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* `alias` works only during deserialization * `rename` + `alias` works as expected * If alias conflicts, the first one wins ``` @serde @DataClass class Foo: a: int = field(alias=["b", "c", "d"]) ```
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# Alias | ||
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You can set aliases for field names. Alias only works for deserialization. | ||
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```python | ||
@serde | ||
@dataclass | ||
class Foo: | ||
a: str = field(alias=["b", "c"]) | ||
``` | ||
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`Foo` can be deserialized from either `{"a": "..."}`, `{"b": "..."}` or `{"c": "..."}`. | ||
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For complete example, please see [examples/alias.py](https://github.com/yukinarit/pyserde/blob/master/examples/alias.py) |
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from dataclasses import dataclass | ||
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from serde import field, serde | ||
from serde.json import from_json | ||
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@serde | ||
@dataclass | ||
class Foo: | ||
a: int = field(alias=["b", "c", "d"]) | ||
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def main(): | ||
s = '{"a": 10}' | ||
print(f"From Json: {from_json(Foo, s)}") | ||
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s = '{"b": 20}' | ||
print(f"From Json: {from_json(Foo, s)}") | ||
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s = '{"c": 30}' | ||
print(f"From Json: {from_json(Foo, s)}") | ||
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s = '{"d": 40}' | ||
print(f"From Json: {from_json(Foo, s)}") | ||
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try: | ||
s = '{"e": 50}' | ||
print(f"From Json: {from_json(Foo, s)}") | ||
except Exception: | ||
pass | ||
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if __name__ == '__main__': | ||
main() |
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