Develop Reference

Connection between MariaDB and NodeJS not working

I'm using a vServer from Ionos for a little project. I installed a MariaDB and NodeJS. Currently I'm trying to connect them both. Here is my code:
const mariadb = require('mariadb');
const pool = mariadb.createPool({
host: 'localhost',
user:'root',
password: 'xxxxxxxxx',
database: 'christmastrees',
connectionLimit: 5,
});
async function asyncFunction() {
let conn;
try {
conn = await pool.getConnection();
const rows = await conn.query("SELECT * from bäume");
console.log(rows); //[ {val: 1}, meta: ... ]
} catch (err) {
throw err;
} finally {
if (conn) return conn.end();
}
}
But when executing the file (node app), I get an error message after a few seconds
Error: connect ECONNREFUSED 127.0.0.1:3306
at TCPConnectWrap.afterConnect [as oncomplete] (node:net:1157:16)
From event:
at _registerHandshakeCmd (/root/server/node_modules/mariadb/lib/connection.js:745:11)
at /root/server/node_modules/mariadb/lib/connection.js:57:11
at new Promise (<anonymous>)
at Connection.connect (/root/server/node_modules/mariadb/lib/connection.js:56:16)
at createConnectionPoolPromise (/root/server/node_modules/mariadb/lib/pool-promise.js:31:8)
at creationTryout (/root/server/node_modules/mariadb/lib/pool-base.js:373:9)
at listOnTimeout (node:internal/timers:557:17)
at processTimers (node:internal/timers:500:7) {
errno: -111,
code: 'ECONNREFUSED',
syscall: 'connect',
address: '127.0.0.1',
port: 3306,
fatal: true
}
So I searched for help and after 2 hours I literally found only one Idea. I added this line of code to my connection...
port: '/var/run/mysqld/mysqld.sock'
I tryed again to use node app, but this time I didn't get an error message, it is loading forever and nothing happens.
I would be so grateful for any help...

So I found the solution to my problem.
I checked if my MariaDB Service is even running and no it wasn't ^^

Error: connect ECONNREFUSED 127.0.0.1:465 send mail

I use the email account of my site contact#monsite.com to send smtp alert messages to the email of my users. but it still gives me this error
Error: connect ECONNREFUSED 127.0.0.1:465
at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1137:16) {
errno: 'ECONNREFUSED',
code: 'ESOCKET',
syscall: 'connect',
address: '127.0.0.1',
port: 465,
command: 'CONN'
}
here is my code
// send mail function
exports.sendMailer = (optionsTransporterMail = OptionsTransporterMail, optionsMail = OptionsMail, callback) => {
const nodemailer = require('nodemailer');
let transporter = nodemailer.createTransport(optionsTransporterMail);
transporter.sendMail(optionsMail, function (err, info) {
callback(err, info)
});
}
sendMailer({
service: 'mail.mywebsite.com',
port: 465,
secure: true,
auth: {
user: 'contact#mywebsite.com',
pass: '12345678'
}
}, {
from: '"My app <contact#mywebsite.com>',
to: user#domain.com,
subject: "Notify",
text: "Hello worlds",
html: "Hello worlds"
}, (err, info) => {
if err console.log(err);
console.log(info)
})
it still gives this error
Error: connect ECONNREFUSED 127.0.0.1:465
at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1137:16) {
errno: 'ECONNREFUSED',
code: 'ESOCKET',
syscall: 'connect',
address: '127.0.0.1',
port: 465,
command: 'CONN'
}

I assume you want to use mail.mywebsite.com in order to send an email. In those terms, you have to set up host value in options, because it seems like by default it uses localhost (127.0.0.1).
Please try the following code:
sendMailer({
host: 'mail.mywebsite.com',
port: 465,
secure: true,
auth: {
user: 'contact#mywebsite.com',
pass: '12345678'
}
}, {
from: '"My app <contact#mywebsite.com>',
to: user#domain.com,
subject: "Notify",
text: "Hello worlds",
html: "Hello worlds"
}, (err, info) => {
if err console.log(err);
console.log(info)
})

Nodemailer was sending mails but then it suddenly stopped, now it's giving me this error

This worked like some days ago but then it stopped. I really don't know what's going on. PS: I am on a Mac and it does not look like it's a firewall issue.
exports.sendEmail = (recipient, subject) => {
const mailTransporter = nodeMailer.createTransport({
service: 'gmail',
host: 'smtp.gmail.com',
port: 465,
secure: true,
auth: {
user: process.env.EMAIL_USER,
pass: process.env.EMAIL_PASS
}
})
const mailOptions = {
from: process.env.EMAIL_USER,
to: recipient,
subject,
html: htmlTemplate(generatePasswordResetLink(),recipient),
}
return mailTransporter.sendMail(mailOptions, (error, success) => {
if (error) {
console.log(error);
return error;
}
return success;
})
The console.log(error); in the code spits this
{ Error: connect ECONNREFUSED 74.125.133.109:465
at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1097:14)
errno: 'ECONNREFUSED',
code: 'ESOCKET',
syscall: 'connect',
address: '74.125.133.109',
port: 465,
command: 'CONN' }
And I have tried like everything possible to get it to work. I have also restarted my laptop.
PS:
user: 'a valid gmail account',
pass: 'correct pass for the account'

