为什么 RestSharp 请求方法从 POST 更改为 GET？

Question

I am using RestSharp to post some data to a url. I am monitoring this operation using fiddler. when I use Simple .net HttpClient with this code:

using (var client = new HttpClient())
        {
            var values = new Dictionary<string, string>  {
                { "par1", "1395/11/29" },
                { "par2", "2" }};
            var content = new FormUrlEncodedContent(values);
            var response = await client.PostAsync("http://someurl.com/resource", content);
            var responseString = await response.Content.ReadAsStringAsync();
}

every thing is good and this return true result. but when i try to use RestSharp with this code:

 RestSharp.RestRequest request = new RestSharp.RestRequest("/resource");
 request.AddParameter("par1", val, RestSharp.ParameterType.RequestBody);
 request.AddParameter("par2", val, RestSharp.ParameterType.RequestBody);
 request.AddHeader("Origin", "http://someurl.com");
 request.Method = RestSharp.Method.POST;
 RestSharp.RestClient client = new RestSharp.RestClient("http://someurl.com");
 var response = client.Execute(request);

then fiddler show me the request sent by GET method instead of POST?

I check another time my fiddler and found this issue:

Content-Type: par1

why this is happening for me?

Answer 1

Change your ParameterType argument to GetOrPost and it will work

request.AddParameter("par1", val, RestSharp.ParameterType.GetOrPost);
request.AddParameter("par2", val, RestSharp.ParameterType.GetOrPost);

Answer 2

1. Initialize Request as POST with JSON.

   var client = new RestClient(PreUri);

   var request = new RestRequest(Uri, Method.POST) {RequestFormat = DataFormat.Json};

2. Add object in body

   request.AddBody(obj);

3. Execute

   var cancellationTokenSource = new CancellationTokenSource();

   var response = await client.ExecuteTaskAsync(request, cancellationTokenSource.Token);

Answer 3

I was stupidly doing mistake to call "client.Get" instead of "client.Post". May be this post helps other.

var client = new RestClient("https://someservice.com");
var request = new RestRequest("/token/", Method.POST, DataFormat.Json).AddJsonBody(SomeObject);
var response = client.Get(request);

I was expecting this code to make POST request. Because i specified it as Method.POST . But after a few hours, i saw my mistake. Yeas i was specifying the method. But just after i am calling client.Get(request) ; This changes the metod to GET. So, the right way to use POST request is like follows:

var client = new RestClient("https://someservice.com");
var request = new RestRequest("/token/", DataFormat.Json).AddJsonBody(SomeObject);
var response = client.Post(request);