jsx

import { client } from "@/sanity/sanityClient";
import { groq } from "next-sanity";

const query = groq`*[_type == "post" && slug.current == $slug][0]{
    _id,
    title,
    "date": createdAt,
    "image": mainImage.asset->url,
    "slug": slug.current,
    'author': author->{name, 'picture': image.asset->url},
    body
  }`;

export default async function getSinglePost(slug) {
  if (client) {
    return (await client.fetch(query, { slug })) || {};
  }
  return {};
}