Exercise - Spring Boot - Interceptors-Middleware 2

• write a Spring Boot application with the necessary dependencies that:
  • works with an entity Month that has the following attributes:
    • an int monthNumber
    • an englishName
    • an italianName
    • a germanName
  • has 2 controllers:
    • BasicController that:
      • welcomes the user on the root mapping
    • MonthController that:
      • is mapped on months
      • returns a Month using a specific request attribute
  • has an interceptor/middleware called MonthInterceptor that:
    • has a list of 6 Months
    • takes the header monthNumber from the request
    • if monthNumber is null/empty then returns an HTTP Bad Request error
    • else:
      • looks if the passed monthNumber is present in the list
        • if present, returns it using a specific request attribute
        • else, returns an empty Month with all the string values set to nope
      • returns an HTTP OK status
• test the endpoint call using Postman and considering at least 4 cases:
  • the header monthNumber is absent
  • the header monthNumber is empty
  • the header monthNumber has a value that is in the list
  • the header monthNumber has a value that is not in the list
• for reviewers: Postman's API calls collection is in Interceptors-2.postman_collection.json