使用NEST在Elasticsearch中进行简单的现有文档更新

Question

Hey I trying to update existing document of ElasticSearch , I found a cURL code from Elasticsearch site Note: Sam type with 2 document is already exists I just want to update a existing field

POST /EmployeeIndex/Sam/2/_update
{
   "doc" : {
      "Nested" : true,
      "views": 0
   }
}

Its working perfectly how I need but please help me to convert it to NEST , as i working on .NET , I managed to write a code

 var responseUpdate = client.Update<clsEmployeeElasticSearch, object>(u => u
               .Index("EmployeeIndex")
                .Type("Sam")
                    .Id(2)
                    .Doc(new { Nested= true })
                    .RetryOnConflict(3)
                    .Refresh());

But it always creating a new field in my document instead of updating existing one. Please see attached screenshot with a code Please help guys.

Answer 1

What you need is a PartialUpdate . Applied on your example, the following code should do what you expect.

    var responseUpdate = client.Update<clsEmployeeElasticSearch, object>(u => u
         .Index("EmployeeIndex")
         .Type("Sam")
         .Id(2)
         .Doc(new {IsActive ="true", Views="0"})
         .DocAsUpsert()
     );

Answer 2

Is it possible that you are already there but be just facing a casing missmatch issue? see from Nest reference :

Property Name Inference In many places NEST allows you to pass property names and JSON paths as C# expressions, ie:

.Query(q=>q .Term(p=>p.Followers.First().FirstName, "martijn")) NEST by default will camelCase properties. So the FirstName property above will be translated to "followers.firstName".

This can be configured by setting

settings.SetDefaultPropertyNameInferrer(p=>p); This will leave property names untouched.

Properties marked with [ElasticAttibute(Name="")] or [JsonProperty(Name="")] will pass the configured name verbatim.

... Note that you are creating a dynamic object for the update so, i belive attributes might not a be a solution if you keep it that way