Unable to fetch Yelp Fusion with express backend

I am trying fetch Yelp data in my express backend and then store the data into the state to use in the frontend, but when I try to make the request, it will throw me error with AxiosError: Request failed with status code 400 in the backend terminal.

This is the code in my backend express routes/api folder for yelp, the item would be the the name of the term that pass in from frontend.

const express = require('express');
const router = express.Router();
const axios = require('axios');


router.post('/:item', async (req, res) => {

    axios.get("https://api.yelp.com/v3/businesses/search",{
        headers: {
            Authorization: `Bearer ${api_key}`
        },
        params: {
            term: req.params.item,
            location: "nyc"
        }
    })
        .then(response => {
            return res.json(response.data.businesses)
        })
        .catch(err => {
            console.log(err)
        })

})


module.exports = router;

I tried to make the fetch from fronetend with cors anywhere but it’s too easy to hit the limit, so I wanna make the request from the backend.