CODE EXAMPLE FOR JAVASCRIPT

Next / Sanity SSR client fetch

export const getStaticPaths = async () => {
  const query = `*[_type == "product"] {
    slug {
      current
    }
  }`

  const products = await client.fetch(query)
  const paths = products.map((product) => ({
    params: {
      slug: product.slug.current,
    },
  }))

  return {
    paths,
    fallback: 'blocking',
  }
}

export const getStaticProps = async ({ params: { slug } }) => {
  const query = `*[_type == "product" && slug.current == '${slug}'][0]`
  const productsQuery = '*[_type == "product"]'

  const product = await client.fetch(query)
  const products = await client.fetch(productsQuery)

  return {
    props: {
      product,
      products,
    },
  }
}