
What Is Microsoft Rayfin? A Practitioner’s Guide to Fabric’s New App Backend
TL;DR Microsoft Rayfin is an open source tool that builds an app’s backend and deploys it straight onto Microsoft Fabric. One command sets up the database, login system, and API together. The app’s data lands in OneLake right away, with no separate step to move it into analytics. Rayfin is still in preview, so Microsoft has not set a launch




