当多个程序集中的GraphQL OjectGraphTypes依赖注入将不起作用

Question

我在几个项目中定义了几个GraphQL ObjectGraphType和查询。所有这些项目都依赖于asp.net样板GraphQL项目。当我尝试调用任何graphQL查询时，它返回错误“ Castle.MicroKernel.ComponentNotFoundException：”未找到支持该服务的组件“。

Exception Stacktrace

Sample.Types.ProductPagedResultGraphType was found ---> Castle.MicroKernel.ComponentNotFoundException: No component for supporting the service Sample.Types.ProductPagedResultGraphType was found
   at Castle.MicroKernel.DefaultKernel.Castle.MicroKernel.IKernelInternal.Resolve(Type service, Arguments arguments, IReleasePolicy policy, Boolean ignoreParentContext)
   at Castle.Windsor.MsDependencyInjection.ScopedWindsorServiceProvider.GetServiceInternal(Type serviceType, Boolean isOptional) in D:\Github\castle-windsor-ms-adapter\src\Castle.Windsor.MsDependencyInjection\ScopedWindsorServiceProvider.cs:line 55
   at GraphQL.Types.Schema.<CreateTypesLookup>b__56_2(Type type)
   at GraphQL.Types.GraphTypesLookup.AddTypeIfNotRegistered(Type type, TypeCollectionContext context)
   at GraphQL.Types.GraphTypesLookup.HandleField(Type parentType, FieldType field, TypeCollectionContext context)
   at GraphQL.Types.GraphTypesLookup.AddType(IGraphType type, TypeCollectionContext context)
   at GraphQL.Types.GraphTypesLookup.Create(IEnumerable`1 types, IEnumerable`1 directives, Func`2 resolveType, IFieldNameConverter fieldNameConverter)
   at System.Lazy`1.ViaFactory(LazyThreadSafetyMode mode)
   at System.Lazy`1.ExecutionAndPublication(LazyHelper executionAndPublication, Boolean useDefaultConstructor)
   at System.Lazy`1.CreateValue()
   at GraphQL.Types.Schema.get_AllTypes()
   at GraphQL.Instrumentation.FieldMiddlewareBuilder.ApplyTo(ISchema schema)
   at GraphQL.DocumentExecuter.ExecuteAsync(ExecutionOptions options)
   --- End of inner exception stack trace ---
[当所有这些查询和ObjectGraphType都在1个项目中时有效，该项目是asp.net样板GraphQL项目。

为了允许在多个项目中使用GraphQL ObjectGraphType和查询，而不是将所有内容都放入asp.net样板GraphQL项目中，我进行了以下更改：

1. 我创建了一个新的QueryContainer（ExtQueryContainer.cs）以扩展原始的QueryContainer.cs
2. 我已经通过从类中删除sealed关键字来修改原始QueryContainer，以允许新创建的QueryContainer继承原始QueryContainer。
3. 我创建了一个新的GraphQL模式（GraphQLSchema.cs），它引用了新创建的ExtQueryContainer

ServiceCollectionExtensions.cs（在asp.net样板GraphQL项目中）

public static class ServiceCollectionExtensions
{
    public static void AddAndConfigureGraphQL(this IServiceCollection services)
    {
        services.AddScoped<IDependencyResolver>(
            x => new FuncDependencyResolver(x.GetRequiredService)
        );

        services
            .AddGraphQL(x => { x.ExposeExceptions = DebugHelper.IsDebug; })
            .AddGraphTypes(ServiceLifetime.Scoped)
            .AddUserContextBuilder(httpContext => httpContext.User)
            .AddDataLoader();
    }
}
ExtQueryContainer.cs

public sealed class ExtQueryContainer : QueryContainer
{
    public QueryContainer(RoleQuery roleQuery, UserQuery userQuery, OrganizationUnitQuery organizationUnitQuery, ProductQuery productQuery)
        : base(roleQuery, userQuery, organizationUnitQuery)
    {
        AddField(productQuery.GetFieldType());
    }
}
GraphQLSchema.cs

public class GraphQLSchema : Schema, ITransientDependency
{
    public GraphQLSchema(IDependencyResolver resolver) : base(resolver)
    {
        Query = resolver.Resolve<ExtQueryContainer>();
    }
}

我在几个项目中定义了几个GraphQL ObjectGraphType和查询。所有这些项目都依赖于asp.net样板GraphQL项目。它返回错误“ Castle.MicroKernel ....

Answer 1

您需要为每个程序集调用AddGraphTypes：