如何转发来自其他服务器（内部服务器）的响应

Question

我正在编写一个监控公司服务器的应用程序。该应用程序使用asp.net核心Web API。该应用程序维护已知服务器的列表。当get请求进入时，它将以其自己的状态或另一个服务器的状态进行响应。在来自其他服务器的响应的情况下，我想转发响应，https状态代码和所有。其他服务器是内部的，所以我不能只发出HTTP重定向。

这是我现在使用的方法。当我请求另一个服务器名称时，我当前获得了http状态代码500。另一台服务器当前没有运行，所以我期待404状态代码。

public async Task<IActionResult> Get(string name)
{
    if (Dns.GetHostName().Equals(name, StringComparison.InvariantCultureIgnoreCase))
    {
        return await GetThis();
    }

    var instanceUri = _context.InstanceUri(name);
    if (instanceUri == null)
    {
        return BadRequest(name);
    }
    var serverUrl = new Uri($"{instanceUri}{Url.Action(nameof(GetThis))}");
    var remoteRequest = new HttpClient()
    {
        BaseAddress = serverUrl
    }.GetAsync(serverUrl);
    await remoteRequest;
    //TODO: Handle errors and forward proper status codes
    return new ObjectResult(remoteRequest);
}

这是完整的控制器：

/// <summary>
/// Controller for getting server information.
/// </summary>
[Route("api/[controller]")]
public class ServerController : Controller
{
    private readonly ApplicationGlobalContext _context;

    public ServerController(ApplicationGlobalContext context)
    {
        _context = context;
    }

    /// <summary>
    /// Gets a list of server names
    /// </summary>
    /// <returns></returns>
    [HttpGet]
    public IEnumerable<string> Get()
    {
        return _context.InstanceNames;
    }

    /// <summary>
    /// Gets status of this server
    /// </summary>
    /// <returns></returns>
    [HttpGet]
    public async Task<IActionResult> GetThis()
    {
        var computerInfo = new ComputerInfo();
        var hostName = Dns.GetHostName();
        var hostAddresses = Dns.GetHostAddressesAsync(hostName);
        return new ObjectResult(new Server()
        {
            Name = hostName,
            IpAddresses = await hostAddresses,
            Memory = new Memory()
            {
                AvailablePhysicalMemory = computerInfo.AvailablePhysicalMemory,
                AvailableVirtualMemory = computerInfo.AvailableVirtualMemory,
                TotalPhysicalMemory = computerInfo.TotalPhysicalMemory,
                TotalVirtualMemory = computerInfo.AvailableVirtualMemory,
            },
        });
    }

    /// <summary>
    /// Gets a server by name
    /// </summary>
    /// <param name="name">The name of the server</param>
    /// <returns></returns>
    [HttpGet("{name}")]
    public async Task<IActionResult> Get(string name)
    {
        if (Dns.GetHostName().Equals(name, StringComparison.InvariantCultureIgnoreCase))
        {
            return await GetThis();
        }

        var instanceUri = _context.InstanceUri(name);
        if (instanceUri == null)
        {
            return BadRequest(name);
        }
        var relUri = Url.Action(nameof(GetThis));
        var serverUrl = new Uri($"{instanceUri}{Url.Action(nameof(GetThis))}");
        var remoteRequest = new HttpClient()
        {
            BaseAddress = serverUrl
        }.GetAsync(serverUrl);
        await remoteRequest;
        //TODO: Handle errors and forward proper status codes
        return new ObjectResult(remoteRequest);
    }
}