Which snap to use to determine "match" or 'no match'

I have a task to design a pipeline to category response back from a API call. If the API tells me the result of “match” = , then I need to direct the data into a mongoDB collection; if the response tells me ‘match’ != empty, then I will mark it as “duplicate” and store it in another mongoDB collection. Which Snap I am supposed to use for the match situation? I am thinking to use Conditional Snap but not sure how to put the target path. Please help, thanks a billion!