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[Route("api/graphql")]
public class GraphQLController : Controller
{
    private readonly GraphQLQuery _graphQLQuery;
    private readonly IDocumentExecuter _documentExecuter;
    private readonly ISchema _schema;

    public GraphQLController(GraphQLQuery graphQLQuery, IDocumentExecuter documentExecuter, ISchema schema)
    {
        _graphQLQuery = graphQLQuery;

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public class GraphQLSchema : Schema
{
    public GraphQLSchema(Func<Type, GraphType> resolveType)
        : base(resolveType)
    {
        Query = (GraphQLQuery)resolveType(typeof(GraphQLQuery));
    }
}

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builder.RegisterType<GraphQLSchema>().As<ISchema>();
builder.Register<Func<Type, GraphType>>(c => 
{
    var context = c.Resolve<IComponentContext>();
    return t => {
        var res = context.Resolve(t);
        return (GraphType)res;
    };
});

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builder.RegisterType<DocumentExecuter>().As<IDocumentExecuter>();

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public class GraphQLQuery : ObjectGraphType
{
    public GraphQLQuery(IServiceProvider serviceProvider)
    {
        var type = typeof(IResolver);
        var resolversTypes = AppDomain.CurrentDomain.GetAssemblies()
            .SelectMany(s => s.GetTypes())
            .Where(p => type.IsAssignableFrom(p));

        foreach(var resolverType in resolversTypes)

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public interface IResolver
{
    void Resolve(GraphQLQuery graphQLQuery);
}

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public class GroupsResolver : Resolver, IGroupsResolver
{
    private readonly IGroupsService _groupsService;

    public GroupsResolver(IGroupsService groupsService)
    {
        _groupsService = groupsService;
    }

    public void Resolve(GraphQLQuery graphQLQuery)

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var serviceAssembly = typeof(IResolver).GetTypeInfo().Assembly;

builder.RegisterAssemblyTypes(serviceAssembly)
    .Where(t => t.Name.EndsWith("Resolver"))
    .AsImplementedInterfaces()
    .InstancePerLifetimeScope();

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public class GroupType : ObjectGraphType<GroupDto>, IGraphQLType
{
    public GroupType()
    {
        Field(x => x.Name).Description("The group name.");
        Field(x => x.SvgIcon).Description("The icon of group.");
    }
}

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public class GroupDto
{
    public string Name { get; set; }
    public string SvgIcon { get; set; }
}