Nest multiple terms in DSL syntax - elasticsearch

Question

I'm trying to convert following query into NEST DSL syntax:
{
"aggs": {
"color": {
"terms": {
"field": "Color"
}
},
"weight": {
"terms": {
"field": "Weight"
}
}
}
}
Each of the terms is coming from the list which holds name and fieldId. So far I've managed to do this:
var request2 = _client.Search<T>(s => s
.Aggregations(aggs =>
aggs.Terms("Weight", x => x.Field("Weight")).Terms("Color", x => x.Field("Weight"))));
Which works as expected however I need to be able to supply parameters Weight and Color dynamically as the method can be called with different set of parameters. Is there a way how to use something like:
aggs.Terms(x => x.field( myList.foreach(y.value))));
I guess this would work better with the Object initializer syntax, however I would rather get this working inside dsl.

Answer 1

Something like the following would work
var client = new ElasticClient();
var fields = new List<string>
{
"color",
"weight",
"foo",
"bar"
};
var response = client.Search<object>(s => s
.Aggregations(aggs =>
{
foreach (var field in fields)
{
aggs.Terms(field, t => t.Field(field));
}
return aggs;
})
);
which generates the following request
{
"aggs": {
"color": {
"terms": {
"field": "color"
}
},
"weight": {
"terms": {
"field": "weight"
}
},
"foo": {
"terms": {
"field": "foo"
}
},
"bar": {
"terms": {
"field": "bar"
}
}
}
}