|
public GetRecentNews ( int startIndex, int pageSize = 20 ) : IEnumerable |
||
| startIndex | int | |
| pageSize | int | |
| return | IEnumerable |
|
// get : api/news?start=0&page=20
protected override string ProcessRequest()
{
var tableMgr = new TableManager();
int startIndex = defaultStartIndex;
int pageSize = defaultPageSize;
string mode = "get";
string newsId = string.Empty;
// get query string parameters
string queryParameters = this.Request.RequestUri.Query;
if (!string.IsNullOrWhiteSpace(queryParameters))
{
var qpParams = HttpUtility.ParseQueryString(queryParameters);
if (!string.IsNullOrEmpty(qpParams["mode"]))
{
mode = qpParams["mode"].ToString().ToLower();
}
if (!string.IsNullOrEmpty(qpParams["id"]))
{
newsId = qpParams["id"].ToString();
}
if (!string.IsNullOrEmpty(qpParams["start"]))
{
int.TryParse(qpParams["start"].ToString(), out startIndex);
}
if (!string.IsNullOrEmpty(qpParams["page"]))
{
int.TryParse(qpParams["page"].ToString(), out pageSize);
}
}
try
{
if (mode == "get")
{
string json;
if (startIndex == defaultStartIndex && pageSize == defaultPageSize)
{
if (!CacheManager.TryGet(CacheConstants.NewsJson, out json))
{
var news = tableMgr.GetRecentNews(startIndex, pageSize);
json = jsonSerializer.Value.Serialize(news);
CacheManager.Add(CacheConstants.NewsJson, json);
}
}
else
{
var news = tableMgr.GetRecentNews(startIndex, pageSize);
json = jsonSerializer.Value.Serialize(news);
}
return json;
}
else if (mode == "delete")
{
}
return jsonSerializer.Value.Serialize(new { Status = "Error", UserMessage = "News-id does not empty!" });
}
catch (Exception ex)
{
// if any error occured then return User friendly message with system error message
return jsonSerializer.Value.Serialize(new { Status = "Error", UserMessage = Constants.UM_WHILE_GETTING_TWEETS, ActualError = ex.Message });
}
}