Need help with Azure node.js "webapp"

so I'm working on a mini project (hackathon sort of deal) kinda got dragged into it, so the plan was to have a R Pi with a web cam acting as a motion detector and then send a notice to a node.js webapp running on azure that motion has been detected and have the web app display that.

we have the motion detector working but I'm tasked with setting up the node.js part of it and I have no clue what I'm doing.

anyone give me pointers to resources that can help? Sample code I can work off of?