How to send an HttpPost message to the Drive service of MRDS

Question

How can I send an HttpPost request to the drive service (I'm using the generic diff drive) to set the distance and the rotate angle to a specific value?

I wrote my own service and it works properly without using HttpPost.

What actually is happening is that I get the object position from vision service and calculate a distance and an angle between robot and the object (which doesn't give me the right value yet but it's not important now) and then send them ( angle and distance) on the rotateAngle and driveDistance of the generic drive service. What I want to do is that sending them by HTTP POST message.

Answer 1

You can use the System.Net.WebRequest class to perform an HTTP post:

string postData = "Put your post data here";
byte[] byteArray = Encoding.UTF8.GetBytes (postData);

WebRequest request = WebRequest.Create("http://www.mysite.com/PostHere");
request.Method = "POST";
request.ContentLength = byteArray.Length;
request.ContentType = "application/x-www-form-urlencoded";

Stream dataStream = request.GetRequestStream ();
dataStream.Write (byteArray, 0, byteArray.Length);
dataStream.Close ();
request.Close();