Postgres results.rows[0] are undefined - node.js

Question

Not sure what I'm doing wrong, other than writing really messy code for a project I'm doing to learn Nodejs.
This used to be an async function/object but decided to get rid of try catch because my code ran twice for some reason I couldn't figure out.
Eliminating the try catch hasn't really stopped it from still running twice I think.
So the question: Why is my results.rows[0].email returning as undefined?
Sometimes it works sometimes it doesn't. I don't know why. Any help would rock.
router.post('/', (req, res, next) => {
const {password, email} = req.body
//var LoginPwd = await bcrypt.hash(password, 5);
const loginPlainPwd = password;
pool.query("SELECT password, id, email FROM companies_admins WHERE email=$1", [email], (err, results) => {
if (err)
{
throw err;
}
const dbemail = results.rows[0].email
const dbPwd = results.rows[0].password
const dbid = JSON.stringify(results.rows[0].id)
console.log('results.rows[0] = ' + results.rows[0])
console.log('loginPlainPwd = ' + loginPlainPwd)
console.log('dbPwd = ' + dbPwd)
//console.log(JSON.stringify(results.rows[0]))
//res.cookie('userId', id)
//res.sendFile(path.join(__dirname, './views/account.html'));
//bcrypt.compare(loginPlainPwd, dbPwd, (err, res) => {
if (loginPlainPwd != dbPwd)
{
console.log("loginPlainPwd != dbPwd")
/////////////////////////////////////////////?SHOULD THIS BE OUTSIE POOL.QUERY??????
console.log('err')
return res.status(401).json({
message: 'Auth failed'
});
}
else if (loginPlainPwd == dbPwd)
{
//token variable signage/creation with user data and expiration (i also included .env)
const token = jwt.sign(
{
email: dbemail,
userId: dbid,
},
process.env.JWT_KEY,
{
expiresIn: "1h"
},
);
console.log("passwords match: token created:" + token)
res.cookie('userId', token,)
console.log('cookie should be sent')
databaseJWTin(err, token, dbemail); // database function to store jwttoken from below to store jwt in database
console.log('databaseJWT function should have fired')
//had to use ../ below because path was going into routes directory for some reason
res.sendFile(path.join(__dirname, '../views/account.html'))
//return res.status(200).json({
// message: "Auth successful",
// token: token
//});
}
//res.sendFile(path.join(__dirname, './views/account.html'))
});
//res.sendFile(path.join(__dirname, './views/account.html'));
})

Answer 1

Please check whether result contains data in it.
router.post('/', (req, res, next) => {
const { password, email } = req.body
//var LoginPwd = await bcrypt.hash(password, 5);
const loginPlainPwd = password;
pool.query("SELECT password, id, email FROM companies_admins WHERE email=$1", [email], (err, results) => {
if (err) {
throw err;
}
if (results && results.length>0) {
const dbemail = results.rows[0].email
const dbPwd = results.rows[0].password
const dbid = JSON.stringify(results.rows[0].id)
console.log('results.rows[0] = ' + results.rows[0])
console.log('loginPlainPwd = ' + loginPlainPwd)
console.log('dbPwd = ' + dbPwd)
//console.log(JSON.stringify(results.rows[0]))
//res.cookie('userId', id)
//res.sendFile(path.join(__dirname, './views/account.html'));
//bcrypt.compare(loginPlainPwd, dbPwd, (err, res) => {
if (loginPlainPwd != dbPwd) {
console.log("loginPlainPwd != dbPwd")
/////////////////////////////////////////////?SHOULD THIS BE OUTSIE POOL.QUERY??????
console.log('err')
return res.status(401).json({
message: 'Auth failed'
});
}
else if (loginPlainPwd == dbPwd) {
//token variable signage/creation with user data and expiration (i also included .env)
const token = jwt.sign(
{
email: dbemail,
userId: dbid,
},
process.env.JWT_KEY,
{
expiresIn: "1h"
},
);
console.log("passwords match: token created:" + token)
res.cookie('userId', token)
console.log('cookie should be sent')
databaseJWTin(err, token, dbemail); // database function to store jwttoken from below to store jwt in database
console.log('databaseJWT function should have fired')
//had to use ../ below because path was going into routes directory for some reason
res.sendFile(path.join(__dirname, '../views/account.html'))
//return res.status(200).json({
// message: "Auth successful",
// token: token
//});
}
//res.sendFile(path.join(__dirname, './views/account.html'))
}
});
//res.sendFile(path.join(__dirname, './views/account.html'));
})