import { getPreviewPostBySlug } from "@lib/api";
export default async function preview(req, res) {
const { secret, slug } = req.query;
if (secret !== process.env.DOTCMS_PREVIEW_SECRET || !slug) {
return res.status(401).json({ message: "Invalid token" });
}
// Fetch the headless CMS to check if the provided `slug` exists
const post = await getPreviewPostBySlug(slug, true);
// If the slug doesn't exist prevent preview mode from being enabled
if (Object.keys(post.post).length < 1) {
return res.status(401).json({ message: "Invalid slug" });
}
// Enable Draft Mode by setting the cookie
res.setDraftMode({ enable: true });
// Redirect to the path from the fetched post
const url = `/posts/${post.post.urlTitle}`;
res.setHeader("Content-Type", "text/html");
res.write(
`
`,
);
res.end();
}