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38 lines
1.3 KiB
38 lines
1.3 KiB
"""JSON specific utilities."""
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from datetime import date
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from typing import Any
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import rfc3339
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from flask.json import JSONEncoder
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from corvus.api.model import APIResponse, BaseAPIMessage
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from corvus.db import db
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from corvus.errors import BaseError
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from corvus.service.transformation_service import serialize_model
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class CustomJSONEncoder(JSONEncoder):
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"""Ensure that datetime values are serialized correctly."""
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def default(self, o: Any) -> Any: # pylint: disable=E0202,R0911
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"""Handle encoding date and datetime objects according to rfc3339."""
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try:
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if isinstance(o, date):
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return rfc3339.format(o)
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if isinstance(o, APIResponse):
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payload = o.payload
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if isinstance(payload, db.Model):
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return serialize_model(o.payload, o.options)
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if isinstance(payload, BaseError):
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return payload.to_dict()
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if isinstance(payload, BaseAPIMessage):
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return payload.to_dict()
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return payload
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if isinstance(o, db.Model):
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return serialize_model(o)
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iterable = iter(o)
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except TypeError:
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pass
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else:
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return list(iterable)
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return JSONEncoder.default(self, o)
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