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alexanderankin/ignore_properties.py

Last active February 14, 2024 10:04
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omits extra fields in python dataclasses like `@JsonIgnoreProperties(ignoreUnknown = true)`
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ignore_properties.py
from dataclasses import fields
from typing import TypeVar, Type
IPT = TypeVar('IPT')
def ignore_properties(cls: Type[IPT], dict_: any) -> IPT:
"""omits extra fields like @JsonIgnoreProperties(ignoreUnknown = true)"""
if isinstance(dict_, cls): return dict_ # noqa
class_fields = {f.name for f in fields(cls)}
filtered = {k: v for k, v in dict_.items() if k in class_fields}
return cls(**filtered)
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