Elasticsearch - NEST - Upsert - elasticsearch

Question

I have the following two classes
Entry
public class Entry
{
public Guid Id { get; set; }
public IEnumerable<Data> Data { get; set; }
}
EntryData
public class EntryData
{
public string Type { get; set; }
public object Data { get; set; }
}
I have a bunch of different applications that produces messages to a queue that I then consume in a separate application to store that data in elasticsearch.
Im using a CorrelationId for all the messages and I want to use this ID as the ID in elasticsearch.
So given the following data:
var id = Guid.Parse("1befd5b62b944b4aa600c85632159e11");
var entries = new List<Entry>
{
new Entry
{
Id = id,
Data = new List<EntryData>
{
new EntryData
{
Data = DateTime.UtcNow,
Type = "APPLICATION1_Received"
},
new EntryData
{
Data = DateTime.UtcNow,
Type = "APPLICATION1_Validated"
},
new EntryData
{
Data = DateTime.UtcNow,
Type = "APPLICATION1_Published"
},
}
},
new Entry
{
Id = id,
Data = new List<EntryData>
{
new EntryData
{
Data = DateTime.UtcNow,
Type = "APPLICATION2_Received"
},
new EntryData
{
Data = DateTime.UtcNow,
Type = "APPLICATION2_Validated"
},
new EntryData
{
Data = DateTime.UtcNow,
Type = "APPLICATION2_Published"
},
}
},
new Entry
{
Id = id,
Data = new List<EntryData>
{
new EntryData
{
Data = DateTime.UtcNow,
Type = "APPLICATION3_Received"
},
new EntryData
{
Data = DateTime.UtcNow,
Type = "APPLICATION3_Validated"
},
new EntryData
{
Data = DateTime.UtcNow,
Type = "APPLICATION3_Published"
},
}
},
};
I want this to be saved as one entry in elasticsearch where ID == 1befd5b6-2b94-4b4a-a600-c85632159e11 and a data array that contains 9 elements.
Im struggling a bit with getting this to work, when trying the following:
var result = await _elasticClient.BulkAsync(x => x.Index("journal").UpdateMany(entries, (descriptor, entry) => {
descriptor.Doc(entry);
return descriptor.Upsert(entry);
}), cancellationToken);
But this is just overwriting whatever already exists in the data array and the count is 3 instead of 9 (only the Application3 entries are saved).
So, is it possible to do what I want to do? I never worked with elasticsearch before so it feels like maybe Im missing something simple here... :)

Answer 1

Managed to solve it like this:
var result = await _elasticClient.BulkAsync(x => x.Index("journal").UpdateMany(entries, (descriptor, entry) => {
var script = new InlineScript("ctx._source.data.addAll(params.data)")
{
Params = new Dictionary<string, object> {{"data", entry.Data}}
};
descriptor.Script(b => script);
return descriptor.Upsert(entry);
}), cancellationToken);