How to retrieve the serialized field name of an Elasticsearch Nest.Field - elasticsearch

Question

I want to get the field name of a field which is created with Infer.Field<MyDocument>(doc => doc.StringField1).
Example code:
using System;
using Nest;
using Xunit;
namespace Elasticsearch.Tests
{
public class MyDocument
{
public string StringField1 { get; set; }
}
public class SerializeField
{
[Fact]
public void TestFieldName()
{
var connectionSettings = new ConnectionSettings(new Uri("http://myesdomain.com:9200"));
var client = new ElasticClient(connectionSettings);
var stringField = Infer.Field<MyDocument>(doc => doc.StringField1);
// TODO: Code to get then name of stringField when serialized
}
}
}
Can I leaverage the client in order to serialize the name of the stringField as it would do in any request?

Answer 1

Fortunately I found the answer myself:
Short:
client.SourceSerializer.Serialize(stringField, ms);
Complete:
using System;
using System.IO;
using System.Text;
using Nest;
using Xunit;
namespace Elasticsearch.Tests
{
public class MyDocument
{
public string StringField1 { get; set; }
}
public class SerializeField
{
[Fact]
public void TestFieldName()
{
var connectionSettings = new ConnectionSettings(new Uri("http://myesdomain.com:9200"));
var client = new ElasticClient(connectionSettings);
var stringField = Infer.Field<MyDocument>(doc => doc.StringField1);
string fieldName;
using (var ms = new MemoryStream())
{
client.SourceSerializer.Serialize(stringField, ms);
ms.Position = 0;
using (var reader = new StreamReader(ms, Encoding.UTF8))
{
fieldName = reader.ReadToEnd();
}
}
Assert.Equal("\"stringField1\"", fieldName);
}
}
}

Answer 2

There is a better solution that uses a Nest.FieldResolver.
using System;
using Nest;
using Xunit;
namespace Elasticsearch.Tests
{
public class MyDocument
{
public string StringField1 { get; set; }
}
public class TestClass
{
[Fact]
public void TestFieldName()
{
var connectionSettings = new ConnectionSettings(new Uri("http://myesdomain.com:9200"));
var fieldResolver = new FieldResolver(connectionSettings);
var stringField = Infer.Field<MyDocument>(doc => doc.StringField1);
var fieldName = fieldResolver.Resolve(stringField);
Assert.Equal("stringField1", fieldName);
}
}
}