Using the filter query to search through the 'Categories' element in DataEntries

Question

I have been trying to figure out if it is possible, and how it would work, to use the URL filter query to search through the 'Categories' element in DataEntries within a DataFeed. If this is not possible then is there another way to gather certain DataEntries based on the 'Categories' element? Also, What is the main purpose and function of the 'Categories' element?

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Aaron: "You know that story, about how NASA spent millions of dollars developing this pen that writes in Zero G? Did you ever read that?" Abe: "Yeah." Aaron: "You know how the Russians solved the problem?" Abe: "Yeah, they used a pencil." Aaron: "Right. A normal wooden pencil. It just seems like Philip takes the NASA route almost every time." --Primer (2004)

Answer 1

Unfortunately there's no way to filter by category. You'll have to query all data, and do the filtering on the client side. Category is used to give a MeshObject a type. For example, LiveMeshFolder, or a custom type. Type is important in delegated authentication consent.

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