How to use exec() in nodejs - node.js

Question

I have this procedure xyz_users_list and it return list of users with exec xyz_users_list but how do i use it in nodejs app?
Code
index.js
'use strict';
const express = require('express');
const app = express();
const mysql = require('mysql');
var connection = require('express-myconnection');
require('dotenv').config();
app.use(
connection(mysql, {
host: process.env.DB_HOST,
user: process.env.DB_USERNAME,
password: process.env.DB_PASSWORD,
database: process.env.DB_DATABASE
}, 'request')
);
app.get('/', (req, res) => {
return res.sendFile(__dirname + '/index.html');
});
//all users
var Users = require('./routes/Users');
app.get('/users', Users.list);
Users.js
'use strict';
var response = require('../res');
const { exec } = require('child_process');
exports.list = function(req, res) {
req.getConnection(function(err, connection) {
connection.query(exec('xyz_users_list'), function(err, rows) {
if (err)
console.log("%s ", err);
response.success(rows, res);
});
});
};
this code returns:
TypeError: Cannot read property 'query' of undefined
If I use code below it works just fine but since i want to use exec it's returning error.
exports.list = function(req, res) {
req.getConnection(function(err, connection) {
connection.query('SELECT * FROM `users`', function(err, rows) {
if (err)
console.log("%s ", err);
response.success(rows, res);
});
});
};
any idea?
Update
here is result of my exec xyz_users_list in SQLQuery

Answer 1

Your connection is coming as undefined so it is showing this error. Try this version
const sql = require("mssql");
exports.list = async function(req, res) {
const connection = await sql.connect("connectionString");
const results = await connection.request().execute("xyz_users_list");
}
Need to add the corresponding return statements but you will get an idea.