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();
Related
I am trying to login this site: http://svp.correios.com.br/core/seguranca/entrar.php
But in the end, he still does not login, I am opening the page, capturing the session and trying to login, why in the end, dont work login?
look my code:
string url = "http://svp.correios.com.br/core/seguranca/entrar.php";
//request page to login
HttpWebRequest request01 = (HttpWebRequest)WebRequest.Create(url);
request01.CookieContainer = _cookies;
request01.ContentType = "application/x-www-form-urlencoded";
//load page
HttpWebResponse return01 = (HttpWebResponse)request01.GetResponse();
Stream dataStream = return01.GetResponseStream();
StreamReader reader = new StreamReader(dataStream, Encoding.GetEncoding("ISO-8859-1"));
//get section
string responseFromServer = reader.ReadToEnd();
String[] rastreamentoCompleto = Regex.Split(responseFromServer, "<section id=\"geral\">\n\t<form id=\"fm1\" action=\"");
String[] retiraFim = Regex.Split(rastreamentoCompleto[1], "\" method=\"post\">\n <div id");
string keySection = retiraFim[0];
//try login
HttpWebRequest request02 = (HttpWebRequest)WebRequest.Create("https://apps.correios.com.br" + keySection);
request02.CookieContainer = _cookies;
request02.Method = "POST";
string postData = "username="+ user + "&password="+ password;
byte[] byteArray = Encoding.UTF8.GetBytes(postData);
request02.ContentType = "application/x-www-form-urlencoded";
request02.ContentLength = byteArray.Length;
dataStream = request02.GetRequestStream();
dataStream.Write(byteArray, 0, byteArray.Length);
dataStream.Close();
//check if Logged
HttpWebResponse return02 = (HttpWebResponse)request02.GetResponse();
dataStream = return02.GetResponseStream();
reader = new StreamReader(dataStream, Encoding.GetEncoding("ISO-8859-1"));
responseFromServer = reader.ReadToEnd();
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 am trying to write a YouTube app for windows phone, and I stumbled upon some problems on the authentication side. For some reason the following code is not working properly,
string url = "https://accounts.google.com/o/oauth2/token?";
string postData = "code=" + str + "&client_id=*********.apps.googleusercontent.com&client_secret=*******&grant_type=authorization_code";
HttpWebRequest httpWReq = (HttpWebRequest)WebRequest.Create(url);
byte[] data = Encoding.Unicode.GetBytes(postData);
httpWReq.Method = "POST";
httpWReq.ContentType = "application/x-www-form-urlencoded";
using (Stream stream =await httpWReq.GetRequestStreamAsync())
stream.Write(data, 0, data.Length);
HttpWebResponse response =(HttpWebResponse)(await httpWReq.GetResponseAsync());
string responseString = new StreamReader(response.GetResponseStream()).ReadToEnd();
I am fairly new to HttpWebRequest so probably I missed something, although I am getting a response:
Bad Request
To be specific it says that grant_type is missing although I am pretty sure that it is not, I did everything according to the documentation. What am I doing wrong ?
This will probably fix it
parameters.Append("code=" + str);
parameters.Append("&client_id=*****.apps.googleusercontent.com");
parameters.Append("&client_secret=*****");
parameters.Append("&redirect_uri=urn:ietf:wg:oauth:2.0:oob:auto");
parameters.Append("&grant_type=authorization_code");
string p_params = parameters.ToString();
byte[] p_data_params = Encoding.UTF8.GetBytes(p_params);
HttpWebRequest request = (HttpWebRequest)WebRequest.Create("https://accounts.google.com/o/oauth2/token");
request.Accept = "application/json";
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
Stream dataStream = await request.GetRequestStreamAsync();
dataStream.Write(p_data_params, 0, p_data_params.Length);
dataStream.Dispose();
HttpWebResponse response = (HttpWebResponse)await request.GetResponseAsync();
Stream responseStream = response.GetResponseStream();
StreamReader readStream = new StreamReader(responseStream, Encoding.UTF8);
string result = readStream.ReadToEnd();
Works fine for me.
I'm trying to sign in to a website. It should be done by a POST request. But i need to store the cookie somehow.
My actual code:
public void botLogin(string userName, string passWord)
{
ASCIIEncoding encoding = new ASCIIEncoding();
string post_data = "username=" + userName + "&password=" + passWord;
byte[] data = encoding.GetBytes(post_data);
var requestUri = "http://registration.zwinky.com/registration/loginAjax.jhtml";
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(requestUri);
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.ContentLength = data.Length;
var sharedCookies = new CookieContainer();
request.CookieContainer = sharedCookies;
Stream stream = request.GetRequestStream();
stream.Write(data, 0, data.Length);
stream.Close();
WebResponse response = request.GetResponse();
stream = response.GetResponseStream();
StreamReader sr = new StreamReader(stream);
MessageBox.Show(sr.ReadToEnd());
sr.Close();
stream.Close();
}
How would i store the cookie now to use it for other requests?
First of all, cast the created WebRequest to HttpWebRequest. This will give you access to more HTTP-specific properties and methods.
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(requestUri);
Define a CookieContainer object at the application level and set that for each created request.
request.CookieContainer = sharedCookies;
I'm pretty sure, the HttpWebRequest object will store the cookies after the download so that the next request can use them. If that still doesn't work, examine the HttpWebResponse object for cookies (again, don't forget to cast the response object to that).
/*WebClient client = new WebClient();
client.Headers.Add("Content-Type", "application/x-www-form-urlencoded");
string parameters = "code=4/f2PwqbN1Z5FpEEcT0scRH20B6d-F.ouqZIhzZqUYbEnp6UAPFm0EuJPwSigI&" +
"client_id=162438320977-ml14ajmuutlrr71maal933ma5cjolc8l.apps.googleusercontent.com&" +
"&client_secret=1IJxvSnmxcx-i2l_YGgYOD0i&redirect_uri=http://localhost&grant_type=authorization_code";
byte[] data = Encoding.UTF8.GetBytes(parameters);
var test = client.UploadData("http://accounts.google.com/o/oauth2/token","POST", data);
string result = data.ToString();*/
StringBuilder parameters = new StringBuilder();
parameters.Append("code=4/IoAJMoYxUqk7lkH_WbSr3lk4URf1.0t7Qx7qZE5QeEnp6UAPFm0G0EvMSigI");
parameters.Append("&client_id=162438320977-ml14ajmuutlrr71maal933ma5cjolc8l.apps.googleusercontent.com");
parameters.Append("&client_secret=1IJxvSnmxcx-i2l_YGgYOD0i");
parameters.Append("&redirect_uri=urn:ietf:wg:oauth:2.0:oob");
parameters.Append("&grant_type=authorization_code");
string p_params = parameters.ToString();
byte[] p_data_params = Encoding.UTF8.GetBytes(p_params);
HttpWebRequest request = (HttpWebRequest) WebRequest.Create("https://accounts.google.com/o/oauth2/token");
request.Accept = "application/json";
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.ContentLength = p_data_params.Length;
Stream dataStream = request.GetRequestStream();
dataStream.Write(p_data_params, 0, p_data_params.Length);
dataStream.Close();
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
Stream responseStream = response.GetResponseStream();
StreamReader readStream = new StreamReader(responseStream, Encoding.UTF8);
string result = readStream.ReadToEnd();
The only approach that seems to work for me is using HttpWebRequest. I found the answer here: .Net Google OAuth token WebRequest Bad Request Protocol Error If anyone knows of a way to get the Web Client implementation working please let me know! Thanks.