Simple C# class to provide an easy way of accessing RESTful API's. Based on the code of @AdamNThompson, this version provide extras like the HTTP PUT verb, possiblity to add headers, new constructors and some little code improvements.
Just create an instance of the RestClient class, assign the value of your endpoint (the endpoint is the URL of the REST service you are attempting to call), and call the MakeRequest method.
Basic GET call.
string endPoint = @"http://jsonplaceholder.typicode.com/posts";
var client = new RestClient(endPoint);
var json = client.MakeRequest();using headers for Basic access authentication
.....
PUT example using System.Web.Script.Serialization and try catch
try
{
string endPoint = @"http://jsonplaceholder.typicode.com/posts/1";
dynamic data = new {
id = 1,
title = "foo",
body = "bar",
userId = 1
};
var serializer = new JavaScriptSerializer();
var json = serializer.Serialize(data);
var client = new RestClient(endPoint, HttpVerb.PUT, "application/json", json);
return client.MakeRequest();
}
catch (WebException webExcp)
{
Console.WriteLine("A WebException has been caught.");
// Write out the WebException message.
Console.WriteLine(webExcp.ToString());
// Get the WebException status code.
WebExceptionStatus status = webExcp.Status;
// If status is WebExceptionStatus.ProtocolError,
// there has been a protocol error and a WebResponse
// should exist. Display the protocol error.
if (status == WebExceptionStatus.ProtocolError) {
Console.Write("The server returned protocol error ");
// Get HttpWebResponse so that you can check the HTTP status code.
HttpWebResponse httpResponse = (HttpWebResponse)webExcp.Response;
Console.WriteLine((int)httpResponse.StatusCode + " - "
+ httpResponse.StatusCode);
}
}
catch (Exception e)
{
// Code to catch other exceptions goes here.
}Note some services return an HTTP status code even when the request went through, for example when searching for a resource but none are found the server, instead of returning a response with data, may return
404 Not Founderror. This errors must be handle inside the try catch.