HTTP POST Request

HTTP POST Request

I need to HTTP POST to a webpage, and store server's output into a variable.

here is the code. also i have copied the code from forum. But its not working. Any one have a idea how to post the data via scripting

var response = make_HTTP_post('http://10.1.8.66',  ':8085/activiti-rest/service/runtime/process-instances',  { 'processDefinitionKey': 'photoshopTest',  'variables':[]  } ); 

alert(response);    

function make_HTTP_post(domain, path, post_data) { 

    var data_string = ''; 

    for ( var key in post_data ) { 

        if ( post_data.hasOwnProperty(key) ) { 

            data_string += '&' + encodeURIComponent(key) 

             + '=' + encodeURIComponent(post_data[key]); 

        } 

    } 

    data_string = data_string.substring(1); // discard first '&' 

    var conn = new Socket; 

    conn.open(domain + ':8085'); 

    conn.write('POST ' + path + " HTTP/1.1\r\n"); 

    conn.write('Host: ' + domain + "\r\n"); 

    conn.write('Content-Length: ' + data_string.length + "\r\n"); 

    conn.write("Content-Type: application/json\r\n"); 

    conn.write("\r\n");   

    conn.write(data_string);

    alert (data_string)

    var reply = '';

    reply = conn.read(999999);

    conn.close();

    reply = reply.split("\n\n");

    reply.splice(0,1); // discard server headers

    return reply.join("\n\n"); 

}