How do I get attributes for an object via Connect Rest API?

Environment:

May 2015 and newer

Resolution:

Connect Rest API is implemented using JSON-hyper-schema standards. This means a schema exists for all input and output data/format.

To access the JSON schema for a particular object perform a GET request to the metadata-catalog for the object in question. For example, http://<host>/services/rest/connect/latest/metadata-catalog/<object>

In the header of the request, use "Accept: application/schema+json".