Mongoose text index search returns empty array - mongodb

Question

I'm trying to query indexes, but I receive an empty array. I can't find what's wrong with my code. I used two methods to create the index: 1) VideoSchema.index() and 2) in the schema itself, both of them don't work. I checked the mongodb and it seems that indexes are created correctly, so I don't know what I do wrong.
const mongoose = require("mongoose");
const VideoSchema = mongoose.Schema(
{
user: {
type: mongoose.ObjectId,
required: true,
ref: "user",
},
title: {
type: String,
maxLength: 100,
text: true,
},
description: {
type: String,
text: true,
},
publishDate: {
type: Date,
},
views: {
type: Number,
default: 0,
},
likes: {
type: Number,
default: 0,
},
dislikes: {
type: Number,
default: 0,
},
comments: [
{
type: mongoose.ObjectId,
ref: "comment",
},
],
urls: {
video_url: {
type: String,
required: true,
},
thumbnail_url: {
type: String,
},
preview_url: {
type: String,
required: true,
},
},
private: {
type: Boolean,
default: 0,
},
category: {
type: String,
default: "",
},
duration: {
type: Number,
required: true,
},
},
{ timestamps: true }
);
// VideoSchema.index({ title: "text", description: "text" });
// export model user with UserSchema
module.exports = mongoose.model("video", VideoSchema);
The query:
const express = require("express");
const router = express.Router();
const Video = require("../model/Video");
router.post("/", (req, res) => {
const query = req.body.query;
Video.find({ $text: { $search: query } }, { score: { $meta: "textScore" } })
.sort({ score: { $meta: "textScore" } })
.exec(function (error, results) {
if (error) return res.status(400).send(error);
res.status(200).json({ results });
});
});
module.exports = router;

Answer 1

As you are fetching data from your Database it´s a good practice and makes the code clearer if you use the 'GET' method. If you do so, there is no need to add the score option to the query since V.4.4
const express = require("express");
const router = express.Router();
const Video = require("../model/Video");
router.get("/", (req, res) => {
const query = req.query.YOUR_QUERY_PARAMETER;
Video.find({ $text: { $search: query }})
.sort({ score: { $meta: "textScore" } })
.exec(function (error, results) {
if (error) return res.status(400).send(error);
res.status(200).json({ results });
});
});
module.exports = router;
If the problem persists:
Try to add the wild card text indexing to see if the problem is within it as follows:
VideoSchema.index({'$**': 'text'});
If so, then drop the collection for a fresh start on the indexing and then append your text indexes like this:
VideoSchema.index({ title: "text", description: "text" });
Create new dummy items and then check again.
Make sure you read the exceptions shown in the MongoDB documentation:
https://docs.mongodb.com/manual/reference/operator/query/text/

Answer 2

It seems that I resolved the problem. I noticed that in the express js the 'query' keyword is used for 'get' request params, so I decided to change this variable to 'search', so now it is like underneath and it is working!
router.get("/", (req, res) => {
const { search } = req.query;
Video.find(
{ $text: { $search: search } },
{ score: { $meta: "textScore" } }
)
.sort({ score: { $meta: "textScore" } })
.exec(function (error, results) {
if (error) return res.status(400).send(error);
res.status(200).json({ results });
});
});
But I've noticed that I'm getting only one video instead of two that contains the 'obs' in the title, so now I will need to deal with that.
Thank you so much for your time and effort!