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This is the session feed that will return information under the object "person". This gives you things like the username, displayName, sessionKey, and version.
[GET] /uPortal/layout.json (also at uPortal/api/v1/dlm/layout.json)
This provides your whole layout with folder (aka tab) structures and everything. Does not include regions, favorites, or favorite collections.
For new development consider using /uPortal/api/v4.3/dlm/layout.json instead.
[GET] /uPortal/api/v4.3/dlm/layout.json)
This provides your whole layout with folder (aka tab) structures and everything including regions, favorites, favorite collections, portlet publishing parameters, and certain UI information (are impersonating, can add tab, etc.).
[GET] /uPortal/api/layoutDoc
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