I am starting research on how to implement Node.js SOA (service oriented architecture) with JSON web-services.
As a small sub-question, I need an approach/framework/system to make universal configuration center for all companies web-services. So that we don't configure every application with exact address of other application, but just link to some central server to get that information. (This should be very well worked-out topic for XML-based services, so some terminology/approaches/etc could/should be borrowed.)
Related to
RESTful JSON based SOA Registry
Service Oriented Architecture suggestions
UPDATE: This questions is about web-services configuration & orchestration.
GO for an active(having activity happening off late) framework with lean architecture.There's one called Geddy and another called Restify. If in doubt, Express can also be used for building webservices with JSON.
You can work on reading the centrally stored config from different app codebse when you use any of these.