Spring Boot Rest service

Use in memory db. Step 1: Build an Orders Service • Build a service that’s able to receive simple orders of shopping goods via a REST API • Apples cost 60 cents and oranges cost 25 cents • The service should return a summary of the order, including the cost of the order • Add unit tests that validate your code Step 2: Simple offer • The shop decides to introduce two new offers • buy one get one free on Apples • 3 for the price of 2 on Oranges • Update your functions & unit tests accordingly Step 3: Store and retrieve orders • The service should now store the orders that a customer submits • There should be an endpoint to get a particular order based on its ID • There should be an endpoint to get all orders • This store does not have to be to disk • Update your functions & unit tests accordingly