loading non existent list, better error message about todo-list-fullstack HOT 1 CLOSED

PROBLEM:
When trying to load a nonexisting list, the system displays a technical error message on the Web page.
The purpose of this task is to get a more user-friendly message.

ANALYSIS
My understanding of the code workflow is that:

1. In the MockDatastoreClient class from todo-service, the BDD response is simulated, so error messages are generated when the list does not exist, for example.
2. In ToDoService class from todo-service, the different action methods catch the errors and convert them to RuntimeException before sending them to BFF layer.
3. In MyErrorHandler class from BFF, we handle and format errors before sending them to the front end.
   In the handle method, the system use .toSting() to format the JSON error before sending it that is why we see all the error attributes as type and message displayed on the Web page.

SOLUTION
So I propose reviewing the MyErrorHandler class to extract expected information before sending the error label to the front end. See my change in the following fork:
https://github.com/tudiapason/todo-list-fullstack/tree/main

MANUAL TESTS

1. FUNCTIONAL TEST:

• Try to load a nonexistent list: New error message is displayed (See 20230501_MSG_NoSuchList.jpg(

3. REGRESSION TEST:

• Try to load the list with the field empty: Previous message still displayed (See 20230501_MSG_NoValuePresent.jpg)

AUTOMATED TESTS
IN PROGRESS

from todo-list-fullstack.