Hi,      I feel like that direct call rule and custom event does the same thing. Can anyone explain the main key difference?

I have written a eddl . How can I trigger rule using only with Core extensions. Or should I need to  write custom code (for example: If the  event name is  "pageview",  then should I need to compare the  value for the event key of each object inside dataLayer and when it  matches with event values a...