+1
I haven't found a way to do it, and I don't think it's possible. What we have done is leverage JSONP with JavaScript on the client side to integrate external site data. We have also used custom properties in Lithium to push data into Lithium from an external system. We can then access those properties using restadmin() in our custom endpoints.
+1 for being able to access external data sources server side!
@xorrkaz - when you say pushing data into custom properties are you talking doing this via SSO or is there another way to set custom properties?
