read the todo and still can’t understand what to do and where to type the code
You need to store the json data into the POJO class PortfolioTrade.java
The example is shown in FAQ of module 1.
Now remember one thing, it doesnt contain single object but an array of objects
Take a look at the functions provided in your portfolioManagerApplication.java, try to understand whats the purpose of each, read about object mapping using jackson, and as @visargdesai, has mentioned that is the task you have to perform.
I think you are having issues with understanding the debugging. Just stick to the instruction in todo of milestone 1 of module 1. Explore the debug session completely which was directed to do in ME section instructinos