/** * @param $operationName operation name * @param ParamInterface $param Param to be serialized in the request * @param string $type * @return string $bodyString */ public function apiNgRequest($operationName, ParamInterface $param, $type = "betting") { $requestParameters = array_merge($this->getDefaultAuthHeaderArray(), $this->builtJsonRpcArrayParameters($operationName, $param, $type), array("type" => $type)); $response = $this->betfairGuzzleClient->apiNgRequest($requestParameters); return $response->getBody(); }