/// <summary>
/// Call an API using POST method
/// </summary>
/// <param name="apiMethodEndpoint">API end point like: /api/users/get_all</param>
/// <param name="param">key value pair of the body post params</param>
/// <returns></returns>
public string Post(string apiMethodEndpoint, Dictionary <string, string> param)
{
WebClient client = new WebClient();
OAuthBase oauth = new OAuthBase();
string requestBody = "";
if (param != null && param.Count > 0)
{
foreach (KeyValuePair <string, string> keyValuePair in param)
{
requestBody += Uri.EscapeDataString(keyValuePair.Key) + "=" + Uri.EscapeDataString(keyValuePair.Value) + "&";
}
requestBody = requestBody.Trim('&');
requestBody += Environment.NewLine;
}
Uri uri = new Uri(BaseUrl + apiMethodEndpoint);
string bodyHash = oauth.ComputeHash(HashAlgorithm.Create("SHA1"), requestBody);
string bodyHashEscaped = Uri.EscapeDataString(bodyHash);
string timestamp = oauth.GenerateTimeStamp();
string nounce = oauth.GenerateNonce();
string normalizedUrl;
string normalizedParams;
//create signature
string signature = oauth.GenerateSignature(uri, Key, Secret, AccessToken.Token, AccessToken.TokenSecret, "POST", timestamp, nounce, OAuthBase.SignatureTypes.HMACSHA1, bodyHashEscaped, null, out normalizedUrl, out normalizedParams);
string authorizationParams = string.Format(
"OAuth oauth_body_hash=\"{5}\", oauth_consumer_key=\"{0}\", oauth_nonce=\"{4}\", oauth_signature=\"{2}\", oauth_signature_method=\"HMAC-SHA1\", oauth_timestamp=\"{3}\", oauth_token=\"{1}\", oauth_version=\"1.0\"",
Uri.EscapeDataString(Key),
Uri.EscapeDataString(AccessToken.Token),
Uri.EscapeDataString(signature),
Uri.EscapeDataString(timestamp),
Uri.EscapeDataString(nounce),
Uri.EscapeDataString(bodyHash)
);
client.Headers.Add("Content-Type", "x-www-formurlencoded");
client.Headers.Add("Authorization", authorizationParams);
try
{
var result = client.UploadString(uri, requestBody);
return(result);
}
catch (WebException ex)
{
ProcessException(ex);
throw; //todo add exception
}
}
public BaseToken GetAccessToken(BaseToken requestToken, string verifier)
{
string normalizedUrl = "";
string normalizedParams = "";
OAuthBase oauth = new OAuthBase();
string timestamp = oauth.GenerateTimeStamp();
string nounce = oauth.GenerateNonce();
//create uri
string requestBody = "";
string bodyHash = oauth.ComputeHash(HashAlgorithm.Create("SHA1"), requestBody);
string bodyHashEscaped = Uri.EscapeDataString(bodyHash);
//create signature
string signature = oauth.GenerateSignature(GetAccessTokenUri(), Key, Secret, requestToken.Token, requestToken.TokenSecret, "POST", timestamp, nounce, OAuthBase.SignatureTypes.HMACSHA1, bodyHashEscaped, verifier, out normalizedUrl, out normalizedParams);
try
{
//call remote server to get token
WebClient client = new WebClient();
string authorizationParams =
string.Format(
"OAuth oauth_body_hash=\"{6}\", oauth_consumer_key=\"{0}\", oauth_nonce=\"{4}\", oauth_signature=\"{2}\", oauth_signature_method=\"HMAC-SHA1\", oauth_timestamp=\"{3}\", oauth_token=\"{1}\", oauth_verifier=\"{5}\", oauth_version=\"1.0\"",
Uri.EscapeDataString(Key),
Uri.EscapeDataString(requestToken.Token),
Uri.EscapeDataString(signature),
Uri.EscapeDataString(timestamp),
Uri.EscapeDataString(nounce),
Uri.EscapeDataString(verifier),
Uri.EscapeDataString(bodyHash)
);
client.Headers.Add("Authorization", authorizationParams);
var result = client.UploadString(GetAccessTokenUri(), requestBody);
AccessToken = ParseAuthTokenResponse(result);
return(AccessToken);
} catch (WebException ex) {
ProcessException(ex);
throw; //todo add exception
}
}
public BaseToken GetRequestToken()
{
try
{
string normalizedUrl;
string normalizedParams;
OAuthBase oauth = new OAuthBase();
string timestamp = oauth.GenerateTimeStamp();
string nounce = oauth.GenerateNonce();
string signature = oauth.GenerateSignature(GetRequestTokenUri(), Key, Secret, null, null, "GET", timestamp, nounce, OAuthBase.SignatureTypes.HMACSHA1, null, null, out normalizedUrl, out normalizedParams);
//call remote server to get token
WebClient client = new WebClient();
var result = client.DownloadString(normalizedUrl + "?" + normalizedParams + "&oauth_signature=" + signature);
return(ParseAuthTokenResponse(result));
}
catch (WebException ex)
{
ProcessException(ex);
throw; //todo add exception
}
}
