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LangChain Example (Multiple Providers)

This example demonstrates how to use LaunchDarkly's AI Config with LangChain, supporting multiple providers including OpenAI, Bedrock, and Gemini. You can add additional LangChain providers using the poetry add command.

Prerequisites

  • Python 3.10 or higher
  • Poetry installed
  • A LaunchDarkly account and SDK key
  • API keys for the providers you want to use

Setup

  1. Create the following config in your LaunchDarkly project. You can use a different key by setting the environment variable in your .env.

    • Create an AI Config with a model and a system message. Default key: sample-completion-config.

  2. Create a .env file in this directory with the following variables:

    LAUNCHDARKLY_SDK_KEY=your-launchdarkly-sdk-key
LAUNCHDARKLY_AI_CONFIG_KEY=sample-completion-config

    Add the API keys for the providers you want to use:

    OPENAI_API_KEY=your-openai-api-key
GOOGLE_API_KEY=your-google-api-key
AWS_ACCESS_KEY_ID=your-access-key-id
AWS_SECRET_ACCESS_KEY=your-secret-access-key

  3. Install the required dependencies:

    poetry install

Run

poetry run langchain