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151903cd18
Don't log trace_params in tracing logger, because it already has all this data Don't print span attrs, it can contain lots of headers Save small part of the response into the span, if the response was a JSON string Added JSON logging of trace details into a separate file (to not spam the main log with machine readable stuff) Record part of the response into the span Set duration attribute in server spans Log 404 errors Colorize the traces (each span slightly changes the color of the parent span) Improve trace visualization with duration formatting and notes for request/response pairs
55 lines
1.6 KiB
Python
55 lines
1.6 KiB
Python
from typing import TYPE_CHECKING
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from dataclasses import dataclass
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from typing import Any, Dict
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from tracing.utils import swallow_exceptions
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if TYPE_CHECKING:
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from tracing.tracer import Tracer
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@dataclass
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class TraceSpan:
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"""Span handle bound to a tracer.
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Provides helpers to add attributes/events/status/exception that
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will never propagate exceptions.
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"""
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name: str
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kind: str # "SERVER" | "CLIENT" | "INTERNAL"
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start_ns: int
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trace_id: str
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span_id: str
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parent_span_id: str
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attributes: Dict[str, Any]
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tracer: "Tracer"
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@swallow_exceptions
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def set_attribute(self, key: str, value: Any) -> None:
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self.attributes[key] = value
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self.tracer._notify_attribute(self, key, value)
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@swallow_exceptions
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def add_event(self, name: str, **attrs: Any) -> None:
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self.tracer._notify_event(self, name, attrs)
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@swallow_exceptions
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def set_status(self, code: str, description: str = "") -> None:
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self.attributes["status.code"] = code
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if description:
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self.attributes["status.description"] = description
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self.tracer._notify_status(self, code, description)
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@swallow_exceptions
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def record_exception(self, exc: BaseException) -> None:
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self.tracer._notify_exception(self, exc)
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def to_flat_dict(self) -> Dict[str, Any]:
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fd = self.__dict__.copy()
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fd['span_name'] = fd.pop('name') # name field is reserved in log records
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# Remove non-serializable references
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fd.pop('tracer', None)
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attributes = fd.pop("attributes")
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fd.update(attributes)
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return fd
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