A quick and dirty javascript implementation of the SOAP API to get you up and running.
Please see the documentation for the SOAP API.
Please note that this relies on moszeed/easysoap, so you need to run npm install before testing the index.js.
You will need NodeJS to run this locally, a version that is at least mostly ES6 compaitible (7.5+) To run this in the browser, you may need to transpile these scripts into an older version of javascript. See here for a minimal implemtation
For a RESTful API, with JS examples, please see our API V3 documentation