Dispatching Index() from NEST into to Elasticsearch.NET failed

[rdehuyss]

It's just a bit too late (past midnight CET+1) and I'm probably getting confused but I can't get the simplest example working. Below my exception...

Exception

Elasticsearch.Net.ElasticsearchClientException was unhandled
  HResult=-2146233088
  Message=Dispatching Index() from NEST into to Elasticsearch.NET failed
Received a request marked as PUT
This endpoint accepts POST,PUT
The request might not have enough information provided to make any of these endpoints:
  - /{index}/{type}
  - /{index}/{type}/{id}

  Source=Nest
  StackTrace:
       at Nest.LowLevelDispatch.IndexDispatch[T](IRequest`1 p, PostData`1 body) in c:\code\elasticsearch-net\src\Nest\_Generated\_LowLevelDispatch.generated.cs:line 987
       at Nest.ElasticClient.Nest.IHighLevelToLowLevelDispatcher.Dispatch[TRequest,TQueryString,TResponse](TRequest request, Func`3 responseGenerator, Func`3 dispatch) in c:\code\elasticsearch-net\src\Nest\ElasticClient.cs:line 56
       at Nest.ElasticClient.Nest.IHighLevelToLowLevelDispatcher.Dispatch[TRequest,TQueryString,TResponse](TRequest request, Func`3 dispatch) in c:\code\elasticsearch-net\src\Nest\ElasticClient.cs:line 46
       at Nest.ElasticClient.Index(IIndexRequest request) in c:\code\elasticsearch-net\src\Nest\Document\Single\Index\ElasticClient-Index.cs:line 40
       at Nest.ElasticClient.Index[T](T object, Func`2 selector) in c:\code\elasticsearch-net\src\Nest\Document\Single\Index\ElasticClient-Index.cs:line 34
       at ConsoleApplication2.Program.Main(String[] args) in c:\users\ronaldde\documents\visual studio 2015\Projects\ConsoleApplication2\ConsoleApplication2\Program.cs:line 27
       at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
       at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
       at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
       at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
       at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       at System.Threading.ThreadHelper.ThreadStart()
  InnerException: 

As far as I understand from the docs, the client should be 'deriving' the {index} (from the api I read, it should be my-application) and {type} from the class. Below all the details...

Elastic Search version

{
  "name" : "Black Queen",
  "cluster_name" : "elasticsearch",
  "version" : {
    "number" : "2.2.0",
    "build_hash" : "8ff36d139e16f8720f2947ef62c8167a888992fe",
    "build_timestamp" : "2016-01-27T13:32:39Z",
    "build_snapshot" : false,
    "lucene_version" : "5.4.1"
  },
  "tagline" : "You Know, for Search"
}

Nest client version (Package Manager Console Output)

...
Added package 'NEST.2.0.2' to 'packages.config'

The offending code

using System;
using System.Diagnostics;
using Nest;

namespace ConsoleApplication2
{
    class Program
    {
        private static void Main(string[] args)
        {
            var node = new Uri("http://localhost:9200");
            var settings = new ConnectionSettings(node);
            var client = new ElasticClient(settings);

            var tweet = new Tweet
            {
                Id = 1,
                User = "kimchy",
                PostDate = new DateTime(2009, 11, 15),
                Message = "Trying out NEST, so far so good?"
            };

            var response = client.Index(tweet); // => error happens here

            Debug.Write(response.Created);
        }
    }

    public class Tweet
    {
        public int Id { get; set; }
        public string User { get; set; }
        public DateTime PostDate { get; set; }
        public string Message { get; set; }
    }
}

Is it the lack of coffee, the sleep deprivation or ... ?

Thanks again!

[KodrAus]

I think the key to this mystery is this part of the exception:

The request might not have enough information provided to make any of these endpoints:
  - /{index}/{type}
  - /{index}/{type}/{id}

Nest doesn't know which index you want to store your document in. You can supply the index name in your call to Index, or as a DefaultIndex in the ConnectionSettings:

In ConnectionSettings:

var node = new Uri("http://localhost:9200");
var settings = new ConnectionSettings(node);
settings.DefaultIndex("myindex");

var client = new ElasticClient(settings);

In your call to Index:

var response = client.Index(tweet, idx => idx.Index("myindex"));

Which way you decide to provide the index to use depends on your usecase. I personally usually set it in the call to Index. Hope that helps :)

[rdehuyss]

thanks for the input! I created PR #1835 to update the documentation which is already merged.