在构建我的 Autofac 容器时，如何将以前注册的类型作为参数包含在其他注册类型中？

Question

Consider the following:

        public static IContainer Configure()
        {
            var builder = new ContainerBuilder();

            // Register a named HttpClient instance as a singleton.
            builder.Register(_ =>
            {
                var client = new HttpClient
                {
                    MaxResponseContentBufferSize = int.MaxValue,
                    Timeout = TimeSpan.FromMinutes(50)
                };

                client.DefaultRequestHeaders.Add("Connection", "Keep-Alive");
                client.DefaultRequestHeaders.Add("Keep-Alive", "3600");
                return client;
            })
            .SingleInstance();

            builder.Register(l => new RandomObject(new HttpClient, "randomString")).As<IRandomObject>();


            return builder.Build();
        }

When registering my RandomObject , how do I replace that new HttpClient instance in my previously registered HttpClient ? Failing that, is there a way new-up the HttpClient parameter so that it has the same settings as the previously registered one?

Answer 1

I think you should use resolve method for that

builder.Register(l => new RandomObject(l.Resolve<HttpClient>(), "randomString").As<IRandomObject>();