Created
September 22, 2023 19:29
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Flatten JSON with Arrays
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import json | |
def parse(obj, path = None, use_indices = False): | |
if path is None: | |
path = [] | |
if isinstance(obj, list): | |
if use_indices: | |
return [p for i, item in enumerate(obj) for p in parse(item, path + [i], use_indices)] | |
return [p for i in obj for p in parse(i, path, use_indices) ] | |
if isinstance(obj, dict): | |
return cross_product([parse(v, path + [k], use_indices) for k, v in obj.items()]) | |
return [{tuple(path): obj}] | |
def cross_product(dicts): | |
if len(dicts) == 0: | |
return [{}] | |
return [ {**lhs, **rhs} for lhs in dicts[0] for rhs in cross_product(dicts[1:])] | |
def to_json(j): | |
rc = [] | |
for item in j: | |
converted = {} | |
for k,v in item.items(): | |
converted['.'.join(k)] = v | |
rc.append(converted) | |
if __name__=='__main__': | |
j = parse(data) | |
print(to_json(j)) |
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