diff --git a/root.props b/root.props
index a424f271..4696cb93 100644
--- a/root.props
+++ b/root.props
@@ -8,7 +8,7 @@
 		<GenerateDocumentationFile>True</GenerateDocumentationFile>
 		<LangVersion>latest</LangVersion>
 		<NeutralLanguage>en-US</NeutralLanguage>
-		<NoWarn></NoWarn>
+		<NoWarn>CS1591</NoWarn>
 		<PackageIconUrl>https://raw.githubusercontent.com/graphql-dotnet/graphql-client/master/assets/logo.64x64.png</PackageIconUrl>
 		<PackageLicenseUrl>https://raw.githubusercontent.com/graphql-dotnet/graphql-client/master/LICENSE.txt</PackageLicenseUrl>
 		<PackageProjectUrl>https://github.com/graphql-dotnet/graphql-client</PackageProjectUrl>
diff --git a/src/GraphQL.Client/GraphQL.Client.csproj b/src/GraphQL.Client/GraphQL.Client.csproj
index 5a48d488..bf5e45e0 100644
--- a/src/GraphQL.Client/GraphQL.Client.csproj
+++ b/src/GraphQL.Client/GraphQL.Client.csproj
@@ -1,22 +1,22 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project Sdk="Microsoft.NET.Sdk">
 
-  <Import Project="../src.props" />
+	<Import Project="../src.props" />
 
-  <PropertyGroup>
-    <Description>A GraphQL Client</Description>
-    <TargetFrameworks>netstandard1.1;netstandard1.3;netstandard2.0</TargetFrameworks>
-  </PropertyGroup>
+	<PropertyGroup>
+		<Description>A GraphQL Client</Description>
+		<TargetFrameworks>netstandard1.3;netstandard2.0</TargetFrameworks>
+	</PropertyGroup>
 
-  <ItemGroup>
-    <ProjectReference Include="..\GraphQL.Common\GraphQL.Common.csproj" />
-  </ItemGroup>
+	<ItemGroup>
+		<ProjectReference Include="..\GraphQL.Common\GraphQL.Common.csproj" />
+	</ItemGroup>
 
-  <ItemGroup Condition="'$(TargetFramework)' == 'netstandard1.1'">
-    <PackageReference Include="System.Net.Http" Version="4.3.3" />
-  </ItemGroup>
+	<ItemGroup>
+		<PackageReference Include="System.Net.WebSockets.Client" Version="4.3.2" />
+	</ItemGroup>
 
-  <!-- Allow method ReadAsAsync<T>
+	<!-- Allow method ReadAsAsync<T>
   <ItemGroup>
     <PackageReference Include="Microsoft.AspNet.WebApi.Client" Version="5.2.4" />
   </ItemGroup>
diff --git a/src/GraphQL.Client/GraphQLClient.cs b/src/GraphQL.Client/GraphQLClient.cs
index 82b62f3c..1cb81c14 100644
--- a/src/GraphQL.Client/GraphQLClient.cs
+++ b/src/GraphQL.Client/GraphQLClient.cs
@@ -157,6 +157,19 @@ public async Task<GraphQLResponse> PostAsync(GraphQLRequest request, Cancellatio
 			}
 		}
 
