def from_json_as_type(cls, json: dict, conversion_func: Callable):
"""
Parse object out of JSON data.
Note: if the value is not '*', and is a Python list, then it will use `conversion_func` to
parse the members into the expected types.
Args:
json: a dictionary.
conversion_func: a callable that takes 1 argument, which is the element in the value list
Example with UInt160:
{'wildcard': ['0xa400ff00ff00ff00ff00ff00ff00ff00ff00ff01', 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa']}
the first call has as argument '0xa400ff00ff00ff00ff00ff00ff00ff00ff00ff01'.
to process this example call
WildcardContainer.from_json_as_type(json_data, lambda f: types.UInt160.from_string(f))
Raises:
KeyError: if the data supplied does not contain the necessary key.
ValueError: if the data supplied cannot recreate a valid object.
"""
value = json.get('wildcard', None)
if value is None:
raise ValueError(
f"Invalid JSON - Cannot recreate wildcard from None")
if value == '*':
return WildcardContainer.create_wildcard()
if isinstance(value, list):
return WildcardContainer(
data=list(map(lambda d: conversion_func(d), value)))
raise ValueError(
f"Invalid JSON - Cannot deduce WildcardContainer type from: {value}"
)
def from_json(cls, json: dict):
"""
Parse object out of JSON data.
Note: if the value is not '*', and is a Python list, then it will assume
that the list members are strings or convertible via str().
If the wildcard should contain other data types, use the alternative `from_json_as_type()` method
Args:
json: a dictionary.
Raises:
KeyError: if the data supplied does not contain the necessary key.
ValueError: if the data supplied cannot recreate a valid object.
"""
value = json.get('wildcard', None)
if value is None:
raise ValueError(
f"Invalid JSON - Cannot recreate wildcard from None")
if value == '*':
return WildcardContainer.create_wildcard()
if isinstance(value, list):
return WildcardContainer(data=list(map(lambda d: str(d), value)))
raise ValueError(
f"Invalid JSON - Cannot deduce WildcardContainer type from: {value}"
)