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

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

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);
        }
    }
}