I'm trying to utilize the HttpRequestCachePolicy in a code that download requests from a 3rd party service. My code is currently like this:
protected virtual XmlDocument Send(XmlDocument requestDoc)
{
// Get a SOAP request document that wraps the user request
XmlDocument soapRequestDocument = NewSoapRequestDocument();
InsertRequestDocumentIntoSoapRequestDocument(requestDoc, soapRequestDocument);
Debug.WriteLine(soapRequestDocument.OuterXml);
// Process the request
HttpWebRequest webRequest = HttpWebRequest.Create(URI) as HttpWebRequest;
var policy = new HttpRequestCachePolicy(HttpRequestCacheLevel.CacheIfAvailable);
HttpWebRequest.DefaultCachePolicy = policy;
webRequest.CachePolicy = policy;
webRequest.Accept = "text/xml";
webRequest.Method = "POST";
webRequest.ContentType = "text/xml;charset=\"UTF-8\"";
webRequest.Headers.Add("SOAPAction", string.Format("\"{0}#{1}\"", Service, Method));
byte[] requestBytes = Encoding.UTF8.GetBytes(soapRequestDocument.OuterXml);
webRequest.ContentLength = requestBytes.Length;
Stream requestStream = webRequest.GetRequestStream();
requestStream.Write(requestBytes, 0, requestBytes.Length);
requestStream.Flush();
requestStream.Close();
// Process the response
WebResponse webResponse = webRequest.GetResponse();
Stream responseStream = webResponse.GetResponseStream();
StreamReader responseStreamReader = new StreamReader(responseStream);
// Create SOAP response document
XmlDocument soapResponseDocument = new XmlDocument();
soapResponseDocument.Load(responseStreamReader);
responseStreamReader.Close();
//close
responseStream.Close();
return GetResponseDocument(soapResponseDocument);
}
however, none of the requests are being cached, do I need to use it differently?
Related
How do I make the second request within that same connection?
HttpWebRequest request = (HttpWebRequest)WebRequest.Create("String.url");
WebResponse response = request.GetResponse();
Stream stream = response.GetResponseStream();
StreamReader reader = new StreamReader(stream);
String result = reader.ReadToEnd();
stream.Dispose();
reader.Dispose();
HTTP web request makes a persistent connection..... u can use both "GET" or"POST"
you can increase a connection how much u want(eg 3 to 20 or 50 ...etc)
string webpageContent = "";
byte[] byteArray = Encoding.UTF8.GetBytes("value");
HttpWebRequest webRequest (HttpWebRequest)WebRequest.Create(URL);
webRequest.Method = "POST";
webRequest.KeepAlive = true;
webRequest.Timeout = 120000;
System.Net.ServicePointManager.DefaultConnectionLimit = 3;
webRequest.ContentType = "application/x-www-form-urlencoded";
webRequest.ContentLength = byteArray.Length;
using (Stream webpageStream = webRequest.GetRequestStream())
{
webpageStream.Write(byteArray, 0, byteArray.Length);
}
using (HttpWebResponse webResponse = (HttpWebResponse)webRequest.GetResponse())
{
using (StreamReader reader = new StreamReader(webResponse.GetResponseStream()))
{
webpageContent = reader.ReadToEnd();
}
}
The KeepAlive property on HttpWebRequest is used to persist connections. It defaults to true.
Here's the doc with more details:
https://msdn.microsoft.com/en-us/library/system.net.httpwebrequest.keepalive(v=vs.110).aspx
I am trying to call API from windows forms its going in timeout. but its working fine from POSTMAN app.
I am using below code for calling web API from windows app.
public string ReadXMLResponse(string strrequestxml, string strTallyServer1)
{
string URL = strTallyServer1;
HttpWebRequest myHttpWebRequest = (HttpWebRequest)WebRequest.Create(URL);
myHttpWebRequest.Accept = "application/xml";
myHttpWebRequest.ContentType = "application/xml";
myHttpWebRequest.Timeout = 60000;
string method = "POST";
myHttpWebRequest.Method = method;
if (method == "POST")
{
using (var streamWriter = new StreamWriter(myHttpWebRequest.GetRequestStream()))
{
streamWriter.Write(strrequestxml);
streamWriter.Flush();
}
}
HttpWebResponse myHttpWebResponse = (HttpWebResponse)myHttpWebRequest.GetResponse();
using (var streamReader = new StreamReader(myHttpWebResponse.GetResponseStream()))
{
var streamRead = streamReader.ReadToEnd().Trim();
return streamRead;
}
return "";
}
I had the same code and the same problem. It was driving me crazy till I found something on one of Microsoft blogs. Tried to google the original page but I couldn't find it.
