I am trying to connect to my local DB to use it with Langchain. This is how I am trying to create the connection but keep getting the below error when fromDataSourceParams runs;

const datasource = new DataSource({

    type: 'mssql',
    host: 'localhost',
    username: '',
    password: '',
    database: 'RM',
    logging: true,
    extra: { trustServerCertificate: true },
  });
  const db = await SqlDatabase.fromDataSourceParams({ appDataSource: datasource });

err = new ConnectionError(err) ConnectionError: Login failed for user ''.

What am I doing wrong when am I creating the connection?

Tried to use my Windows credentials for username and password and be able to connect to the DB.