elasticsearch aggregation formula

es-aggs.js

{
    query: {
        filter: {...}
    }
    aggs: {
        impressions: {...},
        gender: {
            filters: {
                filters: {
                    M: {...},
                    F: {...},
                    unknown: {...}
                }
            },
            aggs: {
                impressions: {...},
                age: {...}
            }
        }
    }
}

agg(name, bucketFilter, metrics, subAgg)


function agg (name, bucketFilter, metrics, subAgg) {
    return {
        [name]: {
            ...bucketFilter,

            aggs: {

                ...metrics,
                ...subAgg
            }
        }
    }
}