C# build a websevice method that accepts POST methods like HttpWebRequest method

Question

i need a web service that accepts POST methods. An server that is accessing me is using POST method. It sends me an xml and i should response with some xml.

The other

Answer 1

HTTP GET and HTTP POST may be enabled in the configuration. There exists a file called webconfig file in the root where in you have to add the following setting:

ie inside the system.web tag.

Now in the web-service if you are intending to send an XML back you could design a struct of your wish which resembles the anticipated XML. eg: To get an XML of following type:

 
      
        
        200
    

you have to return an object of following struct from the web-service:

public struct Quote
{
    public int price;
    public string object;
    public Quote(int pr, string obj)
    {
        price = pr;
        object = obj
    }
}

Now this can be received as response as string and then be parsed as you like.

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Edit I

The following is a HelloWorld WebMethod

[WebMethod]
    public string HelloWorld() {  
      return "HelloWorld";
    }

[in case of struct change the return type to corresponding struct type]

The following is a function where you can POST to a URL and also send a xml file to the webservice[Use according to your need]:

public static XmlDocument PostXMLTransaction(string URL, XmlDocument XMLDoc)
    {


        //Declare XMLResponse document
        XmlDocument XMLResponse = null;

        //Declare an HTTP-specific implementation of the WebRequest class.
        HttpWebRequest objHttpWebRequest;

        //Declare an HTTP-specific implementation of the WebResponse class
        HttpWebResponse objHttpWebResponse = null;

        //Declare a generic view of a sequence of bytes
        Stream objRequestStream = null;
        Stream objResponseStream = null;

        //Declare XMLReader
        XmlTextReader objXMLReader;

        //Creates an HttpWebRequest for the specified URL.
        objHttpWebRequest = (HttpWebRequest)WebRequest.Create(URL);

        try
        {
            //---------- Start HttpRequest

            //Set HttpWebRequest properties
            byte[] bytes;
            bytes = System.Text.Encoding.ASCII.GetBytes(XMLDoc.InnerXml);
            objHttpWebRequest.Method = "POST";
            objHttpWebRequest.ContentLength = bytes.Length;
            objHttpWebRequest.ContentType = "text/xml; encoding='utf-8'";

            //Get Stream object
            objRequestStream = objHttpWebRequest.GetRequestStream();

            //Writes a sequence of bytes to the current stream
            objRequestStream.Write(bytes, 0, bytes.Length);

            //Close stream
            objRequestStream.Close();

            //---------- End HttpRequest

            //Sends the HttpWebRequest, and waits for a response.
            objHttpWebResponse = (HttpWebResponse)objHttpWebRequest.GetResponse();

            //---------- Start HttpResponse
            if (objHttpWebResponse.StatusCode == HttpStatusCode.OK)
            {
                //Get response stream
                objResponseStream = objHttpWebResponse.GetResponseStream();

                //Load response stream into XMLReader
                objXMLReader = new XmlTextReader(objResponseStream);

                //Declare XMLDocument
                XmlDocument xmldoc = new XmlDocument();
                xmldoc.Load(objXMLReader);

                //Set XMLResponse object returned from XMLReader
                XMLResponse = xmldoc;

                //Close XMLReader
                objXMLReader.Close();
            }

            //Close HttpWebResponse
            objHttpWebResponse.Close();
        }
        catch (WebException we)
        {
            //TODO: Add custom exception handling
            throw new Exception(we.Message);
        }
        catch (Exception ex)
        {
            throw new Exception(ex.Message);
        }
        finally
        {
            //Close connections
            objRequestStream.Close();
            objResponseStream.Close();
            objHttpWebResponse.Close();

            //Release objects
            objXMLReader = null;
            objRequestStream = null;
            objResponseStream = null;
            objHttpWebResponse = null;
            objHttpWebRequest = null;
        }
        //Return
        return XMLResponse;
    }

And the call would be like :

 XmlDocument XMLdoc = new XmlDocument();
 XMLdoc.Load("");
 XmlDocument response = PostXMLTransaction("", XMLdoc);
 string source = response.OuterXml;

[If this was helpful or need more help please let me know]