Converting a cURL command to .NET

Question

Hi have the following cURL command that I would like to convert to VB.NET or C#.

curl https://api.box.com/2.0/users \-H "Authorization: Bearer ACCESS_TOKEN" \ -d '{"login": "[email protected]", "name": "Ned Stark"}' \ -X POST

I've tried the following in VB.NET:

Dim url As String = "https://api.box.com/2.0/users"
Dim wrq = CType(Net.WebRequest.Create(url), HttpWebRequest)
Dim postString As String = "[email protected]&name=Ned Stark"

wrq.Headers.Add("Authorization: Bearer " & o2ses.AccessToken)
wrq.Method = "POST"
wrq.ContentType = "application/x-www-form-urlencoded"
wrq.ContentLength = postString.Length

Dim wrqWriter As New StreamWriter(wrq.GetRequestStream())
wrqWriter.Write(postString)
wrqWriter.Close()

Dim responseReader As New StreamReader(wrq.GetResponse().GetResponseStream())
Dim responseData As String = responseReader.ReadToEnd()

I am a newb to cURL and to using HttpWebRequest in .NET, but have converted cURL commands to .NET before (thanks to this site :)), but none with the -d option in them, so I'm kind of lost. It keeps returning error 400 (bad request) when the line below is executed.

Dim responseReader As New StreamReader(wrq.GetResponse().GetResponseStream())

I think it has to do with what data I am sending (i.e. it's not getting the proper 'login' and 'name' parameters it needs).

Any help is appreciated. I can try to provide more information if needed. As mentioned, I'm a newb to this, so I'll try my best.

Thanks!

Your post string should be url encoded (see HttpUtility.UrlEncode() or an example here stackoverflow.com/a/14703032/99256) for starters. — MartyIX
– MartyIX, Commented Nov 21, 2013 at 23:24
Thanks for the response and link. I modified the code to define 'poststring' as stringbuilder and appended the urlencoded data but I still get a 'bad request (400)' from the web service. — user1146024
– user1146024, Commented Nov 22, 2013 at 14:11

MartyIX · Accepted Answer · 2013-11-21 23:30:08Z

0

I do not know vb.net but I think that the authorization header should look like this:

wrq.Headers.Add(HttpRequestHeader.Authorization, "Bearer " & o2ses.AccessToken);

answered Nov 21, 2013 at 23:30

MartyIX

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2 Comments

user1146024 Over a year ago

Thanks for the response. I've changed the line recommended but still the same results.

MartyIX Over a year ago

I would recommend then to install Fiddler (fiddler2.com/home) and have a look at requests from your application ( stackoverflow.com/questions/935181/…). This way you can compare headers from your .NET application and headers from curl.

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