How to add a method for all controllers in Sails.js?

I am trying to add a method available for all controllers in sailsjs, much like the blueprint methods are. The method should also be exposed to a REST route (like /modelName/myBlueprintMethod).

How can I go about and do this?

I have seen lots of Qs for how to override the blueprint methods but what i need is extend the blueprint.

A little context.
What I want to achieve is to expose the schema of the model related to the controller to automate some front-end CMS.

Thanks

node.js
sails.js

I also wanted a similar solution, although it would be a subset of your question: Asked a question here.

One way to go about this (and there could be others) is:

Make a service, send it the parameters and use it in all controllers. Hope this helps.

I did mine as described here: OVERRIDE CRUD BLUEPRINTS.

I created the blueprint hooks in /api/blueprints/...