How to strip out certain fields from the Stack Exchange API, JSON response?

Question

I want to fetch all my favorite questions on Stackoverflow.com and dump them as JSON. I used this API path:

/2.1/users/1310070/favorites?fromdate=1382486400&site=stackoverflow

But it is returning some fields which are not required like upvote_count, downvote_count, and owner.
Can I use the API in such a way that it does not return these fields?

This is to make my API calls light -- decrease the response size -- to save bandwidth (and time, and quota).

Answer 1

This is what custom filters are for.
For example, if you append &filter=!BGRhem4Z)WIti9lP55R*tgr(Jq_fHC to your query, above, you will get results without upvote_count, downvote_count, or owner information. (The first two aren't included by default anyway.)

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An easy way to create a filter is to use the filter-edit tool, on the appropriate doc page for the path you are using. :

(Sample image of tool follows. It is not specific to this question)