private UserInfo GetUserData(string token) { var parameters = new NameValueCollection { { "oauth_consumer_key", _appId }, { "oauth_nonce", SignatureGenerator.GenerateNonce() }, { "oauth_signature_method", SignatureMethod }, { "oauth_timestamp", SignatureGenerator.GetTimestamp() }, { "oauth_token", token }, { "oauth_version", "1.0" }, }; var parametersString = OAuthHelpers.ConstructQueryString(parameters); var signature = _signatureGenerator.GenerateSignature("GET", TumblrApi + "v2/user/info", parametersString); parameters.Set("oauth_signature", signature); var auth = "OAuth" + OAuthHelpers.ConstructQueryString(parameters, ","); var userInfoUrl = OAuthHelpers.BuildUri(TumblrApi, "v2/user/info", parameters); var response = OAuthHelpers.AuthorizationLoad(userInfoUrl, auth); dynamic obj = JObject.Parse(response); return(new UserInfo { Id = obj.response.user.blogs[0].url, UserName = obj.response.user.name }); }