c# - 使用 Bearer Token 在 C# 中构建 post HttpClient 请求

Question

我并不是真正的 C# 专家，我在 C# 中有一个 httpRequest 帖子要开发，为此我创建了这个方法，它接受一个 Uri、一个对象和一个不记名 token 。

该方法旨在构建调用请求:

private HttpClient client = new HttpClient(); 
public async Task<UserResponse> CreateUser(Uri url, UserRequest userRequest, string token)
{
        
    client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
    client.DefaultRequestHeaders.TryAddWithoutValidation("Content-Type", "application/json; charset=utf-8");


    string requestObject = JsonConvert.SerializeObject(userRequest);
    Console.WriteLine("My Object: " + requestObject);
    var req = new HttpRequestMessage(HttpMethod.Post, url);
    req.Headers.Authorization = new AuthenticationHeaderValue("Bearer", token);
    req.Content = new StringContent(
        requestObject,
        Encoding.UTF8,
        "application/json"
    );

    Console.WriteLine(req.ToString());
    var response = await client.SendAsync(req); 
        
    string output = await response.Content.ReadAsStringAsync();
    Console.WriteLine(JsonConvert.DeserializeObject(output));

    UserResponse returnValue = JsonConvert.DeserializeObject<UserResponse>(output);
    return returnValue;
}

我的问题是我不确定我是否正确传递了我的 header 内容。返回响应是一条错误消息，告诉我未通过身份验证。

谢谢

Answer 1

你必须以这种方式添加 token :

var baseAddress = "http://....";
var api = ".....";
client.BaseAddress = new Uri(baseAddress);

var contentType = new MediaTypeWithQualityHeaderValue("application/json");

client.DefaultRequestHeaders.Accept.Add(contentType);
client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", token);

var postData = JsonConvert.SerializeObject(userRequest);
contentData = new StringContent(postData, Encoding.UTF8, "application/json");

var response = await client.PostAsync(baseUrl + api, contentData);

if (response.IsSuccessStatusCode)
{
var stringData = await response.Content.ReadAsStringAsync();
return JsonConvert.DeserializeObject<UserResponse>(stringData);
}
else
{
}