Why can't my node js script connect to my mssql database running in docker, but Microsoft SQL Server Management can

Question

I'm trying to connect node js script to MsSQL database server, but fails.

My Microsoft SQL Server Management is however able to connect to the database.

node.js code

var Connection = require('tedious').Connection;  
var config = {  
    server: "172.168.200.35",
    dialect: "mssql",
    port:51433,
    authentication: {
        type: 'default',
        options: {
            userName: 'testuser',
            password: 'abc123'
        }
    },
    options: {
        database: 'IoTDb'
    }
};  
var connection = new Connection(config);  
// Attempt to connect and execute queries if connection goes through
connection.on("connect", err => {
if (err) {
    console.error(err.message);
} else {
    executeStatement();
}
});

When running the code, I get this error

Failed to connect to 172.168.200.35:51433:1433 - getaddrinfo ENOTFOUND 172.168.200.35:51433

I don't understand why its fails to connect port 1433, as the port is defined as 51433

However, when I try to connect to the database via this login info (same as node config variable)

It connects and I get this view over the database

For info about the database, it is running via docker on another pc, but is reachable

I moved the port to options and now the error is this

Failed to connect to 172.168.200.35:51433:51433 - getaddrinfo ENOTFOUND 172.168.200.35:51433

SSMS is nothing more than a client application, just like your application. If one succeeds and the other fails, the problem is in the code. — Panagiotis Kanavos
– Panagiotis Kanavos, Commented Dec 9, 2021 at 11:42
I may be wrong, but shouldn't nodejs connect to 51433 not 1433 — Ragib
– Ragib, Commented Dec 9, 2021 at 11:43
The error says Failed to connect to 172.168.200.35:1433. That's not the same port. Are you sure you set the correct parameter? — Panagiotis Kanavos
– Panagiotis Kanavos, Commented Dec 9, 2021 at 11:45
I see. I added the port to the server in node and the new error can be seen — jonas
– jonas, Commented Dec 9, 2021 at 11:46

Panagiotis Kanavos · Accepted Answer · 2021-12-09 11:48:42Z

1

As this issue shows the port should be specified in options:

var config = {  
    server: "172.168.200.35",
    dialect: "mssql",
...
    options: {
        database: 'IoTDb',
        port:51433,
    }
};

answered Dec 9, 2021 at 11:48

Panagiotis Kanavos

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