从标准.NET rest迁移到RestSharp

Question

在大多数情况下,我已经很快将代码从标准.NET代码移动到使用RestSharp.这对于GET进程来说已经足够简单,但我对POST进程感到难过

考虑以下

var request = System.Net.WebRequest.Create("https://mytestserver.com/api/usr") as System.Net.HttpWebRequest;
request.Method = "POST";
request.ContentType = "application/json;version=1";
request.Headers.Add("Content-Type", "application/json;version=1");
request.Headers.Add("Accepts", "application/json;version=1");
request.Headers.Add("Authorize", "key {key}");
using (var writer = new System.IO.StreamWriter(request.GetRequestStream())) {
  byte[] byteArray = System.Text.Encoding.UTF8.GetBytes("{\n    \"firstName\": \"Dan\",\n    \"lastName\": \"Eccles\",\n    \"preferredNumber\": 1,\n    \"email\" : \"testuser@example.com\",\n    \"password\": \"you cant get the wood\"\n}");
  request.ContentLength = byteArray.Length;
  writer.Write(byteArray);
  writer.Close();
}
string responseContent;
using (var response = request.GetResponse() as System.Net.HttpWebResponse) {
using (var reader = new System.IO.StreamReader(response.GetResponseStream())) {
  responseContent = reader.ReadToEnd();
}

除了序列化代码之外,这是相当直接的.有什么特别的方法可以为RestSharp做这个吗？我试过创建一个对象并使用

var json = JsonConvert.SerializeObject(user);
restRequest.RequestFormat = DataFormat.Json;
restRequest.AddBody(json);

但服务器仍然返回错误.

当用户传入错误数据时,我目前还在使用JSON.NET对反序列化进行反序列化.有没有办法可以使用RestSharp基于单个字符串反序列化为错误对象？

Answer 1

你很接近,但你不必担心使用RestSharp进行序列化.

var request = new RestRequest(...);
request.RequestFormat = DataFormat.Json;
request.AddBody(user);  // user is of type User (NOT string)

通过告诉它格式为JSON,然后传递已经序列化的JSON字符串,RestSharp实际上再次将其编码为字符串.

所以你传递了字符串:{"firstName":"foo"}它实际上作为JSON字符串对象被发送到服务器:( "{\"firstName\":\"foo\"}"注意你的JSON如何作为字符串文字进行转义),这就是它失败的原因.

请注意,您还可以为请求使用匿名对象:

var request = new RestRequest(...);
request.RequestFormat = DataFormat.Json;
request.AddBody(new{ 
    firstName = "Dan",
    lastName = "Eccles",
    preferredNumber = 1,
    // etc..
  });

您在响应中使用相同的类型对象(例如,RestSharp为您反序列化):

var response = client.Execute<UserResponse>(request);
// if successful, response.Data is of type UserResponse