private async Task <List <T> > IterateThroughPaginationAsync <T>(LightspeedRequest r, T response)
{
var additionalResponses = new List <T>();
if (!NeedToIterateThroughPagination(response, r))
{
return(additionalResponses);
}
var paginatedRequest = ( IRequestPagination )r;
var paginatedResponse = ( IPaginatedResponse )response;
if (paginatedRequest.GetOffset() != 0)
{
return(additionalResponses);
}
var numPages = paginatedRequest.GetLimit() / paginatedResponse.GetCount() + 1;
for (int pageNum = 1; pageNum < numPages; pageNum++)
{
paginatedRequest.SetOffset(pageNum * 10);
additionalResponses.Add(await GetResponseAsync <T>(r));
}
return(additionalResponses);
}
private static bool NeedToIterateThroughPagination <T>(T response, LightspeedRequest r)
{
var paginatedResponse = response as IPaginatedResponse;
var requestWithPagination = r as IRequestPagination;
return(paginatedResponse != null && requestWithPagination != null &&
paginatedResponse.GetCount() > requestWithPagination.GetLimit());
}
public async Task <T> GetResponseAsync <T>(LightspeedRequest request)
{
var webRequest = this.CreateHttpWebRequest(_config.Endpoint + request.GetUri());
var body = request.GetBody();
if (body != null)
{
webRequest.Method = "PUT";
webRequest.ContentLength = body.Length;
Stream dataStream = webRequest.GetRequestStream();
dataStream.Write(body, 0, body.Length);
dataStream.Close();
webRequest.ContentType = "text/xml";
}
var response = await webRequest.GetResponseAsync();
var stream = response.GetResponseStream();
var deserializer =
new XmlSerializer(typeof(T));
var result = ( T )deserializer.Deserialize(stream);
var possibleAdditionalResponses = await IterateThroughPaginationAsync <T>(request, result);
var aggregatedResult = result as IPaginatedResponse;
if (aggregatedResult != null)
{
possibleAdditionalResponses.ForEach(resp => aggregatedResult.Aggregate(( IPaginatedResponse )resp));
}
return(result);
}
