如何使用C＃调用web api [英] How to call web api using C#

问题描述

我正在调用ExpertTexting Api发送短信，但是当我尝试使用post show show invalidnternter发送消息时，我的get方法正常工作。以下是我的帖子方法



私有静态字符串BaseUrl =https://www.experttexting.com/ExptRestApi/sms/json//Message/Send;

var data =？username =+ username +& password =+ password +& api_key =+ apikey +& from =+ from +& to =使用（var client = new HttpClient（））

{

var serializedProduct = JsonConvert.SerializeObject（data）;

var content = new StringContent（serializedProduct，Encoding.UTF8，application / json） ;

response = await client.PostAsJsonAsync（BaseUrl，content）;

}



什么我试过了：



私有静态字符串BaseUrl =https://www.experttexting.com/ExptRestApi/sms/json//Message/Send ;

var data =？username =+ username +& password =+ password +& api_key =+ apikey + & from =+ from +& to =+ to +& text =+ text +& type = text;



使用（var client = new HttpClient（））

{

var serializedProduct = JsonConvert.SerializeObject（data）;

var content = new StringContent（serializedProduct，Encoding.UTF8，application / json）;

response = await client.PostAsJsonAsync（BaseUrl，content）;

}

i am calling ExpertTexting Api for sending SMS but my get Method is working fine when i try to send message using post its show invalid paramenter. below is my post method

private static string BaseUrl = "https://www.experttexting.com/ExptRestApi/sms/json//Message/Send";
var data = "?username=" + username + "&password=" + password + "&api_key=" + apikey + "&from=" + from + "&to=" + to + "&text=" + text + "&type=text";

using (var client = new HttpClient())
{
var serializedProduct = JsonConvert.SerializeObject(data);
var content = new StringContent(serializedProduct, Encoding.UTF8, "application/json");
response = await client.PostAsJsonAsync(BaseUrl, content);
}

What I have tried:

private static string BaseUrl = "https://www.experttexting.com/ExptRestApi/sms/json//Message/Send";
var data = "?username=" + username + "&password=" + password + "&api_key=" + apikey + "&from=" + from + "&to=" + to + "&text=" + text + "&type=text";

using (var client = new HttpClient())
{
var serializedProduct = JsonConvert.SerializeObject(data);
var content = new StringContent(serializedProduct, Encoding.UTF8, "application/json");
response = await client.PostAsJsonAsync(BaseUrl, content);
}

推荐答案

您混合了多种发送数据的方式：

• 数据字符串包含 application / x-www-form-urlencoded data：

You're mixing up multiple ways of sending data:

• The data string contains application/x-www-form-urlencoded data:

?username=...&type=text

然后调用 JsonConvert.SerializeObject 将该字符串转换为JSON：

You then call JsonConvert.SerializeObject to convert that string to JSON:

"?username=...&type=text"

你然后调用 PostAsJsonAsync ，它将再次对数据进行JSON编码：

"\"?username=...&type=text\""

using (var client = new HttpClient())
{
    response = await client.PostAsJsonAsync(BaseUrl, new
    {
        username,
        password,
        api_key = apikey,
        from,
        to,
        text,
        type = "text"
    });
} 

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