Fixed AddGraphQL overloads resolution

src/FSharp.Data.GraphQL.Server.AspNetCore/ServiceCollectionExtensions.fs

@@ -257,7 +257,7 @@ module ServiceCollectionExtensions =
         member services.AddGraphQL<'Root, 'Handler when 'Handler :> GraphQLRequestHandler<'Root> and 'Handler : not struct>
             (
                 rootFactory : HttpContext -> 'Root,
-                [<Optional; DefaultParameterValue (GraphQLOptionsDefaults.WebSocketEndpoint)>] webSocketEndpointPath : string,
+                webSocketEndpointPath : string,
                 [<Optional>] additionalConverters : JsonConverter seq
             ) =
             let getExecutorService (sp : IServiceProvider) = sp.GetRequiredService<Executor<'Root>>()
@@ -277,7 +277,7 @@ module ServiceCollectionExtensions =
         member services.AddGraphQL<'Root>
             (
                 rootFactory : HttpContext -> 'Root,
-                [<Optional; DefaultParameterValue (GraphQLOptionsDefaults.WebSocketEndpoint)>] webSocketEndpointPath : string,
+                webSocketEndpointPath : string,
                 [<Optional>] additionalConverters : JsonConverter seq
             ) =
             let getExecutorService (sp : IServiceProvider) = sp.GetRequiredService<Executor<'Root>>()
@@ -301,7 +301,7 @@ module ServiceCollectionExtensions =
                 [<Optional>] additionalConverters : JsonConverter seq
             ) =
             let getExecutorService (sp : IServiceProvider) = sp.GetRequiredService<Executor<'Root>>()
-            services.AddGraphQL<'Root, 'Handler> (getExecutorService, rootFactory, additionalConverters, configure = null)
+            services.AddGraphQL<'Root, 'Handler> (getExecutorService, rootFactory, additionalConverters, configure = configure)
 
         /// <summary>
         /// Adds GraphQL options and services to the service collection. It gets the executor from the service provider.

tests/FSharp.Data.GraphQL.IntegrationTests.Server/FSharp.Data.GraphQL.IntegrationTests.Server.fsproj

@@ -15,6 +15,7 @@
   <ItemGroup>
     <None Include="ApplicationInsights.config" />
     <Compile Include="Schema.fs" />
+    <Compile Include="ServiceCollectionExtensionsCompilationTests.fs" />
     <Compile Include="Startup.fs" />
     <Compile Include="Program.fs" />
   </ItemGroup>

tests/FSharp.Data.GraphQL.IntegrationTests.Server/ServiceCollectionExtensionsCompilationTests.fs

@@ -0,0 +1,64 @@
+/// Compilation-only tests that verify all public AddGraphQL overloads resolve correctly.
+/// These functions are never called at runtime.
+module FSharp.Data.GraphQL.IntegrationTests.Server.ServiceCollectionExtensionsCompilationTests
+
+open System
+open Microsoft.AspNetCore.Http
+open Microsoft.Extensions.DependencyInjection
+
+open FSharp.Data.GraphQL.Server.AspNetCore
+open FSharp.Data.GraphQL.Samples.StarWarsApi
+
+let private rootFactory (ctx : HttpContext) : Root = Root(ctx)
+
+let private probe_ExecutorInstance_Handler_NoOptionals () =
+    let services = ServiceCollection() :> IServiceCollection
+    services.AddGraphQL<Root, DefaultGraphQLRequestHandler<Root>>(Schema.executor, rootFactory) |> ignore
+
+let private probe_ExecutorInstance_Handler_WithWsPath () =
+    let services = ServiceCollection() :> IServiceCollection
+    services.AddGraphQL<Root, DefaultGraphQLRequestHandler<Root>>(Schema.executor, rootFactory, "/ws") |> ignore
+
+let private probe_ExecutorInstance_Handler_WithConfigure () =
+    let services = ServiceCollection() :> IServiceCollection
+    let configure = Func<GraphQLOptions<Root>, GraphQLOptions<Root>>(id)
+    services.AddGraphQL<Root, DefaultGraphQLRequestHandler<Root>>(Schema.executor, rootFactory, configure) |> ignore
+
+let private probe_ExecutorInstance_NoHandler_NoOptionals () =
+    let services = ServiceCollection() :> IServiceCollection
+    services.AddGraphQL<Root>(Schema.executor, rootFactory) |> ignore
+
+let private probe_ExecutorInstance_NoHandler_WithWsPath () =
+    let services = ServiceCollection() :> IServiceCollection
+    services.AddGraphQL<Root>(Schema.executor, rootFactory, "/ws") |> ignore
+
+let private probe_ExecutorInstance_NoHandler_WithConfigure () =
+    let services = ServiceCollection() :> IServiceCollection
+    let configure = Func<GraphQLOptions<Root>, GraphQLOptions<Root>>(id)
+    services.AddGraphQL<Root>(Schema.executor, rootFactory, configure) |> ignore
+
+let private probe_FromDI_Handler_WithWsPath () =
+    let services = ServiceCollection() :> IServiceCollection
+    services.AddGraphQL<Root, DefaultGraphQLRequestHandler<Root>>(rootFactory, "/ws") |> ignore
+
+let private probe_FromDI_Handler_NoOptionals () =
+    let services = ServiceCollection() :> IServiceCollection
+    services.AddGraphQL<Root, DefaultGraphQLRequestHandler<Root>>(rootFactory) |> ignore
+
+let private probe_FromDI_Handler_WithConfigure () =
+    let services = ServiceCollection() :> IServiceCollection
+    let configure = Func<GraphQLOptions<Root>, GraphQLOptions<Root>>(id)
+    services.AddGraphQL<Root, DefaultGraphQLRequestHandler<Root>>(rootFactory, configure) |> ignore
+
+let private probe_FromDI_NoHandler_WithWsPath () =
+    let services = ServiceCollection() :> IServiceCollection
+    services.AddGraphQL<Root>(rootFactory, "/ws") |> ignore
+
+let private probe_FromDI_NoHandler_NoOptionals () =
+    let services = ServiceCollection() :> IServiceCollection
+    services.AddGraphQL<Root>(rootFactory) |> ignore
+
+let private probe_FromDI_NoHandler_WithConfigure () =
+    let services = ServiceCollection() :> IServiceCollection
+    let configure = Func<GraphQLOptions<Root>, GraphQLOptions<Root>>(id)
+    services.AddGraphQL<Root>(rootFactory, configure) |> ignore