I have defined several GraphQL ObjectGraphType and queries in several projects. All of these projects has dependency to asp.net boilerplate GraphQL project. It return error "Castle.MicroKernel.ComponentNotFoundException: "No component for supporting the service was found" when i tried to call any graphQL queries.
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 ---
It works when all those queries and ObjectGraphType are in 1 project which is asp.net boilerplate GraphQL project.
In order to allow GraphQL ObjectGraphType and queries in multiple projects instead of putting all in the asp.net boilerplate GraphQL project, I have made the following changes:
ServiceCollectionExtensions.cs (In asp.net boilerplate GraphQL project)
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>();
}
}
You need to call AddGraphTypes
for each assembly:
var productGraphAssembly = Assembly.GetAssembly(typeof(ProductPagedResultGraphType));
services
.AddGraphQL(x => { x.ExposeExceptions = DebugHelper.IsDebug; })
.AddGraphTypes(ServiceLifetime.Scoped) // Assembly.GetCallingAssembly() is implicit
.AddGraphTypes(productGraphAssembly, ServiceLifetime.Scoped) // Add this
.AddUserContextBuilder(httpContext => httpContext.User)
.AddDataLoader();
You may be able to register IGraphType
types separately:
var assembly = Assembly.GetAssembly(typeof(ProductPagedResultGraphType));
foreach (var type in assembly.GetTypes()
.Where(x => !x.IsAbstract && typeof(IGraphType).IsAssignableFrom(x)))
{
services.TryAdd(new ServiceDescriptor(type, type, ServiceLifetime.Scoped));
}
Reference: https://github.com/graphql-dotnet/server/blob/3.4/src/Core/GraphQLBuilderExtensions.cs