Trouble making nodejs mysql connection

I am trying to make a simple connection between my nodejs server and my mysql db (using Microsoft SQL server manager studio v14), below is my code and the error message appearing in my console window.
here is my code:
var express = require('express');
var app = express();
var sql = require("mssql");
app.get('/', function (req, res) {
// config for your database
var config = {
user: 'superadmin',
password: '***',
server: 'localhost',
database: 'XXX'
};
// connect to your database
sql.connect(config, function (err) {
if (err) console.log(err);
// create Request object
var request = new sql.Request();
// query to the database and get the records
request.query('select * from Schools', function (err, recordset) {
if (err) console.log(err)
// send records as a response
res.send(recordset);
});
});
});
var server = app.listen(5000, function () {
console.log('Server is running..');
});
The error I am getting looks like this:
Server is running..
tedious deprecated The default value for `options.encrypt` will change from `false` to `true`. Please pass `false` explicitly if you want to retain current behaviour. node_modules\mssql\lib\tedious.js:212:23
{ ConnectionError: Failed to connect to localhost:1433 - Could not connect (sequence)
at Connection.tedious.once.err (C:\Users\smr09\Desktop\Code\ou\db_test\node_modules\mssql\lib\tedious.js:216:17)
at Object.onceWrapper (events.js:275:13)
at Connection.emit (events.js:182:13)
at Connection.socketError (C:\Users\smr09\Desktop\Code\ou\db_test\node_modules\tedious\lib\connection.js:1004:14)
at C:\Users\smr09\Desktop\Code\ou\db_test\node_modules\tedious\lib\connection.js:869:25
at SequentialConnectionStrategy.connect (C:\Users\smr09\Desktop\Code\ou\db_test\node_modules\tedious\lib\connector.js:154:9)
at Socket.onError (C:\Users\smr09\Desktop\Code\ou\db_test\node_modules\tedious\lib\connector.js:170:16)
at Socket.emit (events.js:182:13)
at emitErrorNT (internal/streams/destroy.js:92:8)
at emitErrorAndCloseNT (internal/streams/destroy.js:59:3)
code: 'ESOCKET',
originalError:
{ ConnectionError: Failed to connect to localhost:1433 - Could not connect (sequence)
at ConnectionError (C:\Users\smr09\Desktop\Code\ou\db_test\node_modules\tedious\lib\errors.js:12:12)
at Connection.socketError (C:\Users\smr09\Desktop\Code\ou\db_test\node_modules\tedious\lib\connection.js:1004:30)
at C:\Users\smr09\Desktop\Code\ou\db_test\node_modules\tedious\lib\connection.js:869:25
at SequentialConnectionStrategy.connect (C:\Users\smr09\Desktop\Code\ou\db_test\node_modules\tedious\lib\connector.js:154:9)
at Socket.onError (C:\Users\smr09\Desktop\Code\ou\db_test\node_modules\tedious\lib\connector.js:170:16)
at Socket.emit (events.js:182:13)
at emitErrorNT (internal/streams/destroy.js:92:8)
at emitErrorAndCloseNT (internal/streams/destroy.js:59:3)
at process._tickCallback (internal/process/next_tick.js:174:19)
message: 'Failed to connect to localhost:1433 - Could not connect (sequence)',
code: 'ESOCKET' },
name: 'ConnectionError' }
{ ConnectionError: Connection is closed.
at Request._query (C:\Users\smr09\Desktop\Code\ou\db_test\node_modules\mssql\lib\base.js:1299:37)
at Request._query (C:\Users\smr09\Desktop\Code\ou\db_test\node_modules\mssql\lib\tedious.js:497:11)
at Request.query (C:\Users\smr09\Desktop\Code\ou\db_test\node_modules\mssql\lib\base.js:1242:12)
at C:\Users\smr09\Desktop\Code\ou\db_test\test.js:24:17
at _poolCreate.then.catch.err (C:\Users\smr09\Desktop\Code\ou\db_test\node_modules\mssql\lib\base.js:269:7)
at process._tickCallback (internal/process/next_tick.js:178:7) code: 'ECONNCLOSED', name: 'ConnectionError' }
I am rather new at this particularly with dealing with databases. Can someone explain what the error means?

Add this line to the config:
options: {
encrypt: false
}
It will finally look like:
var config = {
user: 'superadmin',
password: '***',
server: 'localhost',
database: 'XXX' ,
options: {
encrypt: false
}
};

try to put encrypt: false in your config{}, it will work.

your error:
ConnectionError: Failed to connect to localhost:1433 - Could not
connect (sequence)
My problem was resolved by adding port
var config = {
user: 'superadmin',
password: '***',
server: 'localhost',
database: 'XXX',
port: '',
};

Cannot send email in nodejs using nodemailer

I used nodemailer and my code as follows:
const nodemailer = require('nodemailer');
module.exports = function(obj) {
return new Promise((resolve, reject) => {
console.log('In root to mail send file...');
let transporter = nodemailer.createTransport({
service: 'gmail',
auth: {
user: 'myemail#gmail.com',
pass: 'my password'
}
});
let mailOptions = {
from: '<myemail#gmail.com>', // sender address
to: obj.email, // list of receivers
subject: obj.subject, // Subject line
text: obj.msg, // plain text body
html: obj.html_msg // html body
};
console.log('sending function');
transporter.sendMail(mailOptions, (error, info) => {
if (error) {
console.log('Error due to send mail' + error);
reject(error);
} else {
console.log('Message %s sent: %s', info.messageId, info.response);
resolve(info);
}
});
});
}
When I run the code, I got this error
{
Error: connect ETIMEDOUT 74.125.200.109:465 at
Object.exports._errnoException (util.js:1022:11) at
exports._exceptionWithHostPort (util.js:1045:20 at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1090:14)
code: 'ECONNECTION',
errno: 'ETIMEDOUT',
syscall: 'connect',
address: '74.125.200.109',
port: 465,
command: 'CONN'
}
I don't know why, please help me if anybody know why this error occurred.
I have already set Access for less secure apps: turn on in my gmail account.

You could be behind a network proxy which could be causing a timeout error.