public async Task <bool> FireAPISeachRequest()
{
bool _b_Result = false;
try
{
if (this._mEn_RequestState != GoogleSearchAPIRequestState.Ready)
{
throw new Exception("Request has already been fired with this instance");
}
if (this._mStr_SearchTerms == null)
{
throw new Exception("Search terms can not be NULL");
}
// Instantiating object of HttpClient
HttpClient _obj_HttpClient = new HttpClient();
// Setting base URL for HttpClient object to Google Custom Search API's url
_obj_HttpClient.BaseAddress = new Uri(ConfigurationManager.AppSettings["GoogleCustomSearchAPIUrl"]);
//_obj_HttpClient.BaseAddress = new Uri(GoogleSearchAPIRequestUrl.APIRequestUrl());
_obj_HttpClient.DefaultRequestHeaders.Accept.Clear();
// Set time out length for request
TimeSpan _obj_TmSpn = new TimeSpan(0, 0, 0, 30, 0);
_obj_HttpClient.Timeout = _obj_TmSpn;
// Setting request mode is now in requesting
this._mEn_RequestState = GoogleSearchAPIRequestState.Requesting;
// Firing asynchronus request to Google
HttpResponseMessage _obj_Response
= await _obj_HttpClient.GetAsync(
"?key=" + ConfigurationManager.AppSettings["GoogleCustomSearchAPIKey"] +
"&q=" + HttpUtility.UrlEncode(_mStr_SearchTerms) +
"&cx=" + ConfigurationManager.AppSettings["GoogleCustomSearchAPICX"] +
"&start=" + _mInt_StartIndex.ToString() +
"&googlehost=google.com.au");
if (_obj_Response != null && _obj_Response.IsSuccessStatusCode)
{
// Response is fully consumed by program and in state ready to be returned to the user!
_mStr_Response = await _obj_Response.Content.ReadAsStringAsync();
this._mEn_RequestState = GoogleSearchAPIRequestState.ResponseComplete;
_b_Result = true;
}
else
{
throw new Exception("Request to Google Custom Search API failed");
}
}
catch (Exception e)
{
this._mEn_RequestState = GoogleSearchAPIRequestState.Error;
this._mStr_SearchError = e.Message;
}
// return the overal result of the attempted request
return(_b_Result);
}
public GoogleSearchAPIRequest(string str_SearchTerms, int int_StartIndex)
{
this._mEn_RequestState = GoogleSearchAPIRequestState.Ready;
this._mStr_SearchTerms = str_SearchTerms;
this._mInt_StartIndex = int_StartIndex;
}
