I've been using Claudia.js [1] with Node / Lambda, and it's a lot easier than going through the web ui. My colleague built an Alexa skill linking service using Claudia, Node & Lambda. You can check out the code as an example of building something that's got a few functions & endpoints https://github.com/XeroAPI/xdhax-alexa-sample/tree/master/al...

[1] https://claudiajs.com/