public function post($url, $requestBody = null) {
        $posturl = $this->url . $url;
        return $this->restRequest($posturl, 'POST', $requestBody);
    }
public function post($url, $requestBody = null) {
        $posturl = $this->url . $url;
        return $this->restRequest($posturl, 'POST', $requestBody);
    }
public function post ( $ url , $ requestBody = null ) { $ posturl = $ this -> url . $ url ; return $ this -> restRequest ( $ posturl , 'POST' , $ requestBody ) ; }
Generic Post Request
@param mixed $url
@param mixed $requestBody
@return HTTPClient
Generic Post Request