Pass request attributes to Sampler in Django

open-telemetry · Mar 27, 2023 · 94e035b · 94e035b
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -17,6 +17,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   ([#1690](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/1690))
 - Add metrics instrumentation for sqlalchemy
   ([#1645](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/1645))
+- Make requests span attributes available to Django sampler
+  ([#1645](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/1645))
+
 
 ### Fixed
 

diff --git a/...rumentation-django/src/opentelemetry/instrumentation/django/middleware/otel_middleware.py b/...rumentation-django/src/opentelemetry/instrumentation/django/middleware/otel_middleware.py
@@ -212,6 +212,7 @@ def process_request(self, request):
             carrier_getter = wsgi_getter
             collect_request_attributes = wsgi_collect_request_attributes
 
+        attributes = collect_request_attributes(carrier)
         span, token = _start_internal_or_server_span(
             tracer=self._tracer,
             span_name=self._get_span_name(request),
@@ -220,9 +221,9 @@ def process_request(self, request):
             ),
             context_carrier=carrier,
             context_getter=carrier_getter,
+            attributes=attributes,
         )
 
-        attributes = collect_request_attributes(carrier)
         active_requests_count_attrs = _parse_active_request_count_attrs(
             attributes
         )