Как я могу передать параметры в curl в базу данных mariadb с Node.js?

Question

Итак, вот мой вопрос, я хочу передать параметры в curl следующим образом:

curl -X POST -H "Accept: Application/json" -H "Content-Type: application/json"  localhost:8000/api/addBrand -d '{"title":"radio","description":"radio","country":"Maroc","websiteurl":"radio.ma","livestream":"radio.ma/livestream"}'

Мой код:

const express = require('express');
const mariadb = require('mariadb/callback');

const db = mariadb.createConnection({
 host: 'localhost',
 user: 'root',
 password: 'root',
 database: 'nodemysql'
});

 db.connect((err) => {
 if(err){
        throw err;
    }
 else{
    console.log('MariaDB Connected...');
 }
 });

 const app = express();
app.get('/api/createdb', (req, res) => {
    let sql = 'CREATE DATABASE nodemysql';
    db.query(sql, (err, result) => {
        if(err) throw err;
        console.log(result);
        res.send('Database created...');
    });
});

// Insert brand
app.post('/api/addBrand', (req, res) =>{
            var data = {
                            title : req.params.title,
                            description : req.params.description,
                            country : req.params.country,
                            websiteurl : req.params.websiteurl,
                            livestream : req.params.livestream
            }
        var params =[data.title, data.description, data.country, data.websiteurl, data.livestream]
        let sql = 'INSERT INTO Brand(title, description, country, websiteurl, livestream) VALUES(?,?,?,?,?)'
            let query = db.query(sql, params, (err, result) => {
                            if(err) throw err;
                            console.log(result);
                            res.send('Brand added...');
                        });
});

app.listen('8000', () => {
    console.log('Server started on port 8000');
});

но у меня есть эта ошибка:

SqlError: Parameter at position 1 is undefined
sql: INSERT INTO Brand(title, description, country, websiteurl, livestream) VALUES(?,?,?,?,?) - parameters:[undefined,undefined,undefined,undefined,undefined]
    at Object.module.exports.createError (/home/admin/node_modules/mariadb/lib/misc/errors.js:55:10)
    at Query.throwNewError (/home/admin/node_modules/mariadb/lib/cmd/command.js:60:16)
    at Query.validateParameters (/home/admin/node_modules/mariadb/lib/cmd/query.js:182:14)
    at Query.start (/home/admin/node_modules/mariadb/lib/cmd/query.js:53:17)
    at _addCommandEnablePipeline (/home/admin/node_modules/mariadb/lib/connection.js:1157:11)
    at ConnectionCallback.Connection._queryCallback (/home/admin/node_modules/mariadb/lib/connection.js:532:5)
    at /home/admin/test.js:53:21
    at Layer.handle [as handle_request] (/home/admin/node_modules/express/lib/router/layer.js:95:5)
    at next (/home/admin/node_modules/express/lib/router/route.js:137:13)
    at Route.dispatch (/home/admin/node_modules/express/lib/router/route.js:112:3) {
  fatal: false,
  errno: 45017,
  sqlState: 'HY000',
  code: 'ER_PARAMETER_UNDEFINED'

Может кто-нибудь мне помочь? Я застрял. Спасибо!