Use our own JSON Serializer in AppVeyor

Author: jetersen

src/GitVersionCore/BuildServers/AppVeyor.cs

@@ -3,6 +3,7 @@
 using GitVersion.OutputVariables;
 using GitVersion.Logging;
 using System.Text;
+using GitVersion.Helpers;
 
 namespace GitVersion.BuildServers
 {
@@ -22,9 +23,12 @@ public override string GenerateSetVersionMessage(VersionVariables variables)
 
             using var httpClient = GetHttpClient();
 
-            var body = $"{{\"version\":\"{variables.FullSemVer}.build.{buildNumber}\"}}";
+            var body = new
+            {
+                version = $"{variables.FullSemVer}.build.{buildNumber}",
+            };
 
-            var stringContent = new StringContent(body, Encoding.UTF8, "application/json");
+            var stringContent = new StringContent(JsonSerializer.Serialize(body), Encoding.UTF8, "application/json");
             var response = httpClient.PutAsync("api/build", stringContent).GetAwaiter().GetResult();
             response.EnsureSuccessStatusCode();
 
@@ -35,9 +39,13 @@ public override string[] GenerateSetParameterMessage(string name, string value)
         {
             var httpClient = GetHttpClient();
 
-            var body = $"{{\"name\": \"GitVersion_{name}\",\"value\": \"{value}\"}}";
+            var body = new
+            {
+                name = $"GitVersion_{name}",
+                value = $"{value}"
+            };
 
-            var stringContent = new StringContent(body, Encoding.UTF8, "application/json");
+            var stringContent = new StringContent(JsonSerializer.Serialize(body), Encoding.UTF8, "application/json");
             var response = httpClient.PostAsync("api/build/variables", stringContent).GetAwaiter().GetResult();
             response.EnsureSuccessStatusCode();