Node.js MSSQL tedius ConnectionError: Failed to connect to localhost:1433 - connect ECONNREFUSED

Question

I am trying to connect to MSSQL 2012 using NodeJS with the mssql connection interface.

When attempting to connect I get the following error:

{ [Conn         


        

Answer 1

My issue was that I needed to start sqlserver using docker first on my mac using this command

sudo docker start sqlserver

Answer 2

I couldn't connect with 'localhost' although I use 'localhost' in SQL Management Studio and other applications. When I used Computer Name (network address), it worked!

Answer 3

**Please follow the connection configuration and little test:**

//Declare global variable
var http = require('http');
var events = require('events');
var nodemailer = require('nodemailer');
var sql = require('mssql');<br/>
var Request = require('tedious').Request;  
var TYPES = require('tedious').TYPES; 
//Create an http server
http.createServer(function(req,res)
{
res.writeHead(200, {'Content-Type': 'text/html'});
 var Connection = require('tedious').Connection; 
//Configure the connection 
    var config = {  
        userName: '<user id>',  
        password: '<password>',  
        server: '<system ip>',  
        options: {database: '<database name>'}  
    };  
    var connection = new Connection(config);  
    connection.on('connect', function(err) {  
        console.log("Connected"); 
        executeStatement();     
    }); 

function executeStatement() {  
        request = new Request("select getdate();", function(err) {  
        if (err) {  
            console.log(err);}  
        });
     var result = "";  
        request.on('row', function(columns) {  
            columns.forEach(function(column) {  
              if (column.value === null) {  
                console.log('NULL');  
              } else {  
                result+= column.value + " ";  
              }  
            });  
            console.log(result);  
            result ="";  
        });  

        connection.execSql(request);  
};
  return res.end();
}).listen(8080);

//Post configuration test on browser: http://localhost:8080/

Answer 4

If after enabling the TCP connection and still your configuration is not working. Here's my own-configuration.

var config = {
    "user": 'admin',
    "password": 'password',
    "server": 'ALBERT-PC',
    "database": 'database_name',
    "port": '61427',
    "dialect": "mssql",
    "dialectOptions": {
        "instanceName": "SQLEXPRESS"
    }
};