查看HttpClient.PostAsync的响应体

Question

在Postman中创建POST，生成以下Curl:

curl --location --request POST 'https://authqa.cqi.newry.me.com/as/token.oauth2' 
--header 'Authorization: Basic QVBJX0JURUNSRUZEQVRBOlAzNkNEAAE3RVdGUzRPT0NLQlQ0SERaS1pGRTZHTksyQkNJTFVJWT0=' 
--header 'Content-Type: application/x-www-form-urlencoded' 
--header 'Cookie: PF=mgvtuOC0jyPx3Lbrmw1hTX; BIGipServerauthqa-9031=1948242442.18211.0000' 
--data-urlencode 'grant_type=client_credentials' 
--data-urlencode 'charset=utf-8'

返回如下主体:

{
"access_token": "generated_token",
"token_type": "Bearer",
"expires_in": 1799
}

我正在尝试使用HttpClient在c#中做等效的。

这是POST完成的地方:

var body = new StringContent("grant_type=client_credentials", Encoding.UTF8,
"application/x-www-form-urlencoded");
var httpResponseMessage = await _client.PostAsync("sa/token.oauth2", body);

我用httpResponseMessage.ToString()得到下面的结果。

StatusCode: 200, ReasonPhrase: 'OK', Version: 1.1, Content: System.Net.Http.HttpConnectionResponseContent, Headers:
{
Date: Sun, 17 Jan 2021 21:19:39 GMT
X-Frame-Options: SAMEORIGIN
Strict-Transport-Security: max-age=31536000
Content-Security-Policy: frame-ancestors *.cmegroup.com *.chicago.cme.com
X-XSS-Protection: 1;mode=block
Cache-Control: no-store, no-cache
Pragma: no-cache
Set-Cookie: PF=4sugakrnEHwY5zWIXYasGo;Path=/;Secure;HttpOnly;SameSite=None
Set-Cookie: BIGipServerauthqa-9031=1897910794.18211.0000; path=/; Httponly; Secure
Transfer-Encoding: chunked
Expires: Thu, 01 Jan 1970 00:00:00 GMT
Content-Type: application/json; charset=utf-8
}

我看不到上面发布的响应体，但我怀疑这是Content: System.Net.Http.HttpConnectionResponseContent。我不知道该怎么看。有人能告诉我，我是如何看待上面描述的肉体的吗?

Answer 1

HttpClientResponse包含内容，你可以这样读:

var body = new StringContent("grant_type=client_credentials", Encoding.UTF8,
"application/x-www-form-urlencoded");
var httpResponseMessage = await _client.PostAsync("sa/token.oauth2", body);
var responseContent = await httpResponseMessage.Content.ReadAsStringAsync(); // here you can read content as string
...

更多信息请点击这里。

Answer 2

httpResponseMessage.Content.ReadAsStringAsync().Result将输出我想要的，但它是阻塞。

var response = await client.PostAsync("sa/token.oauth2", body);
var content = await response.Content.ReadAsStringAsync();

请注意，您通常应该使用await-而不是.Result。

参见如何将HttpResponseMessage内容读取为文本