test(langfuse): remove remaining v2 SDK usage

tests/local_testing/test_alangfuse.py

@@ -83,7 +83,7 @@ def search_logs(log_file_path, num_good_logs=1):
                     print(line.strip())
                     print("\n\n")
                     match = re.search(
-                        r'"POST /api/public/ingestion HTTP/1.1" (\d+) (\d+)',
+                        r'"POST /api/public/otel/v1/traces HTTP/1.1" (\d+) (\d+)',
                         line,
                     )
                     if match:

tests/old_proxy_tests/tests/test_pass_through_langfuse.py

@@ -7,7 +7,8 @@ langfuse = Langfuse(
 )
 
 print("sending langfuse trace request")
-trace = langfuse.trace(name="test-trace-litellm-proxy-passthrough")
+with langfuse.start_as_current_observation(name="test-trace-litellm-proxy-passthrough"):
+    pass
 print("flushing langfuse request")
 langfuse.flush()
 

tests/test_config.py

@@ -110,7 +110,12 @@ async def test_team_logging():
 
             print(f"searching for trace_id={_trace_id} on langfuse")
 
-            generations = langfuse_client.get_generations(trace_id=_trace_id).data
+            trace_id = langfuse_client.create_trace_id(seed=_trace_id)
+            generations = langfuse_client.api.observations.get_many(
+                trace_id=trace_id,
+                type="GENERATION",
+                parse_io_as_json=True,
+            ).data
 
             # 1 generation with this trace id
             assert len(generations) == 1