Chatbot

To start your Phoenix server:

• Run mix setup to install and setup dependencies
• Start Phoenix endpoint with mix phx.server or inside IEx with iex -S mix phx.server

Now you can visit localhost:4000 from your browser.

Configuration options

Mock API calls

If you just want to try out the chatbot, but you don't have any LLM setup yet, you can set MOCK_LLM_API to true and use the chatbot with fake mocked messages.

MOCK_LLM_API=true mix phx.server

Using Ollama

Currently, the application is set to use Ollama. The model is set to llama3.2:latest. Change the it in lib/chatbot/chat.ex.

To use Ollama, you need to have it installed and running on your machine. Look at the Ollama website for more information. To pull the model, run the following command:

ollama pull llama3.2:latest

Using OpenAI

To use OpenAI, change the @llm definition in the lib/chatbot/chat.ex.

@llm LangChain.ChatModels.ChatOllamaAI.new!(%{
  model: "llama3.2:latest",
  stream: false
})

Set the OPENAI_API_KEY environment variable to your OpenAI API key.

OPENAI_API_KEY=your_openai_api_key mix phx.server