HTTP client behaviour for LLM API calls.

The default implementation is LLM.HTTPClient.Req, which wraps the Req library. You can swap it out for testing or to add custom behavior (retries, logging, etc.).

Custom implementation

defmodule MyApp.HTTPClient do
  @behaviour LLM.HTTPClient

  @impl true
  def request(req) do
    Req.request(req)
  end
end

Configuration

# config/config.exs
config :llm, :http_client, MyApp.HTTPClient

Testing with Mox

Mox.defmock(LLM.HTTPClient.Mock, for: LLM.HTTPClient)

# config/test.exs
config :llm, :http_client, LLM.HTTPClient.Mock