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282ba35
feat(asgi): Migrate away from event processor in span first
sentrivana Mar 30, 2026
e2484bd
fixes
sentrivana Mar 30, 2026
51af434
Merge branch 'master' into ivana/migrate-asgi-event-processor
sentrivana Mar 30, 2026
5c3174f
.
sentrivana Mar 30, 2026
b270e5a
.
sentrivana Apr 1, 2026
e93fd1b
.
sentrivana Apr 1, 2026
7cde973
capture_items
sentrivana Apr 2, 2026
ef9e640
Merge branch 'master' into ivana/migrate-asgi-event-processor
sentrivana Apr 2, 2026
df3f3af
.
sentrivana Apr 2, 2026
babb3bd
.
sentrivana Apr 2, 2026
75429dc
no annotatedvalues
sentrivana Apr 2, 2026
d9d7674
.
sentrivana Apr 2, 2026
32e4191
.
sentrivana Apr 2, 2026
5cecf97
more tests
sentrivana Apr 2, 2026
a39337b
Merge branch 'master' into ivana/migrate-asgi-event-processor
sentrivana Apr 2, 2026
7fb4863
.
sentrivana Apr 2, 2026
7490fe3
.
sentrivana Apr 2, 2026
c11e8f1
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sentrivana Apr 2, 2026
982d471
Merge branch 'master' into ivana/migrate-asgi-event-processor
sentrivana Apr 13, 2026
10bf7c9
ruff
sentrivana Apr 13, 2026
87d00e6
source is not default anymore
sentrivana Apr 13, 2026
507306f
Merge branch 'master' into ivana/migrate-asgi-event-processor
sentrivana Apr 13, 2026
eebc385
mypy
sentrivana Apr 13, 2026
e388901
var name
sentrivana Apr 13, 2026
77b9298
Merge branch 'master' into ivana/migrate-asgi-event-processor
sentrivana Apr 13, 2026
2202e0c
set attrs directly on span, not scope
sentrivana Apr 13, 2026
4aaf9d4
Merge branch 'master' into ivana/migrate-asgi-event-processor
sentrivana Apr 13, 2026
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30 changes: 30 additions & 0 deletions sentry_sdk/integrations/_asgi_common.py
Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,7 @@
from typing import Union
from typing_extensions import Literal

from sentry_sdk._types import Attributes
from sentry_sdk.utils import AnnotatedValue


Expand Down Expand Up @@ -105,3 +106,32 @@
request_data["env"] = {"REMOTE_ADDR": _get_ip(asgi_scope)}

return request_data


def _get_request_attributes(asgi_scope: "Any") -> "dict[str, Any]":
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This is an attributes based copy of _get_request_data just above

"""
Return attributes related to the HTTP request from the ASGI scope.
"""
attributes: "Attributes" = {}

ty = asgi_scope["type"]
if ty in ("http", "websocket"):
if asgi_scope.get("method"):
attributes["http.request.method"] = asgi_scope["method"].upper()

headers = _filter_headers(_get_headers(asgi_scope))
# TODO[span-first]: Correctly merge headers if duplicate
for header, value in headers.items():
attributes[f"http.request.headers.{header.lower()}"] = [value]

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@sentry/warden / warden: find-bugs

AnnotatedValue objects stored as span attributes instead of valid AttributeValue types

When `should_send_default_pii()` returns False, `_filter_headers()` returns sensitive header values as `AnnotatedValue` objects (see `_wsgi_common.py:218-225`). The new code at line 124-125 stores these directly into attributes without checking if they're `AnnotatedValue` instances. Since `AnnotatedValue` is not a valid `AttributeValue` type (which only accepts primitives and lists/tuples of primitives), this will cause type errors or unexpected serialization behavior when the attributes are processed downstream.

