Full Text Search Fastify with Mongoose - mongodb

Question

Im trying to get a Full Text Search working through Fastify and Mongoose. But it returns an empty array.
There is no info online about this, so I just played with it for a while.
in db.ts I set the:
useCreateIndex: true
The Model (Benefit.ts):
export class Benefit extends BaseModel {
_id: ObjectID;
#prop({required: true, unique: true, index: true, text: true}) <-- set index & text to true
name: string;
#prop({index: true, text: true})
details: string;
const BenefitModel = getModelForClass(Benefit);
BenefitModel.createIndexes(err => console.log('ERROR', err)); <-- this is what I tried // err=null
export default BenefitModel;
The actual search (Benefit.controller.ts):
const searchResults = await benefitService.find(
{$text: {$search: textSearch}}, <-- textSearch is valid and comes as a string
{score: {$meta: 'textScore'}},
);
the return is with status 200:
{
"status": 1,
"results": []
}
I think I dont set the index correctly?
Any help will be greatly appriciated.
And also will live long, because there is no info about it anywhere.
Thanks.
EDIT:
current route setup
export class BenefitController {
protected routes: fastify.RouteOptions[];
constructor() {
this.routes = [];
this.setupRoutes();
}
public getRoutes(): fastify.RouteOptions[] {
return this.routes;
}
protected setupRoutes(): void {
this.routes.push({
method: 'POST',
url: '/searchBenefit',
handler: this.searchBenefit,
});
}
new BenefitController().getRoutes().forEach((route: fastify.RouteOptions) => {
fastify.route(route);
});
BTW I did set the indexes properly cause when I do listIndexes()
I get:
{ v: 2, key: { _id: 1 }, name: '_id_', ns: 'some-address.db.benefits' },
{
v: 2,
unique: true,
key: { name: 1 },
name: 'name_1',
ns: 'some-address.db.benefits',
background: true
},
{
v: 2,
key: { details: 1 },
name: 'details_1',
ns: 'some-address.db.benefits',
background: true
},
{
v: 2,
key: { _fts: 'text', _ftsx: 1 },
name: 'details_text',
ns: 'some-address.db.benefits',
background: true,
weights: { details: 1 },
default_language: 'english',
language_override: 'language',
textIndexVersion: 3
}