WebRequest request = WebRequest.Create("URL");
request.Method = "POST";
var postData = string.Format(dataFormnat, Uri.EscapeDataString(data.Serialize()));
byte[] byteArray = Encoding.UTF8.GetBytes(postData);
request.ContentType = "application/x-www-form-urlencoded";
request.ContentLength = byteArray.Length;
Stream dataStream = request.GetRequestStream();
dataStream.Write(byteArray, 0, byteArray.Length);
dataStream.Close();
WebResponse response = request.GetResponse();
dataStream = response.GetResponseStream();
StreamReader reader = new StreamReader(dataStream);
string responseFromServer = reader.ReadToEnd();
reader.Close();
dataStream.Close();
response.Close();
I try to post an XML file to the url and get the response back. I have this code to post. I am not really sure how to check if it is posting correctly and how to get the response.
WebRequest req = null;
WebResponse rsp = null;
// try
// {
string fileName = #"C:\ApplicantApproved.xml";
string uri = "http://stage.test.com/partners/wp/ajax/consumeXML.php";
req = WebRequest.Create(uri);
req.Method = "POST"; // Post method
req.ContentType = "text/xml; encoding='utf-8'";
// Wrap the request stream with a text-based writer
StreamWriter writer = new StreamWriter(req.GetRequestStream());
// Write the XML text into the stream
writer.WriteLine(this.GetTextFromXMLFile(fileName));
writer.Close();
// Send the data to the webserver
rsp = req.GetResponse();
I think I should have response in rsp but I am not seeing anything usufull on it.
Please try following.
WebRequest req = null;
string fileName = #"C:\ApplicantApproved.xml";
string uri = "http://stage.test.com/partners/wp/ajax/consumeXML.php";
req = WebRequest.Create(uri);
req.Method = "POST"; // Post method
req.ContentType = "text/xml; encoding='utf-8'";
// Write the XML text into the stream
byte[] byteArray = Encoding.UTF8.GetBytes(this.GetTextFromXMLFile(fileName));
// Set the ContentLength property of the WebRequest.
req.ContentLength = byteArray.Length;
// Get the request stream.
Stream dataStream = req.GetRequestStream();
// Write the data to the request stream.
dataStream.Write(byteArray, 0, byteArray.Length);
// Close the Stream object.
dataStream.Close();
WebResponse response = req.GetResponse();
// Display the status.
Console.WriteLine(((HttpWebResponse)response).StatusDescription);
// Get the stream containing content returned by the server.
dataStream = response.GetResponseStream();
// Open the stream using a StreamReader for easy access.
StreamReader reader = new StreamReader(dataStream);
// Read the content.
string responseFromServer = reader.ReadToEnd();
// Display the content.
Console.WriteLine(responseFromServer);
// Clean up the streams.
reader.Close();
dataStream.Close();
response.Close();
try
req.ContentType = "application/xml";
I am currently in the process of automating a web interface for administrating users of an FTP.
I am trying to do this with HttpWebRequest, i have one call that logs me on the site and the second call is supose to add a new user for the FTP access.
I have tried my two urls in the browser and they work, they end up creating a user.
string login = "https://www.ftpsite.net/./panel/index.php?txvUsername=myaccount&txvPassword=myPassword&submitButton=Login";
this gets me logged in when i enter it in the browser address bar.
the second call to create a user is as follows.
string createUser = "https://www.ftpSite.net/panel/ftpsites/updatelogin?login_id=&login=toto123&realname=realnametoto&homedir=root&passwd=superpassword11&expdate=01-01-2100&neverExpire=on"a_value=0"a_unit=GB&group_id=0&status=on&ftp=on&filelist=on&ftp_download=on&http=on&web_filelist=on&web_download=on&email=";
This creates a user when i enter it in the browser's address bar if it follows the one that logs us in.
