11

I have spent ages trying various different ways to convert this curl to c#. Could someone please help. I am trying to do a http post and keep getting error 500. here is what I want to convert:

curl --user username:password -X POST -d "browser=Win7x64-C1|Chrome32|1024x768&url=http://www.google.com" http://crossbrowsertesting.com/api/v3/livetests/

and this is what I have so far:

    HttpWebRequest request = (HttpWebRequest)WebRequest.Create(baseurl);
request.Method = "POST";
request.Accept = "application/json";
request.Credentials = new NetworkCredential(username, password);

var response = request.GetResponse();
string text;

using (var sr = new StreamReader(response.GetResponseStream()))
{
    text = sr.ReadToEnd();
    values.Add(text);
}

Tried this method too but it didn't work:

List<string> data = new List<string>();
        data.Add("browser=Win7x64-C1|Chrome20|1024x768");
        data.Add("url=URL");
        data.Add("format=json");
        data.Add("callback=doit");
        var request = WebRequest.Create("CrossBrowserTestingURL");
        request.Method = "POST";
        request.ContentType = "application/x-www-form-urlencoded";
        request.Credentials = new NetworkCredential(username, password);
        using (var writer = new StreamWriter(request.GetRequestStream()))
        {
            writer.Write("data=" + data);
        }

        var response = request.GetResponse();

        string text;

        using (var sr = new StreamReader(response.GetResponseStream()))
        {
            text = sr.ReadToEnd();
            values.Add(text);
        }
Tommy Cawley
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  • Don't forget to write the data into request stream.. – L.B Aug 14 '14 at 11:32
  • could you please post a sample of how to do so. This is new to me. Thanks – Tommy Cawley Aug 14 '14 at 13:12
  • Is this a duplicate of [.net - Making a cURL call in C#](http://stackoverflow.com/questions/7929013/making-a-curl-call-in-c-sharp) or [c# - WebRequest Equivalent to CURL command](http://stackoverflow.com/questions/21255725/webrequest-equivalent-to-curl-command#)? – Sam Hobbs Jan 03 '17 at 06:18

2 Answers2

18

I modified the first one to write data to the request stream as per http://msdn.microsoft.com/en-us/library/debx8sh9(v=vs.110).aspx, does this work: 

HttpWebRequest request = (HttpWebRequest)WebRequest.Create(baseurl);
request.Method = "POST";
request.Accept = "application/json";
request.Credentials = new NetworkCredential(username, password);
request.UserAgent = "curl/7.37.0";
request.ContentType = "application/x-www-form-urlencoded";

using (var streamWriter = new StreamWriter(request.GetRequestStream()))
{
    string data = "browser=Win7x64-C1|Chrome32|1024x768&url=http://www.google.com";

    streamWriter.Write(data);
}

var response = request.GetResponse();
string text;

using (var sr = new StreamReader(response.GetResponseStream()))
{
    text = sr.ReadToEnd();
    values.Add(text);
}
crackalak
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  • unfortunately that did not work. Still getting error 500 from the server. The curl works but the c# method doesn't. Any ideas? – Tommy Cawley Aug 18 '14 at 08:31
  • I've changed the answer to use JSON as per the API docs, can you try again? – crackalak Aug 18 '14 at 10:30
  • still returning error 500 internal server error unfortunately :( – Tommy Cawley Aug 18 '14 at 15:07
  • I created an account to debug, the request data does have to be in form format and the **UserAgent** needs to be set. I used the cURL user agent for sake of testing. I guess the API is still in beta after all! – crackalak Aug 18 '14 at 19:15
  • You will need to add a NameValueCollection right after your request.ContentType line. Like the following:
    NameValueCollection collection = new NameValueCollection()
    collection.Add("username",value);
    collection.Add("password", value);
    request.Headers.Add(collection);     – Rudy Hinojosa Apr 02 '15 at 21:52
13

Just implemented an experimental ASP.NET Core app that turns curl commands into C# code using Roslyn

Give it a try, please:
https://curl.olsh.me/

olsh
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