Fix #2665 add support for scripted_upsert

Author: Mpdreamz

src/Elasticsearch.Net/Connection/HttpConnection.cs

@@ -63,7 +63,7 @@ protected virtual HttpWebRequest CreateWebRequest(RequestData requestData)
 			request.ReadWriteTimeout = timeout;
 
 			//WebRequest won't send Content-Length: 0 for empty bodies
-			//which goes against RFC's and might break i.e IIS when used as a proxy.
+			//which goes against RFC's and might break i.e IIS hen used as a proxy.
 			//see: https://github.com/elasticsearch/elasticsearch-net/issues/562
 			var m = requestData.Method.GetStringValue();
 			request.Method = m;

src/Nest/Document/Multiple/Bulk/BulkOperation/BulkUpdate.cs

@@ -31,6 +31,12 @@ public interface IBulkUpdateOperation<TDocument, TPartialDocument> : IBulkOperat
 		/// </summary>
 		bool? DocAsUpsert { get; set; }
 
+		/// <summary>
+		/// If you would like your script to run regardless of whether the document exists or not — i.e. the script handles
+		/// initializing the document instead of the upsert element — then set scripted_upsert to true
+		/// </summary>
+		bool? ScriptedUpsert { get; set; }
+
 		/// <summary>
 		/// A script to specify the update.
 		/// </summary>
@@ -109,6 +115,12 @@ protected override object GetBody() =>
 		/// </summary>
 		public bool? DocAsUpsert { get; set; }
 
+		/// <summary>
+		/// If you would like your script to run regardless of whether the document exists or not — i.e. the script handles
+		/// initializing the document instead of the upsert element — then set scripted_upsert to true
+		/// </summary>
+		public bool? ScriptedUpsert { get; set; }
+
 		/// <summary>
 		/// A script to specify the update.
 		/// </summary>
@@ -128,6 +140,7 @@ public class BulkUpdateDescriptor<TDocument, TPartialDocument>
 		TDocument IBulkUpdateOperation<TDocument, TPartialDocument>.Upsert { get; set; }
 		TPartialDocument IBulkUpdateOperation<TDocument, TPartialDocument>.Doc { get; set; }
 		bool? IBulkUpdateOperation<TDocument, TPartialDocument>.DocAsUpsert { get; set; }
+		bool? IBulkUpdateOperation<TDocument, TPartialDocument>.ScriptedUpsert { get; set; }
 		IScript IBulkUpdateOperation<TDocument, TPartialDocument>.Script { get; set; }
 
 		protected override object GetBulkOperationBody() =>
@@ -136,7 +149,8 @@ protected override object GetBulkOperationBody() =>
 				_PartialUpdate = Self.Doc,
 				_Script = Self.Script,
 				_Upsert = Self.Upsert,
-				_DocAsUpsert = Self.DocAsUpsert
+				_DocAsUpsert = Self.DocAsUpsert,
+				_ScriptedUpsert = Self.ScriptedUpsert
 			};
 
 		protected override Id GetIdForOperation(Inferrer inferrer) =>
@@ -171,6 +185,13 @@ public BulkUpdateDescriptor<TDocument, TPartialDocument> DocAsUpsert(bool partia
 			Assign(a => a.DocAsUpsert = partialDocumentAsUpsert);
 
 		/// <summary>
+		/// If you would like your script to run regardless of whether the document exists or not — i.e. the script handles
+		/// initializing the document instead of the upsert element — then set scripted_upsert to true
+		/// </summary>
+		/// <summary>
+		public BulkUpdateDescriptor<TDocument, TPartialDocument> ScriptedUpsert(bool scriptedUpsert = true) =>
+			Assign(a => a.ScriptedUpsert = scriptedUpsert);
+
 		/// A script to specify the update.
 		/// </summary>
 		public BulkUpdateDescriptor<TDocument, TPartialDocument> Script(Func<ScriptDescriptor, IScript> scriptSelector) =>

src/Nest/Document/Multiple/Bulk/BulkOperation/BulkUpdateBody.cs

@@ -18,5 +18,8 @@ internal class BulkUpdateBody<TDocument, TPartialUpdate>
 
 		[JsonProperty("script")]
 		internal IScript _Script { get; set; }
+
+		[JsonProperty("scripted_upsert")]
+		internal bool? _ScriptedUpsert { get; set; }
 	}
 }