Java REST APIs Implementation

I have the below requirement

2 REST APIs (API-1 and API-2)

API-1 will be exposed outside

API-2 will be called from API-1

The Request to API-1 should contain the request ID (dynamic)
When the request is reached to API-1, wait for 5 secs and pass the request to API-2

in the API-2, wait for 5 sec and print the request to log using log4j