XML response error: Invalid at the top level of the document
I am getting an error back and following the API manual I received on how to encode my request. Below is my request..
string url = "[My url to send request to]";
string xmlrequest = "<serv_request><head><securityContext><account>[account]</account><key>[my account key]</key></securityContext></head><body><username>[my user name]</username></body></serv_request>";
NameValueCollection nvc = new NameValueCollection();
nvc.Add("xml", Server.UrlEncode(xmlrequest));
WebClient client = new WebClient();
byte[] byteresponse = client.UploadValues(url, nvc);
string xmlresponse = client.Encoding.GetString(byteresponse);
I am getting a response back with the error. Invalid at the top level of document.
Edit.. Adding the Instructions from the API Manual provided to me..
string url = " http://[domain_name]/_gateway/api/[filename].asp";
// formulate the XML request here
string xmlrequest = "<serv_request>...</serv_request>";
NameValueCollection nvc = new NameValueCollection();
nvc.Add("xml", Server.UrlEncode(xmlrequest));
WebClient client = new WebClient();
byte[] byteresponse = client.UploadValues(url, nvc);
string xmlresponse = client.Encoding.GetString(byteresponse);
Answer
I managed to resolve this. Instead of passing a string with all the xml in it and using Server.UrlEncode I used the XmlWriter class and StringBuilder. All your replies were helpful and much appriciated, I would up vote them but I cannot do that feature yet. Maybe this will help others in the future. Thanks
XmlWriter writer;
StringBuilder sb = new StringBuilder();
writer = XmlWriter.Create(sb);
writer.WriteStartElement("serv_request");
writer.WriteStartElement("head");
writer.WriteStartElement("securityContext");
writer.WriteStartElement("account");
writer.WriteString("MyAccountName");
writer.WriteEndElement();
writer.WriteStartElement("key");
writer.WriteString("MyKey");
writer.WriteEndElement(); //closes Key Element
writer.WriteEndElement(); // closes securityContent
writer.WriteEndElement(); //closes head
writer.WriteStartElement("body");
writer.WriteStartElement("username");
writer.WriteString("MyUserName");
writer.WriteEndElement(); // closes username
writer.WriteEndElement(); //closes body
writer.WriteEndElement(); //closes serv_request
writer.Close();
NameValueCollection nvc = new NameValueCollection();
nvc.Add("xml", sb.ToString());
WebClient client = new WebClient();
byte[] byteresponse = client.UploadValues(url, nvc);
string xmlresponse = client.Encoding.GetString(byteresponse);