sanity-algolia get error when using pt::text - next.js

Question

I'm trying to integrate algolia search with sanity CMS using the sanity-algolia library (ref https://www.sanity.io/plugins/sanity-algolia)
But when i try to get the plain text from Portable Text rich text content using the pt::text function.
i get expected '}' following object body , and i dont really know where im missing a bracket.
(another note: since im hosting sanity by using sanity start, I am using nextjs (my frontend) to run the function instead using the /api routes in nextJS) So sanity has a webhook to this route.
details about the error:
details: {
description: "expected '}' following object body",
end: 174,
query: '* [(_id in $created || _id in $updated) && _type in $types] {\n' +
' _id,\n' +
' _type,\n' +
' _rev,\n' +
' _type == "post" => {\n' +
' title,\n' +
' "path": slug.current,\n' +
' "body": pt::text(body)\n' +
' }\n' +
'}',
start: 107,
type: 'queryParseError'
}
this is the serverless function im running:
export default async function handler(req, res) {
if (req.headers["content-type"] !== "application/json") {
res.status(400);
res.json({ message: "Bad request" });
return;
}
const algoliaIndex = algolia.initIndex("dev_kim_miles");
const sanityAlgolia = indexer(
{
post: {
index: algoliaIndex,
projection: `{
title,
"path": slug.current,
"body": pt::text(body)
}`,
},
},
(document) => {
console.log(document);
return document;
},
(document) => {
if (document.hasOwnProperty("isHidden")) {
return !document.isHidden;
}
return true;
}
);
return sanityAlgolia
.webhookSync(sanityClient, req.body)
.then(() => res.status(200).send("ok"));
}
and my post schema from sanity:
export default {
name: 'post',
title: 'Post',
type: 'document',
fields: [
{
name: 'title',
title: 'Title',
type: 'string',
},
{
name: 'slug',
title: 'Slug',
type: 'slug',
options: {
source: 'title',
maxLength: 96,
},
},
{
name: 'author',
title: 'Author',
type: 'reference',
to: {type: 'author'},
},
{
name: 'mainImage',
title: 'Main image',
type: 'image',
options: {
hotspot: true,
},
},
{
name: 'categories',
title: 'Categories',
type: 'array',
of: [{type: 'reference', to: {type: 'category'}}],
},
{
name: 'publishedAt',
title: 'Published at',
type: 'datetime',
},
{
name: 'body',
title: 'Body',
type: 'blockContent',
},
{
name: 'extra',
title: 'extra',
type: 'blockContent',
},
],
preview: {
select: {
title: 'title',
author: 'author.name',
media: 'mainImage',
},
prepare(selection) {
const {author} = selection
return Object.assign({}, selection, {
subtitle: author && `by ${author}`,
})
},
},
}

Answer 1

sanity api v1 doesnt work with functions, I was using
const sanityClient = client({
dataset: "production",
useCdn: true,
projectId: "project_id",
});
which defaults to v1, but in order to use function i added a apiVersion parameter, which made it use later api version:
const sanityClient = client({
dataset: "production",
useCdn: true,
projectId: "9dz8b3g1",
apiVersion: "2021-03-25",
});