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.
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))
A better solution in Nest 7.x:
await _client.UpdateAsync<ElasticSearchDoc>(doc.Id, u => u.Index("movies").Doc(new ElasticSearchDoc { Title = "Updated title!" }));