Fix issue JSON scalar crashes on JsonElement inputs #6023

src/HotChocolate/Core/src/Types/Types/Scalars/JsonType.cs

@@ -180,8 +180,9 @@ public static JsonElement Format(IValueNode node)
             using var bufferWriter = new ArrayWriter();
             using var jsonWriter = new Utf8JsonWriter(bufferWriter);
             _visitor.Visit(node, new JsonFormatterContext(jsonWriter));
+            jsonWriter.Flush();
 
-            var jsonReader = new Utf8JsonReader(bufferWriter.GetSpan());
+            var jsonReader = new Utf8JsonReader(bufferWriter.Body.Span);
             return JsonElement.ParseValue(ref jsonReader);
         }
 

src/HotChocolate/Core/test/Types.Mutations.Tests/AnnotationBasedMutations.cs

@@ -127,6 +127,27 @@ public async Task SimpleMutationExtension_Inferred_Execute()
         result.MatchSnapshot();
     }
 
+    [Fact]
+    public async Task SimpleJsonMutationExtension_Inferred_Execute()
+    {
+        var result =
+            await new ServiceCollection()
+                .AddGraphQL()
+                .AddMutationType()
+                .AddTypeExtension<SimpleJsonMutationExtension>()
+                .AddMutationConventions(
+                    new MutationConventionOptions { ApplyToAllMutations = true })
+                .ModifyOptions(o => o.StrictValidation = false)
+                .ExecuteRequestAsync(
+                    @"mutation {
+                        doSomething(input: { something: 10 }) {
+                            string
+                        }
+                    }");
+
+        result.MatchSnapshot();
+    }
+
     [Fact]
     public async Task Ensure_That_Directive_Middleware_Play_Nice()
     {
@@ -983,6 +1004,13 @@ public string DoSomething(string something)
             => something;
     }
 
+    [ExtendObjectType("Mutation")]
+    public class SimpleJsonMutationExtension
+    {
+        public string DoSomething(System.Text.Json.JsonElement something)
+            => "Done";
+    }
+
     public class SimpleMutationAttribute
     {
         [UseMutationConvention(

src/HotChocolate/Core/test/Types.Mutations.Tests/__snapshots__/AnnotationBasedMutations.SimpleJsonMutationExtension_Inferred_Execute.snap

@@ -0,0 +1,7 @@
+{
+  "data": {
+    "doSomething": {
+      "string": "Done"
+    }
+  }
+}

src/HotChocolate/Core/test/Types.Tests/Types/JsonTypeTests.cs

@@ -1,4 +1,5 @@
 using System.Collections.Generic;
+using System.Numerics;
 using System.Text.Json;
 using System.Threading.Tasks;
 using CookieCrumble;
@@ -124,6 +125,111 @@ public async Task Input_Json_Object_Literal()
             """);
     }
 
+    [Theory]
+    [InlineData(0)]
+    [InlineData(-15)]
+    [InlineData(-10.5)]
+    [InlineData(1.5)]
+    [InlineData(1e15)]
+    public async Task Input_Json_Number_Literal(decimal value)
+    {
+        var result =
+            await new ServiceCollection()
+                .AddGraphQLServer()
+                .AddQueryType<Query>()
+                .ExecuteRequestAsync(
+                    $$"""
+                    {
+                        inputJson(input: {{value}})
+                    }
+                    """);
+
+        result.MatchInlineSnapshot(
+            $$"""
+            {
+              "data": {
+                "inputJson": {{value}}
+              }
+            }
+            """);
+    }
+
+    [Fact]
+    public async Task Input_Json_BigInt_Literal()
+    {
+        var value = BigInteger.Parse("100000000000000000000000050");
+
+        var result =
+            await new ServiceCollection()
+                .AddGraphQLServer()
+                .AddQueryType<Query>()
+                .ExecuteRequestAsync(
+                    $$"""
+                    {
+                        inputJson(input: {{value}})
+                    }
+                    """);
+
+        result.MatchInlineSnapshot(
+            $$"""
+            {
+              "data": {
+                "inputJson": {{value}}
+              }
+            }
+            """);
+    }
+
+    [Fact]
+    public async Task Input_Json_Exponent_Literal()
+    {
+        var result =
+            await new ServiceCollection()
+                .AddGraphQLServer()
+                .AddQueryType<Query>()
+                .ExecuteRequestAsync(
+                    """
+                    {
+                        inputJson(input: 1e1345)
+                    }
+                    """);
+
+        result.MatchInlineSnapshot(
+            """
+            {
+              "data": {
+                "inputJson": 1e1345
+              }
+            }
+            """);
+    }
+
+    [Theory]
+    [InlineData("true")]
+    [InlineData("false")]
+    public async Task Input_Json_Bool_Literal(string value)
+    {
+        var result =
+            await new ServiceCollection()
+                .AddGraphQLServer()
+                .AddQueryType<Query>()
+                .ExecuteRequestAsync(
+                    $$"""
+                    {
+                        inputJson(input: {{value}})
+                    }
+                    """);
+
+        result.MatchInlineSnapshot(
+            $$"""
+            {
+              "data": {
+                "inputJson": {{value}}
+              }
+            }
+            """);
+    }
+
     [Fact]
     public async Task Input_Json_Object_List()
     {