How would I express XML tag attributes in JSON?

Question

I am designing an API for my webapp.

I was thinking to support only JSON responses (not XML) because more streamlined.

But I have just bumped to this XML:

Answer 1

JSON is more uniform than XML and doesn't distinguish between plain-text attributes and hierarchical contents. The natural representation for your example would be

[
  {"id": 123, "private": 0, "archived": 0, "order": 1, "name": "Shopping"}
]

This is still more compact than the respective XML.