I need to build application arcitecture

I have some front end, where I can provide website address...

And I have a few of API (third services) which gives me some makrs about certain aspects of the website. I need to send requests to the third services and collect their answers to the DB. (From client? or from client to back end controller and from controller to the third services???)

After collecting the data I can get certain part of the data from client.

Please help me to build scheme (architecture) of this project using Spring, Hibernate...