1. What is the nature and description of the request?

> Add a configuration that "REJECT" when calling AAP API with duplicate field.

2. Why does the customer need this? (List the business requirements here)

> The Customer security team was reviewing API security. The security team wants to ensure that the AAP API "REJECT" the call when called with duplicate fields/keys.

3. How would you like to achieve this? (List the functional requirements here)

> By adding an option on the UI or configuration in the file.

Additional Info: 

I Checked and could not, and there are no handles for duplicate keys.

>>> import json 
>>> 
>>> def parse_json_with_duplicate_keys(json_string): 
... return json.loads(json_string) 
... 
>>> json_string = '{"a": 1, "b": 2, "a": 3}' 
>>> result = parse_json_with_duplicate_keys(json_string) 
>>> print(result) {'a': 3, 'b': 2}