Renamed Introspection Operation Name

src/HotChocolate/Core/src/Execution/ErrorHelper.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Net;
 using HotChocolate.Execution.Processing;
 using HotChocolate.Language;
 using static HotChocolate.Execution.Properties.Resources;
@@ -126,7 +127,11 @@ public static IQueryResult RootTypeNotFound(OperationType operationType) =>
         QueryResultBuilder.CreateError(
             ErrorBuilder.New()
                 .SetMessage(ErrorHelper_RootTypeNotFound_Message, operationType)
-                .Build());
+                .Build(),
+            new Dictionary<string, object?>
+            {
+                { WellKnownContextData.HttpStatusCode, HttpStatusCode.BadRequest }
+            });
 
     public static IQueryResult StateInvalidForOperationResolver() =>
         QueryResultBuilder.CreateError(

src/HotChocolate/Core/src/Types/Configuration/TypeRegistrar.CreateInstance.cs

@@ -21,7 +21,7 @@ public TypeSystemObjectBase CreateInstance(Type namedSchemaType)
                 return (TypeSystemObjectBase)constructor.Invoke(Array.Empty<object>());
             }
 
-            var args = new object[parameters.Length];
+            var args = new object?[parameters.Length];
 
             for (var i = 0; i < parameters.Length; i++)
             {

src/HotChocolate/Core/src/Types/Types/Descriptors/Conventions/DefaultTypeInspector.cs

@@ -169,7 +169,7 @@ public TypeReference GetArgumentTypeRef(
     }
 
     /// <inheritdoc />
-    public IExtendedType GetArgumentType(
+    public virtual IExtendedType GetArgumentType(
         ParameterInfo parameter,
         bool ignoreAttributes = false)
     {

src/HotChocolate/Utilities/src/Utilities.Introspection/BuiltInTypes.cs

@@ -3,74 +3,73 @@
 using static HotChocolate.Utilities.Introspection.WellKnownTypes;
 using static HotChocolate.Utilities.Introspection.WellKnownDirectives;
 
-namespace HotChocolate.Utilities.Introspection
+namespace HotChocolate.Utilities.Introspection;
+
+public static class BuiltInTypes
 {
-    public static class BuiltInTypes
-    {
-        private static readonly HashSet<string> _typeNames =
-            new()
-            {
-                __Directive,
-                __DirectiveLocation,
-                __EnumValue,
-                __Field,
-                __InputValue,
-                __Schema,
-                __Type,
-                __TypeKind,
-                String,
-                Boolean,
-                Float,
-                ID,
-                Int,
-            };
+    private static readonly HashSet<string> _typeNames =
+        new()
+        {
+            __Directive,
+            __DirectiveLocation,
+            __EnumValue,
+            __Field,
+            __InputValue,
+            __Schema,
+            __Type,
+            __TypeKind,
+            String,
+            Boolean,
+            Float,
+            ID,
+            Int,
+        };
 
-        private static readonly HashSet<string> _directiveNames =
-            new()
-            {
-                Skip,
-                Include,
-                Deprecated,
-                Defer,
-                Stream,
-                SpecifiedBy
-            };
+    private static readonly HashSet<string> _directiveNames =
+        new()
+        {
+            Skip,
+            Include,
+            Deprecated,
+            Defer,
+            Stream,
+            SpecifiedBy
+        };
 
-        public static bool IsBuiltInType(string name)
-            => _typeNames.Contains(name) || _directiveNames.Contains(name);
+    public static bool IsBuiltInType(string name)
+        => _typeNames.Contains(name) || _directiveNames.Contains(name);
 
-        public static DocumentNode RemoveBuiltInTypes(this DocumentNode schema)
+    public static DocumentNode RemoveBuiltInTypes(this DocumentNode schema)
+    {
+        if (schema is null)
         {
-            if (schema is null)
-            {
-                throw new System.ArgumentNullException(nameof(schema));
-            }
+            throw new System.ArgumentNullException(nameof(schema));
+        }
 
-            var definitions = new List<IDefinitionNode>();
+        var definitions = new List<IDefinitionNode>();
 
-            foreach (var definition in schema.Definitions)
+        foreach (var definition in schema.Definitions)
+        {
+            if (definition is INamedSyntaxNode type)
             {
-                if (definition is INamedSyntaxNode type)
-                {
-                    if (!_typeNames.Contains(type.Name.Value))
-                    {
-                        definitions.Add(definition);
-                    }
-                }
-                else if (definition is DirectiveDefinitionNode directive)
+                if (!_typeNames.Contains(type.Name.Value))
                 {
-                    if (!_directiveNames.Contains(directive.Name.Value))
-                    {
-                        definitions.Add(definition);
-                    }
+                    definitions.Add(definition);
                 }
-                else
+            }
+            else if (definition is DirectiveDefinitionNode directive)
+            {
+                if (!_directiveNames.Contains(directive.Name.Value))
                 {
                     definitions.Add(definition);
                 }
             }
-
-            return new DocumentNode(definitions);
+            else
+            {
+                definitions.Add(definition);
+            }
         }
+
+        return new DocumentNode(definitions);
     }
 }

src/HotChocolate/Utilities/src/Utilities.Introspection/IIntrospectionClient.cs

@@ -4,55 +4,58 @@
 using System.Threading.Tasks;
 using HotChocolate.Language;
 
