Hi team,
I tried the sample code provided previously on a C# console project, which worked.
I however found the same set of code not working in a web application project (MVC.Net) when I paste the code in C# controller. I am getting the following error. Pasted the full code below and masked the api key and api secret.
static void Main(string[] args)
{
DateTime dateValue = DateTime.UtcNow; // get the datetime NOW GMT
string date = dateValue.ToString("R"); // WC1 header requires GMT datetime stamp
Console.WriteLine(date);
//set host and credentials to the WC1 API Pilot server WC1SampleClientAPI account
string gatewayurl = "/v1/";
string gatewayhost = "rms-world-check-one-api-pilot.thomsonreuters.com";
// Here is where you enter your api keys
string apikey = "";
string apisecret = "";
string requestendpoint = "https://rms-world-check-one-api-pilot.thomsonreuters.com/v1/groups";
// Assemble the GET request - NOTE every character including spaces have to be EXACT
// for the API server to decode the authorization signature
string dataToSign = "(request-target): get " + gatewayurl + "groups\n" +
"host: " + gatewayhost + "\n" + // no https only the host name
"date: " + date; // GMT date as a string
// The Request and API secret are now combined and encrypted
string hmac = generateAuthHeader(dataToSign, apisecret);
// Assemble the authorization string - This needs to match the dataToSign elements
// i.e. requires ONLY host date (no content body for a GET request)
//- NOTE every character including spaces have to be EXACT else decryption will fail with 401 Unauthorized
string authorisation = "Signature keyId=\"" + apikey + "\",algorithm=\"hmac-sha256\",headers=\"(request-target) host date\",signature=\"" + hmac + "\"";
// Send the Request to the API server
HttpWebRequest WebReq = (HttpWebRequest)WebRequest.Create(requestendpoint);
// Set the Headers
WebReq.Method = "GET";
WebReq.Headers.Add("Authorization", authorisation);
WebReq.Headers.Add("Cache-Control", "no-cache");
WebReq.Date = dateValue; // use datetime value GMT time
// Get the Response - Status OK
HttpWebResponse WebResp = (HttpWebResponse)WebReq.GetResponse();
// Status information about the request
Console.WriteLine(WebResp.StatusCode);
Console.WriteLine(WebResp.ResponseUri);
// Get the Response data
Stream Answer = WebResp.GetResponseStream();
StreamReader _Answer = new StreamReader(Answer);
string jsontxt = _Answer.ReadToEnd();
// convert json text to a pretty printout
//var obj = Newtonsoft.Json.JsonConvert.DeserializeObject(jsontxt);
//var f = Newtonsoft.Json.JsonConvert.SerializeObject(obj, Newtonsoft.Json.Formatting.Indented);
//Console.WriteLine(f);
Console.WriteLine("Press any key");
Console.ReadKey(); // pause for any key
}
// Combine the data signature and the API secret key to get the HMAC
// This is the Microsoft HMACSHA256 code copied from the documentation
public static string generateAuthHeader(string dataToSign, string apisecret)
{
byte[] secretKey = Encoding.UTF8.GetBytes(apisecret);
HMACSHA256 hmac = new HMACSHA256(secretKey);
hmac.Initialize();
byte[] bytes = Encoding.UTF8.GetBytes(dataToSign);
byte[] rawHmac = hmac.ComputeHash(bytes);
return (Convert.ToBase64String(rawHmac));
}
Thanks
