Aspect filters refine (limit) the number of items returned by a find request. Obtain input values for aspectFilter fields from an aspectHistogramContainer returned in the response of a previous query.
By issuing a series of find queries, you can continually refine the items returned in your responses. Do this by repeating a query using the aspect values returned in one response as the input values to your next query.
For example, the aspectHistogramContainer in a response on Men's Shoes could contain an aspect of Size, along with "aspect values" for the different sizes currently available in Men's Shoes. By populating aspectFilter fields with the values returned in an aspectHistogramContainer, you can refine the item results returned by your new query.
Note: If a call that specifies an outputSelector value of AspectHistogram returns aspectHistogramContainer.domainName, this is a sign that aspect histogram data might not be returned if you also specify an aspectFilter in the next call. To ensure that aspect histogram data is returned for the next call, add a domainFilter to the call as well.
See the Field Index to learn which calls use aspectFilter.
Defines what data to return, in addition to the default set of data, in a response.
If you don't specify this field, eBay returns a default set of item fields. Use outputSelector to include more information in the response. The additional data is grouped into discrete nodes. You can specify multiple nodes by including this field multiple times, as needed, in the request.
If you specify this field, the additional fields returned can affect the call's response time (performance), including in the case with feedback data.
See the Field Index to learn which calls use outputSelector.