wrote a really quick test for the newly generated raw client, many more to follow

Author: Mpdreamz

src/Nest.Tests.Integration/ConnectionTests.cs

@@ -100,5 +100,19 @@ public void construct_client_with_null_uri()
 				var settings = new ConnectionSettings(uri);
 			});
 		}
+
+		[Test]
+		public void ConnectUsingRawClient()
+		{
+			var result = this._client.Raw.InfoHead();
+			Assert.IsTrue(result.Success);
+			StringAssert.EndsWith(":9200/?pretty=true", result.RequestUrl);
+
+
+			var resultWithQueryString = this._client.Raw.InfoHead(qs => qs.Add("hello", "world"));
+			Assert.IsTrue(resultWithQueryString.Success);
+
+			StringAssert.EndsWith(":9200/?hello=world&pretty=true", resultWithQueryString.RequestUrl);
+		}
 	}
 }

src/Nest/IRawElasticClient.Generated.cs

@@ -11,11 +11,13 @@ namespace Nest
 	/// You can always pass a simple NameValueCollection if you want.
 	/// </summary>
 	/// <typeparam name="T"></typeparam>
-	public abstract class FluentQueryString<T> : NameValueCollection where T : FluentQueryString<T>
+	public abstract class FluentQueryString<T> where T : FluentQueryString<T>
 	{
-		public new T Add(string name, string value)
+		internal readonly NameValueCollection NameValueCollection = new NameValueCollection();
+
+		public T Add(string name, string value)
 		{
-			base.Add(name, value);
+			NameValueCollection.Add(name, value);
 			return (T)this;
 		}
 

src/Nest/QueryStringParameters/FluentQueryString.cs

@@ -40,6 +40,9 @@ public string Serialize(object @object)
 
 		protected ConnectionStatus DoRequest(string method, string path, object data = null,  NameValueCollection queryString = null)
 		{
+			if (queryString != null)
+				path += queryString.ToQueryString();
+
 			var postData = string.Empty;
 			var s = data as string;
 			if (s != null)
@@ -58,11 +61,17 @@ protected ConnectionStatus DoRequest(string method, string path, object data = n
 				case "head": return this.Connection.HeadSync(path);
 				case "get": return this.Connection.GetSync(path);
 			}
+
+			
+
 			throw new DslException("Unknown HTTP method " + method);
 		}
 
 		protected Task<ConnectionStatus> DoRequestAsync(string method, string path, object data = null, NameValueCollection queryString = null)
 		{
+			if (queryString != null)
+				path += queryString.ToQueryString(); 
+
 			var postData = string.Empty;
 			var s = data as string;
 			if (s != null)

src/Nest/RawElasticClient.Generated.cs

@@ -77,7 +77,7 @@ public IEnumerable<CsharpMethod> CsharpMethods
 
 						args = args.Concat(new[] 
 						{ 
-							"Func<"+queryStringParamName+", NameValueCollection> queryString = null" 
+							"Func<"+queryStringParamName+", FluentQueryString> queryString = null" 
 						});
 
 						var apiMethod = new CsharpMethod

src/Nest/RawElasticClient.cs

@@ -49,11 +49,14 @@ namespace Nest
 		}
 			NameValueCollection nv = null;
 			if (queryString != null)
-				nv = queryString(new @(method.QueryStringParamName)());
+			{
+				var qs = queryString(new @(method.QueryStringParamName)());
+				if (qs != null) nv = qs.NameValueCollection;
+			}
 		@{
 			string requestMethod = method.ReturnType.StartsWith("Task<") ? "DoRequestAsync" : "DoRequest";
 		}
-			return this.@(requestMethod)("@method.HttpMethod", url@(method.Parts.Any(pp=>pp.Name == "body") ? ", body" : string.Empty), nv);
+			return this.@(requestMethod)("@method.HttpMethod", url@(method.Parts.Any(pp=>pp.Name == "body") ? ", body" : ", data: null"), queryString: nv);
 		}</text>
 
 		}