INAPP Purchases

Hello Everyone,

So I've been trying to fetch (GET) in-app purchases from Apple Store Connect APIs, however I'm not sure how and what kind of account I should create. I need to dynamically generate a JWT (token) that stays 20 minutes with the following parameters (issuer id, api key etc..) and fetch the target data, I can do that on Postman as bearer token, but as I'm new to snapLogic, I don't know how to do to automate this process so I can run it on daily basis 

Thank you for your help!