Sean L.

# Writing Span
import os
from langchain_anthropic import ChatAnthropic
from openinference.instrumentation.langchain import LangChainInstrumentor
from phoenix.otel import register

trace_provider = register(
    endpoint="http://localhost:4317"
)
LangChainInstrumentor().instrument(trace_provider=trace_provider)

llm = ChatAnthropic(
    model="claude-3-5-sonnet-latest",
    api_key=ANTHROPIC_API_KEY
)

llm.invoke("hello")

# Reading Span
# arize-phoenix==5.8.0
import phoenix as px

df = px.Client(
    endpoint="http://localhost:6006",
).get_spans_dataframe()

# Error Message
HTTPStatusError: Server error '500 Internal Server Error' for url 'http://localhost:6006/v1/spans?project_name=default&project-name=default'

pyarrow.lib.ArrowInvalid: ('cannot mix struct and non-struct, non-null values', 'Conversion failed for column attributes.llm.prompt_template.variables with type object')

from langchain_core.documents import Document

def get_page_content(self, doc):
    return f"Document Title: {doc['title']}\nDocument Excerpt: {doc['excerpt']}"

docs.append(Document(
    page_content=self.get_page_content(s["source"]),
...))