If I can get the RunnableConfig by the ensure_config () function

[xiaochaohit]

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Example Code

# The code from langgraph tutorial(link:https://langchain-ai.github.io/langgraph/tutorials/customer-support/customer-support/)
@tool
def fetch_user_flight_information() -> list[dict]:
    """Fetch all tickets for the user along with corresponding flight information and seat assignments.

    Returns:
        A list of dictionaries where each dictionary contains the ticket details,
        associated flight details, and the seat assignments for each ticket belonging to the user.
    """
    config = ensure_config()  # Fetch from the context
    configuration = config.get("configurable", {})
    passenger_id = configuration.get("passenger_id", None)
    if not passenger_id:
        raise ValueError("No passenger ID configured.")

    conn = sqlite3.connect(db)
    cursor = conn.cursor()

    query = """
    ...

Description

When I was testing with the langgraph chatbot tutorial.I can't get the runnableconfig using ensure_config function.
Are there any bugs in this tutorial？
I get the result like this.It not work

================================ Human Message =================================

Hi there, what time is my flight?
================================== Ai Message ==================================
Tool Calls:
  fetch_user_flight_information (call_dMELZC2UM7gWMatoPwTZQwpx)
 Call ID: call_dMELZC2UM7gWMatoPwTZQwpx
  Args:
================================= Tool Message =================================
Name: fetch_user_flight_information

Error: ValueError('No passenger ID configured.')
 Please fix your mistakes.
================================== Ai Message ==================================

It looks like there's been an issue retrieving your flight information, as there seems to be a missing passenger ID for your query. Could you provide me with your booking reference or flight details to assist you further?

System Info

platform:linux
python version: 3.12
langchain-core:0.2.33
langgraph:0.2.4

[dosubot[bot]]

Hello @xiaochaohit! I'm here to assist you with any bugs, questions, or contributions. Let me know how I can help you!

The ensure_config function is designed to ensure that a configuration dictionary (RunnableConfig) is complete and contains all necessary keys with default values if they are not provided. However, it seems that in your case, the passenger_id is not being set correctly.

Here are a few things to check and try:

1. Ensure Proper Context Setup: Make sure that the context from which ensure_config is fetching the configuration is set up correctly. The passenger_id should be part of the configuration context.

2. Check Configuration Initialization: Verify that the configuration is being initialized with the correct values before calling ensure_config. You might need to explicitly set the passenger_id in the configuration.

3. Debugging: Add some debug statements to check what the config and configuration dictionaries contain after calling ensure_config.

Here's an example of how you might modify your code to include some debug statements:

@tool
def fetch_user_flight_information() -> list[dict]:
    """Fetch all tickets for the user along with corresponding flight information and seat assignments.

    Returns:
        A list of dictionaries where each dictionary contains the ticket details,
        associated flight details, and the seat assignments for each ticket belonging to the user.
    """
    config = ensure_config()  # Fetch from the context
    print("Config:", config)  # Debug statement
    configuration = config.get("configurable", {})
    print("Configuration:", configuration)  # Debug statement
    passenger_id = configuration.get("passenger_id", None)
    if not passenger_id:
        raise ValueError("No passenger ID configured.")

    conn = sqlite3.connect(db)
    cursor = conn.cursor()

    query = """
    ...

If the passenger_id is not present in the configuration, you need to ensure that it is being set correctly in the context where ensure_config is called. This might involve setting the passenger_id in the configuration before calling the fetch_user_flight_information function.

Additionally, there are no known bugs related to the ensure_config function in the provided content. The function is correctly imported and listed in the __all__ array, which means it should be accessible ^[1].

If you continue to face issues, please provide more details about how the context and configuration are being set up in your application.

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