set up mssql-session-store in node.js - node.js

Question

I'm trying to use mssql-session-store as nodejs (express) store for session:
https://www.npmjs.com/package/mssql-session-store
This is how it should be configured(from npm page):
app.use(session({
secret: 'keyboard cat',
resave: false,
saveUninitialized: false,
store: new MssqlStore(options) // see options below
}));
var options = {
connection: existingConnection,
ttl: 3600,
reapInterval: 3600,
reapCallback: function() { console.log('expired sessions were removed);
}
};
My problem is with the options.connection. It should be "Optional instance of a Connection from mssql".
This connection establishment is an async process (from the npm page):
const sql = require('mssql')
async () => {
try {
await sql.connect('mssql://username:password#localhost/database')
const result = await sql.query`select * from mytable where id =
${value}`
console.dir(result)
} catch (err) {
// ... error checks
}
}
This is how express session is being defined in the nodejs initialization:
app.use(session({
name:<session name>,
key: <session key id>,
resave:false,
saveUninitialized:false,
secure: process.env.NODE_ENV ==="production",
secret:<secret string>,
store: new MssqlStore(options), //This is optional - for use when using sql server as a store
cookie:{
//httpOnly: true,
secure: process.env.NODE_ENV ==="production",
expires: config.expressSession.cookieLifeTime
}
}));
The problem is that establishment of the connection is an async process. I've tried several versions to both use the express-session in the application, but doing so just after the connection has been set up (async).
See my basic code (initialization of node.js - servre.js file):
const express = require('express');
const app = express();
const sql = require('mssql');
const session = require ('express-session');
const MssqlStore = require ('mssql-session-store')(session);
var sqlStore = null;
var store = null;
var mssqlConfig =
{
user: <user>
password: <password>,
server: <server name>
database: <database>,
options: {
encrypt: true // Use this if you're on Windows Azure
}
}
I've tried setting the session in the app in the connetion promise:
var sqlConnection = null;
async function getConnectedConnectionOptions()
{
try
{
sqlConnection = await sql.connect(<connection string>);
return await Promise.resolve(sqlconnection: sqlConnection);
} catch (err)
{
sqlConnection = null;
}
}
getConnectedConnectionOptions(),then(result =>
app.use(session({
name:<session name>,
key: <session key id>,
resave:false,
saveUninitialized:false,
secure: process.env.NODE_ENV ==="production",
secret:<secret string>,
store: new MssqlStore(result) ,
cookie:{
//httpOnly: true,
secure: process.env.NODE_ENV ==="production",
expires: config.expressSession.cookieLifeTime
}
}));
but then there's a scope problem where session is not defined in the global app.
Please support.

Answer 1

this is inside example folder in the mssql-session-store module
var dbConfig = {
server: "localhost\\sqlexpress",
database: "sessiontest",
user: "sa",
password: "atonan"
};
var start = function(callback) {
callback = callback || function() {};
sql.connect(dbConfig, function(err) {
if (err) return callback(err);
var app = express();
app.use(session({
secret: '991E6B44882C4593A46C0DDFCA23E06A',
resave: false,
saveUninitialized: false,
store: new MssqlStore({ reapInterval: 10, ttl: 10 })
}));