C# 如何调用xmlpostapi

我需要使用POST参数调用API，例如：

• URL=
• ARGS=选项=蓝色&类型=汽车

我已经看过XDocument，但不确定如何在请求中发送参数。我也不确定如何异步调用，甚至不确定是否应该异步调用，或者在另一个线程中运行是否更好/更容易

我将从基于windows的C#应用程序中调用此功能。

您可以使用其中一个

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从哪里打电话？Javascript？如果是这样，您可以使用JQuery：

数据将包含您发布的结果

如果是从服务器端，您可以使用HttpWebRequest并使用参数写入其流

// Create a request using a URL that can receive a post. 
        WebRequest request = WebRequest.Create ("http://localhost/myAPI/");
        // Set the Method property of the request to POST.
        request.Method = "POST";
        // Create POST data and convert it to a byte array.
        string postData = "options=blue&type=car";
        byte[] byteArray = Encoding.UTF8.GetBytes (postData);
        // Set the ContentType property of the WebRequest.
        request.ContentType = "application/x-www-form-urlencoded";
        // Set the ContentLength property of the WebRequest.
        request.ContentLength = byteArray.Length;
        // Get the request stream.
        Stream dataStream = request.GetRequestStream ();
        // Write the data to the request stream.
        dataStream.Write (byteArray, 0, byteArray.Length);
        // Close the Stream object.
        dataStream.Close ();
        // Get the response.
        WebResponse response = request.GetResponse ();
        // Display the status.
        Console.WriteLine (((HttpWebResponse)response).StatusDescription);
        // Get the stream containing content returned by the server.
        dataStream = response.GetResponseStream ();
        // Open the stream using a StreamReader for easy access.
        StreamReader reader = new StreamReader (dataStream);
        // Read the content.
        string responseFromServer = reader.ReadToEnd ();
        // Display the content.
        Console.WriteLine (responseFromServer);
        // Clean up the streams.
        reader.Close ();
        dataStream.Close ();
        response.Close ();

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在环中抛出另一个选项，您可能想考虑使用.<代码> PASTASYNC 方法> .NET中的代码> HTTPcli客< /代码>。一个公认的未经测试的刺：

        HttpClient client = new HttpClient();
        var task = client.PostAsync(string.Format("{0}{1}", "http://localhost/myAPI", "?options=blue&type=car"), null);
        Car car = task.ContinueWith(
            t =>
            {
                return t.Result.Content.ReadAsAsync<Car>();
            }).Unwrap().Result;

HttpClient=newhttpclient（）；
var task=client.PostAsync（string.Format（“{0}{1}”）http://localhost/myAPI“，”？选项=蓝色，类型=汽车”），空）；
Car Car=任务。继续(
t=>
{
返回t.Result.Content.ReadAsAsync（）；
}).Unwrap（）.Result；

在asp.NET中 在HTTP中

POST/api/somename/1.1
主持人：google.com
id:merchantid
HASH:generatedshah
个人

Phython-http.client

导入http.client
导入模拟类型
conn=http.client.HTTPSConnection（“url”）
有效载荷=“个人”
标题={
'id'：'givenid'，
'HASH'：'generatedhash'
}
conn.request（“POST”、“/api/blacklist/verify”、有效负载、标题）
res=conn.getresponse（）
data=res.read（）
打印（数据解码（“utf-8”））

来自问题：

我会从基于windows的C#应用程序中调用它。

谢谢你的提示，这很有帮助。我还发现我还需要设置client.Headers。。标题[“内容类型”]=“应用程序/x-www-form-urlencoded”；

// Create a request using a URL that can receive a post. 
        WebRequest request = WebRequest.Create ("http://localhost/myAPI/");
        // Set the Method property of the request to POST.
        request.Method = "POST";
        // Create POST data and convert it to a byte array.
        string postData = "options=blue&type=car";
        byte[] byteArray = Encoding.UTF8.GetBytes (postData);
        // Set the ContentType property of the WebRequest.
        request.ContentType = "application/x-www-form-urlencoded";
        // Set the ContentLength property of the WebRequest.
        request.ContentLength = byteArray.Length;
        // Get the request stream.
        Stream dataStream = request.GetRequestStream ();
        // Write the data to the request stream.
        dataStream.Write (byteArray, 0, byteArray.Length);
        // Close the Stream object.
        dataStream.Close ();
        // Get the response.
        WebResponse response = request.GetResponse ();
        // Display the status.
        Console.WriteLine (((HttpWebResponse)response).StatusDescription);
        // Get the stream containing content returned by the server.
        dataStream = response.GetResponseStream ();
        // Open the stream using a StreamReader for easy access.
        StreamReader reader = new StreamReader (dataStream);
        // Read the content.
        string responseFromServer = reader.ReadToEnd ();
        // Display the content.
        Console.WriteLine (responseFromServer);
        // Clean up the streams.
        reader.Close ();
        dataStream.Close ();
        response.Close ();

        HttpClient client = new HttpClient();
        var task = client.PostAsync(string.Format("{0}{1}", "http://localhost/myAPI", "?options=blue&type=car"), null);
        Car car = task.ContinueWith(
            t =>
            {
                return t.Result.Content.ReadAsAsync<Car>();
            }).Unwrap().Result;

var client = new RestClient("www.api.url");
client.Timeout = -1;
var request = new RestRequest(Method.POST);
request.AddHeader("id", "givenid");
request.AddHeader("HASH", "generatedHash");
request.AddParameter("text/plain", "fullxml or body",  ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
Console.WriteLine(response.Content);

POST /api/somename/1.1
Host: google.com
id: merchantid
HASH: generatedshah
<node1><element>Individual</element></node1>

import http.client
import mimetypes
conn = http.client.HTTPSConnection("url")
payload = "<Node><Element>Individual</Element></Node>"
headers = {
  'id': 'givenid',
  'HASH': 'generatedhash'
}
conn.request("POST", "/api/blacklist/verify", payload, headers)
res = conn.getresponse()
data = res.read()
print(data.decode("utf-8"))