I am attemping to traverse a JSON object where I am trying to build a simple rule:

If dict item has a key called 'breakup', iterate over each item in the value of that item till the time there are no more values in 'breakup' and return a dictionary which contains two items 'name' and 'amount' which will be then appended into a list of dictionaries containing all the charges.

For Example:

[{'name': 'Brokerage', 'amount': 0.0}, {'name': 'Exchange Transaction Charges', 'amount': 0.3864},  {'name': 'Stamp Duty', 'amount': 1.8}, {'name': 'Regulatory Fees', 'amount': 0.012},{'name': 'Security Transaction Tax', 'amount': 12.0}, {'name': 'GST', 'amount': 0.071756}]

Sample Starting data:

my_dict = {'total_charges': 14.270156, 'trade_value': 12000, 'breakup': [{'name': 'Brokerage', 'amount': 0.0, 'msg': '', 'breakup': []}, {'name': 'External Charges', 'amount': 2.1984, 'msg': '', 'breakup': [{'name': 'Exchange Transaction Charges', 'amount': 0.3864, 'msg': '', 'breakup': []}, {'name': 'Stamp Duty', 'amount': 1.8, 'msg': '', 'breakup': []}, {'name': 'Regulatory Fees', 'amount': 0.012, 'msg': '', 'breakup': []}]}, {'name': 'Taxes', 'amount': 12.071756, 'msg': '', 'breakup': [{'name': 'Security Transaction Tax', 'amount': 12.0, 'msg': '', 'breakup': []}, {'name': 'GST', 'amount': 0.071756, 'msg': '', 'breakup': []}]}]}

I understand that this will need to be a recursive function. What I have come up with so far is:

def my_filtering_function(pair):
    filter_keys = ['name', 'amount']
    key, value = pair
    if key in filter_keys:
        return True  # keep pair in the filtered dictionary
    else:
        return False  # filter pair out of the dictionary

def json_traverse(json_object):

    charges_list = []
  
    if "breakup" in json_object and len(json_object['breakup']) == 0:

        charges_list.append(dict(filter(my_filtering_function, a.items())))
    
    else:
        breakup = json_object['breakup']
        for item in breakup:

            json_traverse(item)

I have tried multiple other variations but none seem to be working. Any suggestions would be quite helpful.