private string DoRequest(HttpWebRequest wreq, AlchemyAPI_BaseParams.OutputMode outputMode)
{
using (HttpWebResponse wres = wreq.GetResponse() as HttpWebResponse)
{
StreamReader r = new StreamReader(wres.GetResponseStream());
string xml = r.ReadToEnd();
if (string.IsNullOrEmpty(xml))
{
throw new XmlException("The API request returned back an empty response. Please verify that the url is correct.");
}
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.LoadXml(xml);
XmlElement root = xmlDoc.DocumentElement;
if (AlchemyAPI_BaseParams.OutputMode.XML == outputMode)
{
XmlNode status = root.SelectSingleNode("/results/status");
if (status.InnerText != "OK")
{
string errorMessage = "Error making API call.";
try
{
XmlNode statusInfo = root.SelectSingleNode("/results/statusInfo");
errorMessage = statusInfo.InnerText;
}
catch
{
// some problem with the statusInfo. Return the generic message.
}
System.ApplicationException ex = new System.ApplicationException(errorMessage);
throw ex;
}
}
else if (AlchemyAPI_BaseParams.OutputMode.RDF == outputMode)
{
XmlNamespaceManager nm = new XmlNamespaceManager(xmlDoc.NameTable);
nm.AddNamespace("rdf", "http://www.w3.org/1999/02/22-rdf-syntax-ns#");
nm.AddNamespace("aapi", "http://rdf.alchemyapi.com/rdf/v1/s/aapi-schema#");
XmlNode status = root.SelectSingleNode("/rdf:RDF/rdf:Description/aapi:ResultStatus", nm);
if (status.InnerText != "OK")
{
System.ApplicationException ex =
new System.ApplicationException("Error making API call.");
throw ex;
}
}
return(xml);
}
}
private string DoRequest(HttpWebRequest wreq, AlchemyAPI_BaseParams.OutputMode outputMode)
{
using (var wres = wreq.GetResponse() as HttpWebResponse)
{
var r = new StreamReader(wres.GetResponseStream());
var json = r.ReadToEnd();
return(json);
}
}
private string DoRequest(HttpWebRequest wreq, AlchemyAPI_BaseParams.OutputMode outputMode)
{
using (HttpWebResponse wres = wreq.GetResponse() as HttpWebResponse)
{
StreamReader r = new StreamReader(wres.GetResponseStream());
string xml = r.ReadToEnd();
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.LoadXml(xml);
XmlElement root = xmlDoc.DocumentElement;
if (AlchemyAPI_BaseParams.OutputMode.XML == outputMode)
{
XmlNode status = root.SelectSingleNode("/results/status");
if (status.InnerText != "OK")
{
System.ApplicationException ex =
new System.ApplicationException("Error making API call.");
throw ex;
}
}
else if (AlchemyAPI_BaseParams.OutputMode.RDF == outputMode)
{
XmlNamespaceManager nm = new XmlNamespaceManager(xmlDoc.NameTable);
nm.AddNamespace("rdf", "http://www.w3.org/1999/02/22-rdf-syntax-ns#");
nm.AddNamespace("aapi", "http://rdf.alchemyapi.com/rdf/v1/s/aapi-schema#");
XmlNode status = root.SelectSingleNode("/rdf:RDF/rdf:Description/aapi:ResultStatus", nm);
if (status.InnerText != "OK")
{
System.ApplicationException ex =
new System.ApplicationException("Error making API call.");
throw ex;
}
}
return(xml);
}
}
