c# - 如何让 Nswag 生成的 api 客户端停止产生对象引用错误？

Question

我有一个需要模拟的遗留服务，它使用 Soap 作为消息格式。不幸的是，由于各种情况，我坚持使用 asmx 和 .Net Framework（由于它的 Soap 处理能力）

我的问题是我现在需要从服务中调用某个 API，并且使用 NSWAG 自动生成客户端 api，我发现当我尝试调用它时，它给出了 500 错误。这不一定是一个问题，因为我现在有点期待。

问题是，当它作为 500 处理的一部分抛出自动生成的 ApiException 消息时，它会跳转到响应和客户端的“最终”部分，然后只是抛出一个对象引用异常......某处。

异常中几乎没有任何细节，唯一感兴趣的（我认为）是它说“这个异常最初是在这个调用堆栈中引发的：System.Web.ThreadContext.AssociateWithCurrentThread(bool)”

我有点不知道从哪里开始，但我希望这是一个足够普遍的问题，在某个地方有解决方案！

[编辑 - 更新以包含代码]

public System.Threading.Tasks.Task<SomeDto> RetrieveAsync(string someIdentifier, string includePermissibleActions)
        {
            return RetrieveAsync(someIdentifier, includePermissibleActions, System.Threading.CancellationToken.None);
        }

        
        public async System.Threading.Tasks.Task<SomeDto> RetrieveAsync(string someIdentifier, string includePermissibleActions, System.Threading.CancellationToken cancellationToken)
        {
            if (someIdentifier == null)
                throw new System.ArgumentNullException("someIdentifier");

            var urlBuilder_ = new System.Text.StringBuilder();
            urlBuilder_.Append(BaseUrl != null ? BaseUrl.TrimEnd('/') : "").Append("/api/v1/someName/{someIdentifier}?");
            urlBuilder_.Replace("{someIdentifier}", System.Uri.EscapeDataString(ConvertToString(someIdentifier, System.Globalization.CultureInfo.InvariantCulture)));
            if (includePermissibleActions != null)
            {
                urlBuilder_.Append(System.Uri.EscapeDataString("includePermissibleActions") + "=").Append(System.Uri.EscapeDataString(ConvertToString(includePermissibleActions, System.Globalization.CultureInfo.InvariantCulture))).Append("&");
            }
            urlBuilder_.Length--;

            var client_ = _httpClient;
            var disposeClient_ = false;
            try
            {
                using (var request_ = new System.Net.Http.HttpRequestMessage())
                {
                    request_.Method = new System.Net.Http.HttpMethod("GET");

                    PrepareRequest(client_, request_, urlBuilder_);

                    var url_ = urlBuilder_.ToString();
                    request_.RequestUri = new System.Uri(url_, System.UriKind.RelativeOrAbsolute);

                    PrepareRequest(client_, request_, url_);

                    var response_ = await client_.SendAsync(request_, System.Net.Http.HttpCompletionOption.ResponseHeadersRead, cancellationToken).ConfigureAwait(false);
                    var disposeResponse_ = true;
                    try
                    {
                        var headers_ = System.Linq.Enumerable.ToDictionary(response_.Headers, h_ => h_.Key, h_ => h_.Value);
                        if (response_.Content != null && response_.Content.Headers != null)
                        {
                            foreach (var item_ in response_.Content.Headers)
                                headers_[item_.Key] = item_.Value;
                        }

                        ProcessResponse(client_, response_);

                        var status_ = (int)response_.StatusCode;
                        if (status_ == 200)
                        {
                            var objectResponse_ = await ReadObjectResponseAsync<SomeDto>(response_, headers_).ConfigureAwait(false);
                            if (objectResponse_.Object == null)
                            {
                                throw new ApiException("Response was null which was not expected.", status_, objectResponse_.Text, headers_, null);
                            }
                            return objectResponse_.Object;
                        }
                        else
                        if (status_ == 401)
                        {
                            string responseText_ = (response_.Content == null) ? string.Empty : await response_.Content.ReadAsStringAsync().ConfigureAwait(false);
                            throw new ApiException("Unauthorized", status_, responseText_, headers_, null);
                        }
                        else
                        if (status_ == 403)
                        {
                            string responseText_ = (response_.Content == null) ? string.Empty : await response_.Content.ReadAsStringAsync().ConfigureAwait(false);
                            throw new ApiException("Forbidden", status_, responseText_, headers_, null);
                        }
                        else
                        if (status_ == 404)
                        {
                            string responseText_ = (response_.Content == null) ? string.Empty : await response_.Content.ReadAsStringAsync().ConfigureAwait(false);
                            throw new ApiException("NotFound", status_, responseText_, headers_, null);
                        }
                        else
                        if (status_ == 500)
                        {
                            string responseText_ = (response_.Content == null) ? string.Empty : await response_.Content.ReadAsStringAsync().ConfigureAwait(false);
                            throw new ApiException("InternalServerError", status_, responseText_, headers_, null);
                        }
                        else
                        {
                            var responseData_ = response_.Content == null ? null : await response_.Content.ReadAsStringAsync().ConfigureAwait(false);
                            throw new ApiException("The HTTP status code of the response was not expected (" + status_ + ").", status_, responseData_, headers_, null);
                        }
                    }
                    finally
                    {
                        if (disposeResponse_)
                            response_.Dispose();
                    }
                }
            }
            finally
            {
                if (disposeClient_)
                    client_.Dispose();
            }
        }

标签： c#.netapinswag