You can do this in 2 queries. First you need to complete the GET request at http://www.google.com/reader/stream/items/ids . It supports several options, such as
s (required parameter: thread identifier to retrieve, can be determined more than once),n (required, number of items to retrieve)r for ranking (optional)- and others (see
/ids below)
And then you have to execute the POST request (this is because there can be many identifiers, and therefore the request can be disconnected) before http://www.google.com/reader/api/0/stream/items/contents . The required parameter i , which contains the identifier of the feed item (can be defined more than once).
This should return data from multiple channels (as returned for me).
source share