What is the node.js equivalent of this T-SQL query - sql-server

Question

The legacy system used to store passwords in query's output format,
SELECT
HASHBYTES('SHA1', CONVERT(VARCHAR, HASHBYTES('SHA1', CONVERT(NVARCHAR(4000), ’test'))) + 'mysalt')
where the password is test and mysalt is the salt used.
The result is something like
0x169A0EF01AA369518D6810E14872A3A003A1F0AA
I have to take that encrypted password and create a node function to get the same result as the above query

Answer 1

Node.js is not going to replace a t-sql query. You would still use t-sql to query your database and something like the tedious module connection to the database. This is an example from https://msdn.microsoft.com/library/mt715784.aspx on how to connect from node.js to SQL Server and execute a query. Some modifications to the executeStatement function would get you going.
var Connection = require('tedious').Connection;
var config = {
userName: 'yourusername',
password: 'yourpassword',
server: 'yourserver.database.windows.net',
// When you connect to Azure SQL Database, you need these next options.
options: {encrypt: true, database: 'AdventureWorks'}
};
var connection = new Connection(config);
connection.on('connect', function(err) {
// If no error, then good to proceed.
console.log("Connected");
executeStatement();
});
var Request = require('tedious').Request;
var TYPES = require('tedious').TYPES;
function executeStatement() {
request = new Request("SELECT c.CustomerID, c.CompanyName,COUNT(soh.SalesOrderID) AS OrderCount FROM SalesLT.Customer AS c LEFT OUTER JOIN SalesLT.SalesOrderHeader AS soh ON c.CustomerID = soh.CustomerID GROUP BY c.CustomerID, c.CompanyName ORDER BY OrderCount DESC;", 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 ="";
});
request.on('done', function(rowCount, more) {
console.log(rowCount + ' rows returned');
});
connection.execSql(request);
}