I need a step by step tutorial or (documents) teaching restassured API test framework using selenium and java

I need a step by step tutorial teaching rest_assured API test framework using selenium and java. I am kind of new to rest-assured API test automation framework and I wanted to learn the advance level of API testing using automation. I understand that there are tons of tutorials available online but they all are only on basic setup, and not fully explained. Please help, I will appreciate your feedback.