set http resource and server span tag

Author: florentinl

datadog_lambda/tracing.py

@@ -1466,10 +1466,17 @@ def create_function_execution_span(
         else:
             service_name = function_name if function_name else "aws.lambda"
 
+    if (method := trigger_tags.get("http.method")) and (
+        route := trigger_tags.get("http.route")
+    ):
+        resource = f"{method} {route}"
+    else:
+        resource = function_name
+
     span = tracer.trace(
         "aws.lambda",
         service=service_name,
-        resource=function_name,
+        resource=resource,
         span_type="serverless",
     )
     if span:

datadog_lambda/trigger.py

@@ -288,7 +288,7 @@ def extract_http_tags(event):
     """
     Extracts HTTP facet tags from the triggering event
     """
-    http_tags = {}
+    http_tags = {"span.kind": "server"}
 
     # Safely get request_context and ensure it's a dictionary
     request_context = event.get("requestContext")