introduce query parser to handle watch in query

Author: tg123

src/KubernetesClient.csproj

@@ -8,6 +8,7 @@
   </ItemGroup>
   <ItemGroup>
     <PackageReference Include="BouncyCastle.NetCore" Version="1.8.1.3" />
+    <PackageReference Include="Microsoft.AspNetCore.WebUtilities" Version="1.1.2" />
     <PackageReference Include="Microsoft.Rest.ClientRuntime" Version="3.0.3" />
     <PackageReference Include="Newtonsoft.Json" Version="10.0.2" />
     <PackageReference Include="YamlDotNet.NetCore" Version="1.0.0" />

src/WatcherDelegatingHandler.cs

@@ -1,8 +1,10 @@
 using System.IO;
+using System.Linq;
 using System.Net;
 using System.Net.Http;
 using System.Threading;
 using System.Threading.Tasks;
+using Microsoft.AspNetCore.WebUtilities;
 
 namespace k8s
 {
@@ -15,7 +17,9 @@ protected override async Task<HttpResponseMessage> SendAsync(HttpRequestMessage
 
             if (originResponse.IsSuccessStatusCode)
             {
-                if ($"{request.RequestUri.Query}".Contains("watch=true"))
+                var query = QueryHelpers.ParseQuery(request.RequestUri.Query);
+
+                if (query.TryGetValue("watch", out var values) && values.Any(v => v == "true"))
                 {
                     originResponse.Content = new LineSeparatedHttpContent(originResponse.Content);
                 }