mssql node js package not found when running azure function - node.js

Question

I'm trying to connect SQL server inside azure function locally,
and I'm getting the following error,
[error] Worker was unable to load function timerTriggerWithEventHub: 'Error: Cannot find module 'mssql''
But I have installed mssql package in my machine,
here is my code,
const sql = require('mssql').Request;
module.exports = async function (context, myTimer) {
var config = {
user: 'sa',
password: 'Gain#123',
server: 'DESKTOP-J7IPQ7H',
database: 'RealTimeProductSales'
};
sql.connect(config, function (err) {
if (err) console.log(err);
// create Request object
var request = new Request();
// query to the database and get the records
request.query('select * from dbo.ProdTC', function (err, recordset) {
if (err) console.log(err)
console.log(recordset)
// send records as a response
// res.send(recordset);
});
});
// console.log('saranraj')
// console.log(context,myTimer)
// var timeStamp = new Date().toISOString();
// if (myTimer.IsPastDue)
// {
// context.log('JavaScript is running late!');
// }
// context.log('JavaScript timer trigger function ran!', timeStamp);
// return "{'name':'saran'}"
};
when I install the package i'm getting output like this
npm WARN saveError ENOENT: no such file or directory, open 'C:\Users\SivaSakthiVelan\package.json'
npm WARN enoent ENOENT: no such file or directory, open 'C:\Users\SivaSakthiVelan\package.json'
npm WARN SivaSakthiVelan No description
npm WARN SivaSakthiVelan No repository field.
npm WARN SivaSakthiVelan No README data
npm WARN SivaSakthiVelan No license field.
+ mssql#5.1.0
updated 1 package and audited 11650 packages in 6.832s
found 226 vulnerabilities (42 moderate, 184 high)
run `npm audit fix` to fix them, or `npm audit` for details

Answer 1

It seems the package.json is missing.
You can try to run the command below:
npm init -f
This command above will help you initialize a package.json (-f means force).
You can check the dependencies in your package.json.
And then run the command below:
npm install mssql