move attribute to start_span

Author: alexander-alderman-webb

sentry_sdk/integrations/boto3.py

@@ -76,6 +76,7 @@ def _sentry_request_created(
             attributes={
                 "sentry.op": OP.HTTP_CLIENT,
                 "sentry.origin": Boto3Integration.origin,
+                SPANDATA.RPC_METHOD: f"{service_id}/{operation_name}",
             },
         )
         if request.url is not None:
@@ -85,7 +86,6 @@ def _sentry_request_created(
                 span.set_attribute(SPANDATA.URL_QUERY, parsed_url.query)
                 span.set_attribute(SPANDATA.URL_FRAGMENT, parsed_url.fragment)
 
-        span.set_attribute(SPANDATA.RPC_METHOD, f"{service_id}/{operation_name}")
         if request.method is not None:
             span.set_attribute(SPANDATA.HTTP_REQUEST_METHOD, request.method)
     else: