Drahak\Restful\Http\ApiRequestFactory::getPreferredMethod PHP Method

    protected function getPreferredMethod(IRequest $request)
    {
        $method = $request->getMethod();
        $isPost = $method === IRequest::POST;
        $header = $request->getHeader(self::OVERRIDE_HEADER);
        $param = $request->getQuery(self::OVERRIDE_PARAM);
        if ($header && $isPost) {
            return $header;
        }
        if ($param && $isPost) {
            return $param;
        }
        return $request->getMethod();
    }