    paths: allPosts?.map((post) => `/posts/${post.slug}`) || [],
    fallback: true,
  };
}