Add support for apollo federation v2.6 and v2.7 (#6864)

Author: dariuszkuc

src/HotChocolate/ApolloFederation/src/ApolloFederation/Extensions/ApolloFederationRequestExecutorBuilderExtensions.cs

@@ -27,7 +27,7 @@ public static class ApolloFederationRequestExecutorBuilderExtensions
     /// </exception>
     public static IRequestExecutorBuilder AddApolloFederation(
         this IRequestExecutorBuilder builder,
-        FederationVersion version = FederationVersion.Latest)
+        FederationVersion version = FederationVersion.Default)
     {
         ArgumentNullException.ThrowIfNull(builder);
         builder.SetContextData(FederationContextData.FederationVersion, version);

src/HotChocolate/ApolloFederation/src/ApolloFederation/Extensions/FederationVersionExtensions.cs

@@ -14,8 +14,10 @@ [new Uri(FederationVersionUrls.Federation22)] = FederationVersion.Federation22,
         [new Uri(FederationVersionUrls.Federation23)] = FederationVersion.Federation23,
         [new Uri(FederationVersionUrls.Federation24)] = FederationVersion.Federation24,
         [new Uri(FederationVersionUrls.Federation25)] = FederationVersion.Federation25,
+        [new Uri(FederationVersionUrls.Federation26)] = FederationVersion.Federation26,
+        [new Uri(FederationVersionUrls.Federation27)] = FederationVersion.Federation27,
     };
-    
+
     private static readonly Dictionary<FederationVersion, Uri> _versionToUri = new()
     {
         [FederationVersion.Federation20] = new(FederationVersionUrls.Federation20),
@@ -24,8 +26,10 @@ [new Uri(FederationVersionUrls.Federation25)] = FederationVersion.Federation25,
         [FederationVersion.Federation23] = new(FederationVersionUrls.Federation23),
         [FederationVersion.Federation24] = new(FederationVersionUrls.Federation24),
         [FederationVersion.Federation25] = new(FederationVersionUrls.Federation25),
+        [FederationVersion.Federation26] = new(FederationVersionUrls.Federation26),
+        [FederationVersion.Federation27] = new(FederationVersionUrls.Federation27),
     };
-    
+
     public static FederationVersion GetFederationVersion<T>(
         this IDescriptor<T> descriptor)
         where T : DefinitionBase
@@ -40,7 +44,7 @@ public static FederationVersion GetFederationVersion<T>(
         // TODO : resources
         throw new InvalidOperationException("The configuration state is invalid.");
     }
-    
+
     public static FederationVersion GetFederationVersion(
         this IDescriptorContext context)
     {
@@ -56,26 +60,26 @@ public static FederationVersion GetFederationVersion(
 
     public static Uri ToUrl(this FederationVersion version)
     {
-        if(_versionToUri.TryGetValue(version, out var url))
+        if (_versionToUri.TryGetValue(version, out var url))
         {
             return url;
         }
-        
+
         // TODO : resources
         throw new ArgumentException("The federation version is not supported.", nameof(version));
     }
-    
+
     public static FederationVersion ToVersion(this Uri url)
     {
-        if(_uriToVersion.TryGetValue(url, out var version))
+        if (_uriToVersion.TryGetValue(url, out var version))
         {
             return version;
         }
-        
+
         // TODO : resources
         throw new ArgumentException("The federation url is not supported.", nameof(url));
     }
-    
+
     public static bool TryToVersion(this Uri url, out FederationVersion version)
         => _uriToVersion.TryGetValue(url, out version);
-}
+}

src/HotChocolate/ApolloFederation/src/ApolloFederation/FederationTypeNames.cs

@@ -12,13 +12,15 @@ internal static class FederationTypeNames
     public const string KeyDirective_Name = "key";
     public const string LinkDirective_Name = "link";
     public const string OverrideDirective_Name = "override";
+    public const string PolicyDirective_Name = "policy";
     public const string ProvidesDirective_Name = "provides";
     public const string RequiresDirective_Name = "requires";
     public const string RequiresScopesDirective_Name = "requiresScopes";
     public const string ShareableDirective_Name = "shareable";
     public const string FieldSetType_Name = "FieldSet";
     public const string ScopeType_Name = "Scope";
+    public const string PolicyType_Name = "Policy";
     public const string AnyType_Name = "_Any";
     public const string EntityType_Name = "_Entity";
     public const string ServiceType_Name = "_Service";
-}
+}

src/HotChocolate/ApolloFederation/src/ApolloFederation/FederationVersion.cs

@@ -13,6 +13,9 @@ public enum FederationVersion
     Federation23 = 2_3,
     Federation24 = 2_4,
     Federation25 = 2_5,
-    // Federation26 = 2_6,
-    Latest = Federation25,
-}
+    Federation26 = 2_6,
+    Federation27 = 2_7,
+    // default to latest-1
+    Default = Federation26,
+    Latest = Federation27
+}

src/HotChocolate/ApolloFederation/src/ApolloFederation/FederationVersionUrls.cs

@@ -8,4 +8,6 @@ internal static class FederationVersionUrls
     public const string Federation23 = "https://specs.apollo.dev/federation/v2.3";
     public const string Federation24 = "https://specs.apollo.dev/federation/v2.4";
     public const string Federation25 = "https://specs.apollo.dev/federation/v2.5";
-}
+    public const string Federation26 = "https://specs.apollo.dev/federation/v2.6";
+    public const string Federation27 = "https://specs.apollo.dev/federation/v2.7";
+}