如何将服务架构服务上下文注入到asp.net核心中间件中？

// IMyService.cs
public interface IMyService
{
    Task<string> DoSomethingAsync();
}

// MyService.cs
public class MyService : IMyService
{
    public async Task<string> DoSomethingAsync()
    {
        return "Done";
    }
}

// MyMiddleware.cs
public class MyMiddleware
{
    private readonly RequestDelegate _next;
    private readonly IMyService _myService;

    public MyMiddleware(RequestDelegate next, IMyService myService)
    {
        _next = next;
        _myService = myService;
    }

    public async Task InvokeAsync(HttpContext context)
    {
        var result = await _myService.DoSomethingAsync();
        context.Response.ContentType = "text/plain";
        await context.Response.WriteAsync(result);

        await _next(context);
    }
}

// Startup.cs
public class Startup
{
    public void ConfigureServices(IServiceCollection services)
    {
        services.AddTransient<IMyService, MyService>();
        // 其他服务注册
    }

    public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
    {
        if (env.IsDevelopment())
        {
            app.UseDeveloperExceptionPage();
        }

        app.UseMiddleware<MyMiddleware>();

        // 其他中间件注册
    }
}