+		[Obsolete("EXPERIMENTAL API")]
+		public async Task<GraphQLSubscriptionResult> SubscribeAsync(string query, CancellationToken cancellationToken = default) {
+			if (query == null) { throw new ArgumentNullException(nameof(query)); }
+
+			return await this.SubscribeAsync(new GraphQLRequest { Query=query},cancellationToken).ConfigureAwait(false);
+		}
+
+		[Obsolete("EXPERIMENTAL API")]
+		public async Task<GraphQLSubscriptionResult> SubscribeAsync(GraphQLRequest request,CancellationToken cancellationToken = default) {
+			var a= new GraphQLSubscriptionResult();
+			return await Task.FromResult(a);
+		}
+
 		/// <summary>
 		/// Releases unmanaged resources
 		/// </summary>
diff --git a/src/GraphQL.Client/GraphQLClientExtensions.cs b/src/GraphQL.Client/GraphQLClientExtensions.cs
index ba6aeb1e..9adc3d54 100644
--- a/src/GraphQL.Client/GraphQLClientExtensions.cs
+++ b/src/GraphQL.Client/GraphQLClientExtensions.cs
@@ -1,3 +1,4 @@
+using System.Threading;
 using System.Threading.Tasks;
 using GraphQL.Common.Request;
 using GraphQL.Common.Response;
@@ -9,8 +10,7 @@ namespace GraphQL.Client {
 	/// </summary>
 	public static class GraphQLClientExtensions {
 
-		private static readonly GraphQLRequest IntrospectionQuery = new GraphQLRequest {
-			Query = @"
+		private const string IntrospectionQuery = @"
 				query IntrospectionQuery {
 					__schema {
 						queryType {
@@ -95,7 +95,10 @@ fragment TypeRef on __Type {
 							}
 						}
 					}
-				}".Replace("\t", "").Replace("\n", "").Replace("\r", ""),
+				}";
+
+		private static readonly GraphQLRequest IntrospectionGraphQLRequest = new GraphQLRequest {
+			Query = IntrospectionQuery.Replace("\t", "").Replace("\n", "").Replace("\r", ""),
 			Variables = null
 		};
 
@@ -103,17 +106,19 @@ fragment TypeRef on __Type {
 		/// Send an IntrospectionQuery via GET
 		/// </summary>
 		/// <param name="graphQLClient">The GraphQLClient</param>
+		/// <param name="cancellationToken"></param>
 		/// <returns>The GraphQLResponse</returns>
-		public static async Task<GraphQLResponse> GetIntrospectionQueryAsync(this GraphQLClient graphQLClient) =>
-			await graphQLClient.GetAsync(IntrospectionQuery).ConfigureAwait(false);
+		public static async Task<GraphQLResponse> GetIntrospectionQueryAsync(this GraphQLClient graphQLClient, CancellationToken cancellationToken = default) =>
+			await graphQLClient.GetAsync(IntrospectionGraphQLRequest, cancellationToken).ConfigureAwait(false);
 
 		/// <summary>
 		/// Send an IntrospectionQuery via POST
 		/// </summary>
 		/// <param name="graphQLClient">The GraphQLClient</param>
+		/// <param name="cancellationToken"></param>
 		/// <returns>The GraphQLResponse</returns>
-		public static async Task<GraphQLResponse> PostIntrospectionQueryAsync(this GraphQLClient graphQLClient) =>
-			await graphQLClient.PostAsync(IntrospectionQuery).ConfigureAwait(false);
+		public static async Task<GraphQLResponse> PostIntrospectionQueryAsync(this GraphQLClient graphQLClient, CancellationToken cancellationToken = default) =>
+			await graphQLClient.PostAsync(IntrospectionGraphQLRequest, cancellationToken).ConfigureAwait(false);
 
 	}
 
diff --git a/src/GraphQL.Client/GraphQLSubscriptionResult.cs b/src/GraphQL.Client/GraphQLSubscriptionResult.cs
new file mode 100644
index 00000000..b764993a
--- /dev/null
+++ b/src/GraphQL.Client/GraphQLSubscriptionResult.cs
@@ -0,0 +1,24 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using GraphQL.Common.Response;
+
+namespace GraphQL.Client {
+
+	/// <summary>
+	/// Represents the result of a subscription query
+	/// </summary>
+	[Obsolete("EXPERIMENTAL API")]
+	public class GraphQLSubscriptionResult {
+
+		public event Action<GraphQLResponse> OnReceive;
+
+		public GraphQLResponse LastResponse { get; }
+
+		public GraphQLSubscriptionResult() {
+			this.OnReceive.Invoke(null);
+		}
+
+	}
+
+}