public function setBaseURL($baseURL){
      if(strcasecmp($baseURL, CoreConstants::DEVELOPMENT_SANDBOX) == 0){
         $this->baseURL = CoreConstants::SANDBOX_DEVELOPMENT;
      }else if(strcasecmp($baseURL, CoreConstants::PRODUCTION_QBO) == 0){
         $this->baseURL = CoreConstants::QBO_BASEURL;
      }else{
         $this->baseURL = $baseURL;
      }

    }