(Mis)using the table insert script for custom authorization is now something of the past since you can also create Custom API’s in Azure Mobile Services from now on. Create API functions and code away in Node.js to realize that sort of stuff!
Scott Guthrie announced the custom API functionality back in June. Looking more in depth into the possibilities led me to this nice blog post about Creating Custom API’s in Azure Mobile Services by Carlos Figueira.
Gogogo Azure power!