While trying to understand GraphQL, this kind of filtering was the first thing was what I was hoping would be easily possible. I don't agree that creating such a filter is complex for the client or that is is an unreasonable expectation that the client would want to.<p>As an example, the OData spec has query filters:
<a href="http://www.odata.org/getting-started/basic-tutorial/#queryData" rel="nofollow">http://www.odata.org/getting-started/basic-tutorial/#queryDa...</a>