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 = "/v2/";
string gatewayhost = "api-worldcheck.refinitiv.com ";
// Here is where you enter your api keys
string apikey = "xxxx";
string apisecret = "xxx";
string requestendpoint = "https://api-worldcheck.refinitiv.com/v2/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);
When sending this request I am getting error.
System.Net.WebException: 'The remote server returned an error: (401) Unauthorized.'
