elasticsearch - Generate QueryString with named fields using nest elastic search client -

elasticsearch - Generate QueryString with named fields using nest elastic search client -

im using nest elastic clien, run basic search terms this:

.query(q => q.querystring(qs=>qs.query("user search term")));

and i'm combining basic search terms facets filters this:

.query( q => q.querystring(qs => qs.query("user search term")) && q.terms(t => t.brand, new string[] {"brand1", "brand2"}) && q.terms(t => t.colour, new string[] {"blue", "black"}) && q.range(r => r.from(50).to(100).onfield(f => f.price)) );

however i'm struggling run custom query string searches apply specific fields. search querystring passed app , hence wont know specific fields im searching cannot utilize .onfield() method on client

for illustration want able pass in querystring searches brand, gender , colour @ same time. looking @ elastic search query dsl think should able pass in querystring names fields so:

.query(q => q.querystring(qs => qs.query("brand:brand1 , gender:male , colour(blue)")));

but doesnt work , returns no results. how can generate querystring search on specific fields nest client?

also there way of viewing generated query nest searchdescriptor?

elasticsearch nest