59 lines
2.0 KiB
Python
59 lines
2.0 KiB
Python
# Copyright 2020 The gRPC Authors
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Reference implementation for status mapping in gRPC Python."""
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from google.rpc import status_pb2
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from grpc.experimental import aio
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from ._common import GRPC_DETAILS_METADATA_KEY
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from ._common import code_to_grpc_status_code
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async def from_call(call: aio.Call):
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"""Returns a google.rpc.status.Status message from a given grpc.aio.Call.
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This is an EXPERIMENTAL API.
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Args:
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call: An grpc.aio.Call instance.
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Returns:
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A google.rpc.status.Status message representing the status of the RPC.
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"""
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code = await call.code()
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details = await call.details()
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trailing_metadata = await call.trailing_metadata()
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if trailing_metadata is None:
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return None
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for key, value in trailing_metadata:
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if key == GRPC_DETAILS_METADATA_KEY:
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rich_status = status_pb2.Status.FromString(value)
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if code.value[0] != rich_status.code:
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raise ValueError(
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"Code in Status proto (%s) doesn't match status code (%s)"
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% (code_to_grpc_status_code(rich_status.code), code)
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)
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if details != rich_status.message:
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raise ValueError(
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"Message in Status proto (%s) doesn't match status details"
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" (%s)" % (rich_status.message, details)
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)
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return rich_status
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return None
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__all__ = [
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"from_call",
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]
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