Nest multisearch query writing as object initializer Syntax - elasticsearch

Question

I have a multiSearch query as below. Basically I query product and category types. I would like to make this query optional without writing same code again.
Basically in some cases I want to query only product type, that means that it will not multisearch but a search query. How can I split this query into 2 search queries. Something like below I think.
return Client.MultiSearch(ms => ms
.Search<Product>("products", s => s
.Index(IndexName)
.Explain(explain)
.Query(q => q
.Bool(b => b
.Should(
sh => sh.MultiMatch(qs => qs
.Fields(d => d
.Field(Name + ".raw", NameBoost + 0.5)
.Field(Name, NameBoost)
.Type(TextQueryType.BestFields)
.Query(key))
))).From(startfrom).Size(size))
.Search<Category>("categories", s => s
.Index(IndexName)
.Explain(explain)
.Query(q => q.
Bool(b => b.
Should(sh => sh.
MultiMatch(m => m
.Fields(d => d
.Field(f => f.Name, NameBoost)
.Field(p => p.Name.Suffix("raw"), NameBoost + 0.5)).Type(TextQueryType.BestFields)
.Query(key)
)
))).From(startfrom).Size(size))
);
something like this below. I guess that it is called object initializer Syntax according to this article
Client.MultiSearch (SearchProductQuery && SearchCategoryQuery)
is it possible?

Answer 1

This fluent API multi search
client.MultiSearch(ms => ms
.Search<Product>("products", s => s
.Index(IndexName)
.Explain(explain)
.Query(q => q
.Bool(b => b
.Should(sh => sh
.MultiMatch(qs => qs
.Fields(d => d
.Field(Name + ".raw", NameBoost + 0.5)
.Field(Name, NameBoost)
)
.Type(TextQueryType.BestFields)
.Query(key)
)
)
)
)
.From(startfrom)
.Size(size)
)
.Search<Category>("categories", s => s
.Index(IndexName)
.Explain(explain)
.Query(q => q
.Bool(b => b
.Should(sh => sh
.MultiMatch(m => m
.Fields(d => d
.Field(f => f.Name, NameBoost)
.Field(p => p.Name.Suffix("raw"), NameBoost + 0.5)
)
.Type(TextQueryType.BestFields)
.Query(key)
)
)
)
)
.From(startfrom)
.Size(size)
)
);
would be this OIS API multi search
var multiSearch = new MultiSearchRequest
{
Operations = new Dictionary<string, ISearchRequest>
{
{ "products", new SearchRequest<Product>(IndexName)
{
Explain = true,
Query = new BoolQuery
{
Should = new QueryContainer[] {
new MultiMatchQuery
{
Fields =
((Fields)Field.Create(Name + ".raw", NameBoost + 0.5))
.And(Name, NameBoost),
Type = TextQueryType.BestFields,
Query = key
}
}
},
From = startfrom,
Size = size
}
},
{ "categories", new SearchRequest<Category>(IndexName)
{
Explain = true,
Query = new BoolQuery
{
Should = new QueryContainer[] {
new MultiMatchQuery
{
Fields =
((Fields)Infer.Field<Category>(f => f.Name, NameBoost))
.And<Category>(f => f.Name.Suffix("raw"), NameBoost + 0.5),
Type = TextQueryType.BestFields,
Query = key
}
}
},
From = startfrom,
Size = size
}
},
}
};
client.MultiSearch(multiSearch);
Take a look at the multi search integration tests for another example. I'll look at getting this added to the documentation.