on farm level we have stored several values in propertybag.
As far as I've understood the REST Api there is no way to get that values because the AllProperties endpoint is on web level.
So what to do?
- transfer the properties to all webs?
- defining a managed metadata and use the search-endpoint?
It appears that those solutions will end up having the same data on multiple places. So where to store these atomic properties and being able to read it via REST?