taxman is a microservice described in a blog post I published on Stackabuse written in node that retrieves, scrapes, and parses local and state tax information from http://www.revenue.nebraska.gov/question/sales.html and calculates tax given an amount.
To run the service locally $ node server.js
This will start the server running on port 3500.
To test put http://localhost:3500/taxrate/Nebraska/Lincoln and / or http://localhost:3500/calculate/Nebraska/Lincoln/1000 into your browser.