HTTP POST with JSON object returned c#

Question

I am trying to create a HTTP Post that returns a JSON object with 2 attributes.

Details are below:

HTTP POST to http://text-processing.com/api/sentiment/ with form encoded data which contains a string. A JSON object response with 2 attributes is retuned; lable and negative.

I am tying to do this in c#, which is where I am struggling.

Thank you

Not a lot I have been reading up on it but do not know where to start, I know not the best way to do this, but I didnt know what else to do, I am unsure how even to do a HTTP Post request with a string value. — user101010101
– user101010101, Commented May 27, 2011 at 15:12

Bala R · Accepted Answer · 2011-05-27 15:21:22Z

7

You can try using a WebClient like this

WebClient webclient = new WebClient();
NameValueCollection postValues = new NameValueCollection();
postValues.Add("foo", "fooValue");
postValues.Add("bar", "barValue");
byte[] responseArray = webclient.UploadValues(*url*, postValues);
string returnValue = Encoding.ASCII.GetString(responseArray);

MSDN page also has an example.

edited May 27, 2011 at 15:21

answered May 27, 2011 at 15:00

Bala R

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2 Comments

user101010101 Over a year ago

I tired this but how do I collect the returned Json value?

Bala R Over a year ago

@user the MSDN example is doing that. I'll edit my answer to cover that.

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