How to monitor endpoints with Spring Boot Actuator?

Question

Spring

Hello.
It is necessary to monitor the SpringBoot application on a remote server. For example, such a case:
- monitoring of existing business endpoints for the duration of the request. Let's assume the average query execution is 0.7-1 sec. As soon as this time exceeds 1.2 seconds, it is necessary to notify the admin or developer
. The problem is that I do not understand the concept itself, in order to correctly google and implement it.
Maybe there is some article on my question?