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Nested Aggregation Usageedit
Fluent DSL exampleedit
s => s
.Aggregations(a => a
.Nested("tags", n => n
.Path(p => p.Tags)
.Aggregations(aa => aa
.Terms("tag_names", t => t
.Field(p => p.Tags.Suffix("name"))
)
)
)
)
Object Initializer syntax exampleedit
new SearchRequest<Project>
{
Aggregations = new NestedAggregation("tags")
{
Path = "tags",
Aggregations = new TermsAggregation("tag_names")
{
Field = "tags.name"
}
}
}
Example json output.
{
"aggs": {
"tags": {
"nested": {
"path": "tags"
},
"aggs": {
"tag_names": {
"terms": {
"field": "tags.name"
}
}
}
}
}
}
Handling Responsesedit
response.ShouldBeValid();
var tags = response.Aggs.Nested("tags");
tags.Should().NotBeNull();
var tagNames = tags.Terms("tag_names");
tagNames.Should().NotBeNull();
foreach(var item in tagNames.Buckets)
{
item.Key.Should().NotBeNullOrEmpty();
item.DocCount.Should().BeGreaterThan(0);
}