🦸 Query with facets

Now that your index is in place, you can query using it.

You will need to use the $searchMeta aggregation stage to query your data. You can find more about this stage and how to use it in the Atlas Search documentation.

Now that you have an index on the genres and year fields, try creating a query that returns the number of books in each genre, for books published in the 2000s.

Click to see the answer

{
  $searchMeta: {
    "index": "facetsIndexName",
    "facet": {
      "operator": {
        "range": {
          "path": "year",
          "gte": 2000,
          "lte": 2010
        }
      },
      "facets": {
        "genresFacet": {
          "type": "string",
          "path": "genres"
        }
      }
    }
  }
}