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import typing |
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from dataclasses import dataclass, field |
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from .. import constants, errors, utils |
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__all__ = ( |
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'JsonRpcRequest', |
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'JsonRpcBatchRequest', |
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) |
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@dataclass |
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class JsonRpcRequest: |
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method_name: str |
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id: typing.Any = constants.NOTHING |
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jsonrpc: str = constants.VERSION_2_0 |
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extra_args: dict = field(default_factory=dict) |
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context: dict = field(default_factory=dict) |
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params: typing.Any = constants.NOTHING |
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args: typing.Optional[typing.Union[list, tuple]] = None |
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kwargs: typing.Optional[dict] = None |
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def __post_init__(self) -> None: |
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utils.validate_jsonrpc(self.jsonrpc) |
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if self.params is constants.NOTHING: |
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self.set_args_and_kwargs(self.args, self.kwargs) |
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elif not self.args and not self.kwargs: |
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self.set_params(self.params) |
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else: |
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raise errors.InvalidParams('Need use params or args with kwargs.') |
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def set_params(self, params: typing.Any) -> None: |
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self.params = params |
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self.args, self.kwargs = utils.convert_params_to_args_and_kwargs(params) |
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def set_args_and_kwargs(self, args: typing.Optional[list] = None, kwargs: typing.Optional[dict] = None) -> None: |
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self.params, self.args, self.kwargs = utils.parse_args_and_kwargs(args, kwargs) |
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@property |
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def is_notification(self) -> bool: |
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return self.id in constants.EMPTY_VALUES |
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@classmethod |
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def from_dict(cls, data: typing.Dict[str, typing.Any], **kwargs) -> 'JsonRpcRequest': |
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cls._validate_json_request(data) |
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return cls( |
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id=data.get('id', constants.NOTHING), |
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method_name=data['method'], |
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params=data.get('params', constants.NOTHING), |
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jsonrpc=data['jsonrpc'], |
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**kwargs, |
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) |
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def to_dict(self) -> dict: |
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data = { |
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'method': self.method_name, |
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'jsonrpc': self.jsonrpc, |
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} |
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if not self.is_notification: |
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data['id'] = self.id |
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if self.params is not constants.NOTHING: |
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data['params'] = self.params |
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return data |
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@staticmethod |
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def _validate_json_request(data: typing.Any) -> None: |
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if not isinstance(data, dict): |
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raise errors.InvalidRequest('A request must be of the dict type.') |
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if not ({'method', 'jsonrpc'}) <= data.keys(): |
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raise errors.InvalidRequest('A request must contain "method" and "jsonrpc".') |
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utils.validate_jsonrpc(data['jsonrpc']) |
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@dataclass |
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class JsonRpcBatchRequest: |
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requests: typing.List[JsonRpcRequest] = field(default_factory=list) |
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@property |
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def is_notification(self) -> bool: |
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return all(request.is_notification for request in self.requests) |
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def to_list(self) -> typing.List[dict]: |
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return [request.to_dict() for request in self.requests] |
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@classmethod |
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def from_list(cls, data: list, **kwargs) -> 'JsonRpcBatchRequest': |
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requests = [ |
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JsonRpcRequest.from_dict(item, **kwargs) |
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for item in data |
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] |
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return cls(requests=requests) |
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expert-m /
aiohttp-rpc
