Lookback API: Is there a way to include more than one artifact type in a single query?

Question

In traditional Rally Webservices REST, if I wanted to get all Defects and Stories modified since a certain date, I would need to issue two separate REST GET requests against each of these endpoints:

https://rally1.rallydev.com/slm/webservice/1.33/hierarchicalrequirement

and

https://rally1.rallydev.com/slm/webservice/1.33/defect/

Is there a way to leverage the Lookback API to combine these into one REST request?

Answer 1

Sure, just add _Type:{$in:["Defect","HierarchicalRequirement"]} to the query. All of the work item types are stored in the same collection. You can also get back descendent Tasks and TestCases.