How do I update an existing document inside ElasticSearch index using NEST?
I have successfully updated existing items in my Elasticsearch index with NEST using a method like the following. Note in this example, you only need to send a partial document with the fields that you wish to be updated.
// Create partial document with a dynamic
dynamic updateDoc = new System.Dynamic.ExpandoObject();
updateDoc.Title = "My new title";
var response = client.Update<ElasticsearchDocument, object>(u => u
.Index("movies")
.Id(doc.Id)
.Document(updateDoc)
);
You can find more examples of ways to send updates in the NEST Update Unit Tests from the GitHub Source.
A better solution in Nest 7.x:
await _client.UpdateAsync<ElasticSearchDoc>(doc.Id, u => u
.Index("movies")
.Doc(new ElasticSearchDoc { Title = "Updated title!" }));
Actually for Nest 2 it's:
dynamic updateFields = new ExpandoObject();
updateFields.IsActive = false;
updateFields.DateUpdated = DateTime.UtcNow;
await _client.UpdateAsync<ElasticSearchDoc, dynamic>(new DocumentPath<ElasticSearchDoc>(id), u => u.Index(indexName).Doc(updateFields))