How should I start

1. check if TaskApplication is starting.
2. run tests by using mvn wrapper to check if everything works fine.

Scenario

Let's imagine that during the team discussion you agreed on the final solution for the infection tracker:

• Apps will internally store a list of userIds the user encountered, together with a timestamp
• the server will store a list of all infected people
• Apps can ask the server to return ids of all infected people and then do the matching on the client side.
• Apps can inform the server about a new infection.

Task 1

Add new endpoint to fetch the list of infected people. The period should be provided by the App.

Task 2

Implement caching in the backend for the existing endpoint. Please don't use any libraries to achieve it, just plain Java.