attributes["http.query"] = _get_query(asgi_scope)
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attributes["url.full"] = _get_url(
asgi_scope, "http" if ty == "http" else "ws", headers.get("host")
)

client = asgi_scope.get("client")
if client and should_send_default_pii():
attributes["client.address"] = _get_ip(asgi_scope)

return attributes
65 changes: 61 additions & 4 deletions sentry_sdk/integrations/asgi.py
Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,7 @@
from sentry_sdk.consts import OP
from sentry_sdk.integrations._asgi_common import (
_get_headers,
_get_request_attributes,
_get_request_data,
_get_url,
)
Expand All @@ -23,7 +24,11 @@
nullcontext,
)
from sentry_sdk.sessions import track_session
from sentry_sdk.traces import StreamedSpan
from sentry_sdk.traces import (
StreamedSpan,
SegmentSource,
SOURCE_FOR_STYLE as SEGMENT_SOURCE_FOR_STYLE,
)
from sentry_sdk.tracing import (
SOURCE_FOR_STYLE,
Transaction,
Expand All @@ -40,6 +45,7 @@
_get_installed_modules,
reraise,
capture_internal_exceptions,
qualname_from_function,
)

from typing import TYPE_CHECKING
Expand Down Expand Up @@ -235,7 +241,7 @@
transaction_source, "value", transaction_source
),
"sentry.origin": self.span_origin,
"asgi.type": ty,
"network.protocol.name": ty,
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}

if ty in ("http", "websocket"):
Expand Down Expand Up @@ -301,6 +307,9 @@
else nullcontext()
)

for attribute, value in _get_request_attributes(scope).items():
sentry_scope.set_attribute(attribute, value)
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with span_ctx as span:
try:

Expand Down Expand Up @@ -329,13 +338,24 @@
return await send(event)

if asgi_version == 2:
return await self.app(scope)(
result = await self.app(scope)(
receive, _sentry_wrapped_send
)
else:
return await self.app(
result = await self.app(
scope, receive, _sentry_wrapped_send
)

with capture_internal_exceptions():
name, source = self._get_segment_name_and_source(
self.transaction_style, scope
)
if isinstance(span, StreamedSpan):
span.name = name
span.set_attribute("sentry.span.source", source)

return result

Check warning on line 357 in sentry_sdk/integrations/asgi.py

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@sentry/warden / warden: code-review

StreamedSpan name and source not updated on exception path

When the ASGI app raises an exception, the code to update the `StreamedSpan` name and source (lines 349-355) is skipped because it's only in the success path. This means error spans will have the generic initial transaction name instead of the resolved endpoint/URL name. The event processor handled this for traditional transactions, but the PR description states span-first mode has no event processors, leaving error spans with incomplete data.
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except Exception as exc:
suppress_chained_exceptions = (
sentry_sdk.get_client()
Expand Down Expand Up @@ -424,3 +444,40 @@
return name, source

return name, source

def _get_segment_name_and_source(
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This is a copy of _get_transaction_name_and_source above, just adapted for segments

self: "SentryAsgiMiddleware", segment_style: str, asgi_scope: "Any"
) -> "Tuple[str, str]":
name = None
source = SEGMENT_SOURCE_FOR_STYLE[segment_style].value
ty = asgi_scope.get("type")

if segment_style == "endpoint":
endpoint = asgi_scope.get("endpoint")
# Webframeworks like Starlette mutate the ASGI env once routing is
# done, which is sometime after the request has started. If we have
# an endpoint, overwrite our generic transaction name.
if endpoint:
name = qualname_from_function(endpoint) or ""
else:
name = _get_url(asgi_scope, "http" if ty == "http" else "ws", host=None)
source = SegmentSource.URL.value

elif segment_style == "url":
# FastAPI includes the route object in the scope to let Sentry extract the
# path from it for the transaction name
route = asgi_scope.get("route")
if route:
path = getattr(route, "path", None)
if path is not None:
name = path
else:
name = _get_url(asgi_scope, "http" if ty == "http" else "ws", host=None)
source = SegmentSource.URL.value

if name is None:
name = _DEFAULT_TRANSACTION_NAME
source = SegmentSource.ROUTE.value
return name, source

return name, source
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