-namespace HotChocolate.Utilities.Introspection
+namespace HotChocolate.Utilities.Introspection;
+
+/// <summary>
+/// The <see cref="IIntrospectionClient"/> for introspecting a GraphQL server and
+/// downloading the introspection result as GraphQL SDL.
+/// </summary>
+public interface IIntrospectionClient
 {
-    public interface IIntrospectionClient
-    {
-        /// <summary>
-        /// Downloads the schema information from a GraphQL server
-        /// and writes it as GraphQL SDL to the given stream.
-        /// </summary>
-        /// <param name="client">
-        /// The HttpClient that shall be used to execute the introspection query.
-        /// </param>
-        /// <param name="stream">
-        /// The stream to which the schema shall be written to.
-        /// </param>
-        /// <param name="cancellationToken">
-        /// The cancellation token.
-        /// </param>
-        Task DownloadSchemaAsync(
-            HttpClient client,
-            Stream stream,
-            CancellationToken cancellationToken = default);
+    /// <summary>
+    /// Downloads the schema information from a GraphQL server
+    /// and writes it as GraphQL SDL to the given stream.
+    /// </summary>
+    /// <param name="client">
+    /// The HttpClient that shall be used to execute the introspection query.
+    /// </param>
+    /// <param name="stream">
+    /// The stream to which the schema shall be written to.
+    /// </param>
+    /// <param name="cancellationToken">
+    /// The cancellation token.
+    /// </param>
+    Task DownloadSchemaAsync(
+        HttpClient client,
+        Stream stream,
+        CancellationToken cancellationToken = default);
 
-        /// <summary>
-        /// Downloads the schema information from a GraphQL server
-        /// and returns the schema syntax tree.
-        /// </summary>
-        /// <param name="client">
-        /// The HttpClient that shall be used to execute the introspection query.
-        /// </param>
-        /// <param name="cancellationToken">
-        /// The cancellation token.
-        /// </param>
-        /// <returns>Returns a parsed GraphQL schema syntax tree.</returns>
-        Task<DocumentNode> DownloadSchemaAsync(
-            HttpClient client,
-            CancellationToken cancellationToken = default);
+    /// <summary>
+    /// Downloads the schema information from a GraphQL server
+    /// and returns the schema syntax tree.
+    /// </summary>
+    /// <param name="client">
+    /// The HttpClient that shall be used to execute the introspection query.
+    /// </param>
+    /// <param name="cancellationToken">
+    /// The cancellation token.
+    /// </param>
+    /// <returns>Returns a parsed GraphQL schema syntax tree.</returns>
+    Task<DocumentNode> DownloadSchemaAsync(
+        HttpClient client,
+        CancellationToken cancellationToken = default);
 
-        /// <summary>
-        /// Gets the supported GraphQL features from the server by doing an introspection query.
-        /// </summary>
-        /// <param name="client">
-        /// The HttpClient that shall be used to execute the introspection query.
-        /// </param>
-        /// <param name="cancellationToken">
-        /// The cancellation token.
-        /// </param>
-        /// <returns>Returns an object that indicates what features are supported.</returns>
-        Task<ISchemaFeatures> GetSchemaFeaturesAsync(
-            HttpClient client,
-            CancellationToken cancellationToken = default);
-    }
+    /// <summary>
+    /// Gets the supported GraphQL features from the server by doing an introspection query.
+    /// </summary>
+    /// <param name="client">
+    /// The HttpClient that shall be used to execute the introspection query.
+    /// </param>
+    /// <param name="cancellationToken">
+    /// The cancellation token.
+    /// </param>
+    /// <returns>Returns an object that indicates what features are supported.</returns>
+    Task<ISchemaFeatures> GetSchemaFeaturesAsync(
+        HttpClient client,
+        CancellationToken cancellationToken = default);
 }

src/HotChocolate/Utilities/src/Utilities.Introspection/ISchemaFeatures.cs

@@ -1,9 +1,23 @@
-namespace HotChocolate.Utilities.Introspection
+namespace HotChocolate.Utilities.Introspection;
+
+/// <summary>
+/// Represents the features that are supported by a GraphQL server.
+/// </summary>
+public interface ISchemaFeatures
 {
-    public interface ISchemaFeatures
-    {
-        bool HasDirectiveLocations { get; }
-        bool HasRepeatableDirectives { get; }
-        bool HasSubscriptionSupport { get; }
-    }
+    /// <summary>
+    /// Gets a value that indicates whether the server supports the
+    /// newer directive locations on when introspecting.
+    /// </summary>
+    bool HasDirectiveLocations { get; }
+
+    /// <summary>
+    /// Gets a value that indicates whether the server supports the repeatable directives.
+    /// </summary>
+    bool HasRepeatableDirectives { get; }
+
+    /// <summary>
+    /// Gets a value that indicates whether the server supports subscriptions.
+    /// </summary>
+    bool HasSubscriptionSupport { get; }
 }