This story is on making CDS-Core-API more restful. We figured out some issues and improvement items, e.g.

• always return Content-Type: "application/json" after creation of specific element (dataspace, anchor) and not Content-Type: "text/plain" or empty content
• adding endpoint to list all available dataspaces / information for one specific dataspace
• adding endpoint to retrieve existing schema-sets for one dataspace missing
• creating two root-nodes in parallel (even when the schema-set defines multiple root nodes)
• Creating a node: If a node contains a leaflist, currently it must be put in [] in the JSON body even if it only contains a single element. It may be difficult to distinguish between a leaflist and a leaf without looking into the YANG model, so a single element should be allowed to be submitted without [] (for lists, this is already possible).