c# - 如何使用 C# 将遗留程序的 POST 方法的 HttpWebRequest 转换为 HttpClient？

Question

我有使用 HttpWebRequest 的旧代码，它工作正常。微软建议我们使用HttpClient。在 C# 中如何修改它以使用 HttpClient？

string authText = "{   "AuthParams":{      "AuthToken":"TokenID",      "FirmID":"MSFT",      "SystemID":"Systems-Internal",      "Version":"1.0",      "UUID":"SystemsInternalAPIUser"   }}";
var httpWebRequest = (HttpWebRequest)WebRequest.Create("http://msft.com/api/busnWebService/xbox-games");
JObject data = JObject.Parse(authText);
httpWebRequest.ContentType = "application/json";
httpWebRequest.Method = "POST";

using (var streamWriter = new StreamWriter(httpWebRequest.GetRequestStream()))
{
    streamWriter.Write(data);
}

var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse();

var streamReader = new StreamReader(httpResponse.GetResponseStream());
string responseText = streamReader?.ReadToEnd();

(JsonConvert.DeserializeObject<CompRoot>(responseText).Data)
.Select(t => new CompanyClass
{       
    Ticker = t.Ticker,      
}).ToList()

Answer 1

由于我无法使用您的有效负载和端点尝试该解决方案，因此类似以下内容应该无需测试即可解决问题。

string authText = "{\"AuthParams\":{\"AuthToken\":\"TokenID\",\"FirmID\":\"MSFT\",\"SystemID\":\"Systems - Internal\",\"Version\":\"1.0\",\"UUID\":\"SystemsInternalAPIUser\"}}";
var content = new StringContent(authText, Encoding.UTF8, "application/json");
using HttpClient client = new HttpClient();
var httpResponse = await client.PostAsync("http://msft.com/api/busnWebService/xbox-games", content);

string responseText = await httpResponse.Content.ReadAsStringAsync();

使用HttpClinet，您需要将async Task与await结合使用。我认为您的响应映​​射应该是相同的。但您需要验证这一点。