Search API with multiple filed - NODE JS

 config.js - 

const mongoose=require('mongoose')

mongoose.connect('mongodb://localhost:27017/e-Comm')

Product.js:

const mongoose=require('mongoose');

const productSchema=new mongoose.Schema({

    name:String,

    price:Number,

    brand:String,

    category:String

});

 module.exports=mongoose.model('products', productSchema);

index.js:

const express=require('express');

require('./config');

const product=require('./product');

const app=express();

app.use(express.json());

app.post('/create', async(req, resp)=>{

    let data=new product(req.body);

    let result=await data.save();

    console.log(result)

    resp.send(result);

});

app.get('/list',async (req, resp)=>{

    let data=await product.find();

    resp.send(data);

});

app.delete('/delete/:_id',async (req, resp)=>{

    console.log(req.params)

    let data= await product.deleteOne(req.params);

    resp.send(data);

});

app.put("/update/:_id", async(req, resp)=>{

    console.log(req.params)

    let data=await product.updateOne(

 req.params,

 {

    $set:req.body

 }

   

);

resp.send(data);

})

app.get('/search/:key', async (req,resp)=>{

    console.log(req.params.key)

    let data=await product.find(

        {

            "$or":[

                {"name":{$regex:req.params.key}},

                {"brand":{$regex:req.params.key}}

            ]

        }

    )

    resp.send(data)

})

app.listen(5000);