既然寫到httpClient就順便也記錄一下這個組件，雖然我比較愛用原生的方式，但是就當作增廣見聞吧 !
var client = new RestClient("http://example.com");
// client.Authenticator = new HttpBasicAuthenticator(username, password);
var request = new RestRequest("resource/{id}", Method.POST);
request.AddParameter("name", "value"); // adds to POST or URL querystring based on Method
request.AddUrlSegment("id", "123"); // replaces matching token in request.Resource
// add parameters for all properties on an object
request.AddObject(object);
// or just whitelisted properties
request.AddObject(object, "PersonId", "Name", ...);
// easily add HTTP Headers
request.AddHeader("header", "value");
// add files to upload (works with compatible verbs)
request.AddFile("file", path);
// execute the request
IRestResponse response = client.Execute(request);
var content = response.Content; // raw content as string
// or automatically deserialize result
// return content type is sniffed but can be explicitly set via RestClient.AddHandler();
IRestResponse<Person> response2 = client.Execute<Person>(request);
var name = response2.Data.Name;
// or download and save file to disk
client.DownloadData(request).SaveAs(path);
// easy async support
await client.ExecuteAsync(request);
// async with deserialization
var asyncHandle = client.ExecuteAsync<Person>(request, response => {
Console.WriteLine(response.Data.Name);
});
// abort the request on demand
asyncHandle.Abort();