Calling Rest Api with HTTP authentication - asp.net

Question

I have to call a Rest API securely. I have an authenticate API which returns a token. I need to add this token the API I am calling.
This is the usual way I know of calling the Rest API. I need to append string token to this request.
// *** Establish the request
string token= getAuthenticate(username,password,out token );
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(lcUrl);
// *** Retrieve request info headers
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
StreamReader loResponseStream = new StreamReader(response.GetResponseStream());
string lcHtml = loResponseStream.ReadToEnd();
response.Close();
loResponseStream.Close();

Answer 1

Not Sure what's the problem... To get the response from the Rest Uri you can do like below :
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(yourUrl + token); // Append Here
request.Method = "GET"; // GET or POST Define Here
//http.Accept = "application/json"; // Add if require
//http.ContentType = "application/json"; // Add if require
String test = String.Empty;
using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
{
Stream dataStream = response.GetResponseStream();
StreamReader reader = new StreamReader(dataStream);
test = reader.ReadToEnd();
reader.Close();
dataStream.Close();
}
Or You can use Simple requests through WebClient:
For Example:
WebClient webClient = new WebClient();
string json = string.Empty;
// Downloads JSon String
json = webClient.DownloadString("http://api.openweathermap.org/data/2.5/weather?q=London,uk"); // Replace your URL + Token...
There is third party component also available = RestSharp.

Answer 2

I am using HttpClient, no different at all. I thought this way more clean : http://www.asp.net/web-api/overview/advanced/calling-a-web-api-from-a-net-client
var uri = "http://example.com";
using (HttpClient httpClient = new HttpClient())
{
httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", token_you_want_to_used);
var response = await httpClient.GetAsync(uri);
string result = await response.Content.ReadAsStringAsync();
}