How to inject "application_id" in some test endpoint "/v1/random-session/{id}/submit"?

I am reading endpoints from xls file for testPlan creation and i have to do series of test on various endpoints to check the functionality. But the application_id is generated only after the first request and then it is available by the static util class. How should i structure end points in my xls which have the application_id generated at the session start? What is the best java API that i can use to inject application_id in place of {id} in the end-point?

Thanks in advance for your help!