Website responding with Error message in HttpWebRequest

Guest User

I have two problems:

First, when I am trying to get data from this website it goes well within browser but when I send request using httpwebrequest in C# it responds with this message. In first attempt it may return data but if the send request again it returns this message.

Second, when I go to page-2 or click next to go to another page it generates numbers (in end) which is not consistent changes everytime I refresh browser. How can I get these numbers? For example: "=1559040099084" like this.

{ "message": "refresh" }

HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(URI);
request.Headers.Add("IfModifiedSince", DateTime.Now.ToString());
request.Method = "GET";
string result = string.Empty;
using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
{
Stream dataStream = response.GetResponseStream();
StreamReader reader = new StreamReader(dataStream);
result = reader.ReadToEnd();
reader.Close();
dataStream.Close();
}
Debug.Write(result);

https://www.rajalacamera.fi/tuotteet/objektiivit

https://www.rajalacamera.fi/alt_api/category/?category_id=29&p=2&product_list_order=position&product_list_dir=asc&_=1559040099084

7 Replies

Know the answer? Post it — somebody with the same question will find it here.

Subbarao A7y ago
Hi

you can try

reader.Close();
0
Guest User7y ago
Hi Subbarao,
I am sorry but still .End does not work. I am getting Error message
"streamreader/HttpWebResponse does not contain a definition for 'End"
0
Subbarao A7y ago
Hi

try this
using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
{
Stream dataStream = response.GetResponseStream();
StreamReader reader = new StreamReader(dataStream);
result = reader.ReadToEnd();
reader.End();
response.End();
}
0
Guest User7y ago
Hi Subbarao,

Many many thanks but reader and datastream does not have .End() method. It shows error.
0
Subbarao A7y ago
Hi

In your code change the reader.Close() to reader.End().
using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
{
Stream dataStream = response.GetResponseStream();
StreamReader reader = new StreamReader(dataStream);
result = reader.ReadToEnd();
reader.End();
dataStream.End();
}
0
Guest User7y ago
Hi,
Thanks for you help.
Can you integrate this into the code above.
Actually, I don't have much knowledge about it.
0
Subbarao A7y ago
Hi

you can use response.end instead of close.

https://www.c-sharpcorner.com/forums/difference-between-responseclose-and-responseend
0