HttpRequest req1 = new HttpRequest();
req1.setMethod ('GET');
req1.setHeader ('Authorization', 'Bearer ' + accessToken);
req1.setEndpoint (cs1.getEndpoint());
req1.setTimeout (GS_CustomSettingIntegration.callout_Timeout_in_MilliSeconds());
Http http1 = new Http();
HttpResponse res1 = new HttpResponse();
res1 = http1.send (req1);
if (res1.getStatusCode() != 200 && res1.getStatusCode() != 206)
{
DisplayMessage ='Unable to retrieve system configuration.';
}
When i send HTTP request if i get access token then i will return values to the component. If i get error then i should display the message in lightning component How to display the message in lightning component if the HTTp response is nor 200 or 206