This document discusses hosting Node.js apps on Microsoft Azure App Services. It notes that App Services provides auto-scaling, networking, continuous integration/deployment, deployment slots, insights and alerts. Using App Services for Node.js apps allows leveraging all of Azure's services like DocumentDB, SQL, Storage, and connectors for machine learning and media services. Hosting Node.js APIs on App Services resulted in over 4 million queries, costs ranging from one to two VMs, and 100% uptime with only 1% maintenance needed.