My problem is that i am trying to do this using HttpWebRequest and without success. I can get myself logged in but when i try to create the user it seems to return a "bad" error code saying i have created too many users already which isnt the case since i can create more after that call. Here is the code i use with HtttpRequest
_datCookie = new CookieContainer();
HttpWebRequest httpWebRequest = (HttpWebRequest)WebRequest.Create(login);
httpWebRequest.Method = "POST";
httpWebRequest.CookieContainer = _datCookie;
WebResponse response = httpWebRequest.GetResponse();
referer = response.ResponseUri.AbsoluteUri;
Stream requestStream = response.GetResponseStream();
StreamReader streamReader = new StreamReader(requestStream);
_datCookie = httpWebRequest.CookieContainer;
response.Close();
httpWebRequest = (HttpWebRequest)WebRequest.Create(createUser);
httpWebRequest.CookieContainer = _datCookie;
httpWebRequest.Referer = referer;
httpWebRequest.Method = "POST";
response = httpWebRequest.GetResponse();
requestStream = response.GetResponseStream();
streamReader = new StreamReader(requestStream);
webBrowser.DocumentText = streamReader.ReadToEnd();
response.Close();
What i caught and tried to imitate without success here.
Are you sure they should be POST requests? The URLs seem to have all of the fields in the query-string, which suggests they should be GET requests instead.
Based on the Fiddler screen-shot, you need to make a POST request with the fields in the body, not the query-string:
var cookies = new CookieContainer();
// Request 1 : Login
var request = (HttpWebRequest)WebRequest.Create("https://www.ftpsite.net/./panel/index.php");
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.CookieContainer = cookies;
string postData = "txvUsername=myaccount&txvPassword=myPassword&submitButton=Login";
byte[] postBytes = Encoding.Default.GetBytes(postData);
request.ContentLength = postBytes.Length;
using (Stream bod = request.GetRequestStream())
{
body.Write(postBytes, 0, postBytes.Length);
}
WebResponse response = request.GetResponse();
string referer = response.ResponseUri.AbsoluteUri;
// Request 2 : Create user
request = (HttpWebRequest)WebRequest.Create("https://www.ftpSite.net/panel/ftpsites/updatelogin");
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.CookieContainer = cookies;
postData = "login_id=&login=toto123&realname=realnametoto&homedir=root&passwd=superpassword11&expdate=01-01-2100&neverExpire=on"a_value=0"a_unit=GB&group_id=0&status=on&ftp=on&filelist=on&ftp_download=on&http=on&web_filelist=on&web_download=on&email=";
postBytes = Encoding.Default.GetBytes(postData);
request.ContentLength = postBytes.Length;
using (Stream bod = request.GetRequestStream())
{
body.Write(postBytes, 0, postBytes.Length);
}
response = request.GetResponse();
requestStream = response.GetResponseStream();
streamReader = new StreamReader(requestStream);
webBrowser.DocumentText = streamReader.ReadToEnd();
response.Close();
I'm trying to get the userID of a Facebook user, I already have the access_token and I use http request to do it. My simple problem is that : I want the user's id but my program just crash... I use WPF, C# Here is my little call :
var url = string.Format("https://graph.facebook.com/me?access_token=" + token + "&response_type=id");
var req = WebRequest.Create(url);
req.Method = "POST";
req.ContentType = "application/x-www-form-urlencoded";
string postData = "'access_token='" + token;
byte[] byteArray = Encoding.UTF8.GetBytes(postData);
var stream = req.GetRequestStream();
stream.Write(byteArray, 0, byteArray.Length);
stream.Close();
WebResponse response = req.GetResponse();
aTextBox.Text = ((HttpWebResponse)response).StatusDescription;
stream = response.GetResponseStream();
StreamReader reader = new StreamReader(stream);
Thanks!
Don't use Web Browser for this! You may use HttpWebRequest for that kind of things:
string url = "https://graph.facebook.com/me?access_token=" + token + "&response_type=id";
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
HttpWebResponse response = (HttpWebResponse)request.GetResponse ();
Stream receiveStream = response.GetResponseStream ();
StreamReader readStream = new StreamReader(receiveStream, Encoding.UTF8);
string responseData = readStream.ReadToEnd();