Develop Reference

How Could I Use Contentlength, GetResponse, or GetRequestStream In A UWP App (C#)

I know C# but am new to UWP... I have noticed that some HttpWebRequest definitions are non existent in UWP. How would I be able to use ContentLength, GetRequestStream, and GetResponse in a UWP application? Thanks. Here is my code if needed:
HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(SelectedItem + url);
webRequest.Headers.Add("SOAPACTION", SOAPACTION);
webRequest.Method = "POST";
webRequest.ContinueTimeout = 2000;
webRequest.ContentType = "text/xml";
string postData = xmlData;
byte[] byteArray = Encoding.UTF8.GetBytes(postData);
webRequest.ContentLength = byteArray.Length;
Stream dataStream = webRequest.GetRequestStream();
dataStream.Write(byteArray, 0, byteArray.Length);
dataStream.Dispose();
WebResponse response = webRequest.GetResponse();
dataStream = response.GetResponseStream();
StreamReader reader = new StreamReader(dataStream);
string responseFromServer = reader.ReadToEnd();
reader.Dispose();
response.Dispose();
return responseFromServer;

Custom header not included in the http post request

Box.com's Enterprise User Provisioning API requires OAUTH2 token in the header of the request ("Authorization: Bearer faKE_toKEN_1234"). I've ran the code below against http://www.xhaus.com/headers, http://httpbin.org/post and http://www.cs.tut.fi/cgi-bin/run/~jkorpela/echo.cgi and observed packets with Microsoft Network Monitor and as far as I know my request header does not include the "Authorization" value I wish to include there.
Is the code below missing something (code or a point)?
HttpWebRequest request = (HttpWebRequest) WebRequest.Create(API_URL);
request.Method = "POST";
request.ServicePoint.Expect100Continue = false;
request.ContentType = "application/x-www-form-urlencoded";
request.Timeout=10000;
string postData = Parameters;
ASCIIEncoding encoding = new ASCIIEncoding ();
byte[] byte1 = encoding.GetBytes (postData);
request.ContentLength = byte1.Length;
Stream reqStream = request.GetRequestStream();
reqStream.Write(byte1, 0, byte1.Length);
reqStream.Close();
//This is puzzling me, why can't I see this header anywere
//when debugging with packet monitor etc?
request.Headers.Add("Authorization: Bearer " + access_token);
HttpWebResponse response = (HttpWebResponse) request.GetResponse();
Stream dataStream = response.GetResponseStream ();
StreamReader reader = new StreamReader (dataStream);
string txtResponse = reader.ReadToEnd ();
return txtResponse;

I think you need to set the header before you write the postData and close the request stream. This appeared to work for me:
static void Main(string[] args)
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://www.xhaus.com/headers");
request.Method = "POST";
request.ServicePoint.Expect100Continue = false;
request.ContentType = "application/x-www-form-urlencoded";
request.Timeout = 10000;
request.Headers.Add("Authorization: Bearer_faKE_toKEN_1234");
string postData = "postData";
ASCIIEncoding encoding = new ASCIIEncoding();
byte[] byte1 = encoding.GetBytes(postData);
request.ContentLength = byte1.Length;
Stream reqStream = request.GetRequestStream();
reqStream.Write(byte1, 0, byte1.Length);
reqStream.Close();
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
Stream dataStream = response.GetResponseStream();
StreamReader reader = new StreamReader(dataStream);
string txtResponse = reader.ReadToEnd();
Console.WriteLine(txtResponse);
Console.ReadKey();
}

Get html source from internet meet some issue

I want to fetch a web page to analyze stock information. I use the following sample code to get html data using c#. While it compiles, running it always ends in an error.
The following is my sample code:
string urlAddress = "http://pchome.syspower.com.tw/stock/sto0/ock2/sid2404.html";
var request = (HttpWebRequest)WebRequest.Create(urlAddress);
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.ContentLength = 1414;
var requestStream = request.GetRequestStream();
requestStream.Write(Encoding.UTF8.GetBytes("is_check=1"), 0, 10);
requestStream.Close();
var response = (HttpWebResponse)request.GetResponse();
var sr = new StreamReader(response.GetResponseStream());
string rawData = sr.ReadToEnd();
sr.Close();
response.Close();
Does anyone know how to solve this issue?

The errors were mostly related to the order of your code and the closing of Stream objects your were still going to use.
Also I recommend to use using where possible to correctly dispose objects.
Use this code:
string rawData;
byte[] bytes = Encoding.UTF8.GetBytes("is_check=1");
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(urlAddress);
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.ContentLength = bytes.Length;
using (Stream requestStream = request.GetRequestStream())
{
requestStream.Write(bytes, 0, bytes.Length);
using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
{
using (StreamReader sr = new StreamReader(response.GetResponseStream()))
{
rawData = sr.ReadToEnd();
}
}
}

Unable to consume POST method of OpenShift REST based API

I am trying to create application into OpenShift Red hat environment from my sample code which I have developed in C#.net.
string url =string.Format("https://openshift.redhat.com/broker/rest/domain/{0}/applications", cbDomains.Text);
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
request.Method = "POST";
request.Credentials = new NetworkCredential(USERNAME, PASSWORD);
string postData = "{\"name\": \"myapp\","
+ "\"cartridges\": [{"
+ "\"cartridge\": \"diy-0.1\"}],"
+ "\"scale\": false,"
+ "\"gear_size\": \"small\"}";
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();
when I am executing above code I am getting following error:
The remote server returned an error: (422) Unprocessable Entity.
on this below line:
WebResponse response = request.GetResponse();
Please let me where I am doing wrong. Thanks in advance Jyoti

Send a string from C# app to PHP

I want to send string from my C# app to my PHP page and I tried some different solutions that i found in the internet. One of them is this:
C# code:
string url = "http://localhost:8080/test.php";
string str = "test";
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
req.Method = "POST";
string Data = "message=" + str;
byte[] postBytes = Encoding.ASCII.GetBytes(Data);
req.ContentType = "application/x-www-form-urlencoded";
req.ContentLength = postBytes.Length;
Stream requestStream = req.GetRequestStream();
requestStream.Write(postBytes, 0, postBytes.Length);
requestStream.Close();
HttpWebResponse response = (HttpWebResponse)req.GetResponse();
Stream resStream = response.GetResponseStream();
var sr = new StreamReader(response.GetResponseStream());
string responseText = sr.ReadToEnd();
and PHP code:
foreach($_POST as $pdata)
echo $pdata;
But it's just a blank page. I dont know what the problem is.

I haven't used c# in a long time, but this should be the solution:
string url = "http://localhost:8080/test.php";
string str = "test";
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
req.Method = "POST";
string Data = "message=" + str;
UTF8Encoding utf8 = new UTF8Encoding();
byte[] postBytes = utf8.GetBytes(Data);
req.ContentType = "application/x-www-form-urlencoded";
req.ContentLength = postBytes.Length;
Stream requestStream = req.GetRequestStream();
requestStream.Write(postBytes, 0, postBytes.Length);
requestStream.Close();
HttpWebResponse response = (HttpWebResponse)req.GetResponse();
Stream resStream = response.GetResponseStream();
var sr = new StreamReader(resStream);
string responseText = sr.ReadToEnd();
What I did was change the encoding from ASCII to UTF8. UTF8 is what application/x-www-form-urlencoded expects.
As for your php, I assume you have opening and closing brackets on your foreach method.
Edit:
Okay, well I noticed an error in your c#. You were getting the response stream twice. That might have caused some error, but here is how I would structure my php:
<?php
foreach($_POST as $key => $value){
echo $value . "<br>";
}
?>