Update app.py

app.py

@@ -77,6 +77,32 @@ from langchain.memory import ConversationSummaryBufferMemory,ConversationBufferM
 from langchain.schema import Document
 
 
+import os
+import base64
+LANGFUSE_PUBLIC_KEY= os.environ.get("LANGFUSE_PUBLIC_KEY")
+LANGFUSE_SECRET_KEY= os.environ.get("LANGFUSE_SECRET_KEY")
+LANGFUSE_AUTH=base64.b64encode(f"{LANGFUSE_PUBLIC_KEY}:{LANGFUSE_SECRET_KEY}".encode()).decode()
+#os.environ["OTEL_EXPORTER_OTLP_ENDPOINT"] = "https://cloud.langfuse.com/api/public/otel" # EU data region
+os.environ["OTEL_EXPORTER_OTLP_ENDPOINT"] = "https://us.cloud.langfuse.com/api/public/otel" # US data region
+os.environ["OTEL_EXPORTER_OTLP_HEADERS"] = f"Authorization=Basic {LANGFUSE_AUTH}"
+
+
+from opentelemetry.sdk.trace import TracerProvider
+from openinference.instrumentation.smolagents import SmolagentsInstrumentor
+from opentelemetry.exporter.otlp.proto.http.trace_exporter import OTLPSpanExporter
+from opentelemetry.sdk.trace.export import SimpleSpanProcessor 
+trace_provider = TracerProvider()
+trace_provider.add_span_processor(SimpleSpanProcessor(OTLPSpanExporter())) 
+SmolagentsInstrumentor().instrument(tracer_provider=trace_provider)
+
+
+
+
+
+
+
+
+
 # Cohere (not currently in use)
 from langchain.retrievers.document_compressors import CohereRerank
 from langchain_community.llms import Cohere