如何使用 Bearer Token POST JSon

Question

我可以使用类似的代码和 Bearer Token 执行 GET，但似乎无法执行 POST。

当我 copy/paste 将 Json、URL 和 Bearer Token 放入 Postman 时，它工作得很好。但是从 C# 执行此操作时出现此错误：

"StatusCode: 400, ReasonPhrase: 'Bad Request', Version: 1.1, Content: System.Net.Http.StreamContent, Headers: { Transfer-Encoding: chunked Connection: keep-alive Expect-CT: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct" CF-RAY: 4c190ad8ad786539-SYD Date: Wed, 03 Apr 2019 06:38:54 GMT Set-Cookie: __cfduid=dc0232e99fa0fefc0bd728258229dd5d51554273534; expires=Thu, 02-Apr-20 06:38:54 GMT; path=/; domain=.paymentsapi.io; HttpOnly; Secure Server: cloudflare X-Powered-By: ASP.NET Content-Type: application/json; charset=utf-8 }"

谁能看出我做错了什么？

提前致谢。

JsonSerializerSettings jss = new JsonSerializerSettings();
string strValue = JsonConvert.SerializeObject(TestMaster, jss);
lblJSon.Text = strValue;        // This Json is valid
ByteArrayContent bytecontent = new ByteArrayContent(System.Text.Encoding.UTF8.GetBytes(strValue));
bytecontent.Headers.ContentType = new MediaTypeHeaderValue("application/json");

string AccessToken = lblToken.Text;

HttpClient tRequest = new HttpClient();
tRequest.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", AccessToken);

Task<HttpResponseMessage> getTask = tRequest.PostAsJsonAsync(new Uri(strURL).ToString(), bytecontent);

HttpResponseMessage urlContents = await getTask;

Console.WriteLine("urlContents.ToString");
lblEDDR.Text = urlContents.ToString();

Answer 1

PostAsJsonAsync 将您的 ByteArrayContent 转换为 json 对象。您可以像这样直接将以太 PostAsJsonAsync 与 TestMaster 一起使用：

string AccessToken = lblToken.Text;

HttpClient tRequest = new HttpClient();
tRequest.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", AccessToken);

Task<HttpResponseMessage> getTask = tRequest.PostAsJsonAsync(new Uri(strURL).ToString(), TestMaster);

HttpResponseMessage urlContents = await getTask;

Console.WriteLine("urlContents.ToString");
lblEDDR.Text = urlContents.ToString();

或者您将 TestMaster 转换为 Json，然后将 PostAsync 与 StringContent 对象一起使用。像这样：

JsonSerializerSettings jss = new JsonSerializerSettings();
string strValue = JsonConvert.SerializeObject(TestMaster, jss);
lblJSon.Text = strValue;        // This Json is valid
StringContent strcontent = new StringContent (strValue);
bytecontent.Headers.ContentType = new MediaTypeHeaderValue("application/json");

string AccessToken = lblToken.Text;

HttpClient tRequest = new HttpClient();
tRequest.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", AccessToken);

Task<HttpResponseMessage> getTask = tRequest.PostAsync(new Uri(strURL).ToString(), bytecontent);

HttpResponseMessage urlContents = await getTask;

Console.WriteLine("urlContents.ToString");
lblEDDR.Text = urlContents.ToString();