SQL using NodeJS

https://docs.microsoft.com/en-us/sql/connect/node-js/step-3-proof-of-concept-connecting-to-sql-using-node-js

https://www.npmjs.com/package/mssql#connect-callback

https://scotch.io/tutorials/creating-a-single-page-todo-app-with-node-and-angular

https://www.youtube.com/watch?v=MLcXfRH1YzE