note

This content is from the README file of https://github.com/flux0-ai/flux0/tree/develop/examples/langchain_simple. The source code for this example can be found here

Flux0 LangChain Simple Example

This example demonstrates a minimal agent runner integration using Flux0 with the LangChain framework to stream a translation from English to Italian using OpenAI model.

Overview

The agent:

• Extracts user input from the session event stream.
• Sends the input to a LangChain chat model initialized with a translation prompt.
• Streams the output events back to the client in real time.

Key Components

LangChainAgentRunner

A simple agent runner that does the following:

1. Retrieves the latest user message from the session.
2. Initializes a LangChain chat model.
3. Sends a translation prompt along with the user's input.
4. Streams model events to the client.

Requirements

• Dependencies: langchain and langchain[openai].
• OPENAPI_KEY env var set.

Usage

Ensure the agent is defined by:

flux0 agents create --name langchain --type langchain_simple