Question

I have a json URl like “https://landfill.bugzilla.org/bugzilla-tip/jsonrpc.cgi?method=Product.get&params=%5B{“ids”:”4″}]”

I want to pass this as URL in c# program. below is the code snippet. How can i pass the arguments like ids as above?

try
{
    string url="https://landfill.bugzilla.org/bugzilla-tip/jsonrpc.cgi?method=Product.get";
    string ret = string.Empty;
    StreamWriter requestWriter;
    var webRequest = System.Net.WebRequest.Create(url) as HttpWebRequest;
    if (webRequest != null)
    {
        webRequest.Method = "GET";
        webRequest.ServicePoint.Expect100Continue = false;
        webRequest.Timeout = 20000;

        webRequest.ContentType = "application/json";        
    }
    HttpWebResponse resp = (HttpWebResponse)webRequest.GetResponse();
    Stream resStream = resp.GetResponseStream();
    StreamReader reader = new StreamReader(resStream);
    ret = reader.ReadToEnd();
    return ret;
}
catch (WebException exception)
{
    string responseText;
    using (var reader = new StreamReader(exception.Response.GetResponseStream()))
    {
        responseText = reader.ReadToEnd();
    }
    return responseText;
}
}

Need to pass “ids” as argument, please help.

Answer 1

If you know how Url looks like and sure that argument are Url-safe (like int) you can simply use String.Format to construct it:

 int id = 4;
 var url = String.Format("https://landfill.bugzilla.org/bugzilla-tip/"
       + "jsonrpc.cgi?method=Product.get&params=[{{\"ids\":\"{0}\"}}]", id);

Note that this is not good way of contructing Url – it only would be ok for one-time-use code and when you know that inserted parameters are Url-safe. Proper approach would be to use Uri class or approaches from How to build a query string for a URL in C#?

If you need ot construct more complex parameter (like array of IDs) – use jbehren suggestion for JSON serializtion.