I found trigger procedures and functions of APOC but I am confused about it's usage.
Maybe @david.allen's blog post would be useful for seeing how you can use APOC triggers?
The article that Mark linked does have a concrete example about how to use APOC triggers. I'd be curious to know if that helps at all.
Happy to answer other questions though. Maybe the place to start is, what do you want to do? What does your data model look like?
Thank you. I will ask you if I have any queries.