using System;

using System.Net.Http;

using Microsoft.AspNetCore.Builder;

using Microsoft.Extensions.DependencyInjection;

​

public class Program

{

    public static void Main(string[] args)

    {

        var builder = WebApplication.CreateBuilder(args);

        // builder.Services.AddTransient<IFooService, FooService>();

        builder.Services.AddHttpClient<IFooService, FooService>(client =>

        {

            client.BaseAddress = new Uri("https://www.google.com");

        });

​

        var app = builder.Build();

​

        var fooService = app.Services.GetRequiredService<IFooService>();

​

        var path1 = fooService.GetPath1();

        var path2 = fooService.GetPath2();

​

        Console.WriteLine($"Path1: {path1}"); // Why doesn't this work?

        Console.WriteLine($"Path2: {path2}");

    }

}

​

public class FooService : IFooService

{

    private readonly HttpClient _client;

    private readonly IHttpClientFactory _factory;

​

    public FooService(HttpClient client, IHttpClientFactory factory)

    {

        _client = client;

        _factory = factory;

    }

​

    public string GetPath1() => _client.BaseAddress?.ToString();

​

    public string GetPath2() => _factory.CreateClient("IFooService").BaseAddress?.ToString();

}

​

public interface IFooService

{

    string GetPath1();

    string GetPath2();

}