Configuration for AWS Bedrock.

Examples

For applications hosted in AWS, ExAws caches temporary credentials (when running on AWS), so in the credentials function you can pull the current cached credentials from ExAws.

ChatAnthropic.new!(%{
  model: "anthropic.claude-3-5-sonnet-20241022-v2:0",
  bedrock: %{
    credentials: fn ->
      ExAws.Config.new(:s3)
      |> Map.take([:access_key_id, :secret_access_key])
      |> Map.to_list()
    end,
    region: "us-west-2"
  }
})

For applications hosted anywhere, you can configure the Bedrock settings into the LangChain config like this (recommended for config/runtime.exs):

config :langchain,
  aws_access_key_id: System.fetch_env!("AWS_ACCESS_KEY_ID"),
  aws_secret_access_key: System.fetch_env!("AWS_SECRET_ACCESS_KEY"),
  aws_region: System.get_env("AWS_REGION", "us-west-1"),
  aws_session_token: System.get_env("AWS_SESSION_TOKEN") # optional

Then, when you want to later use a Bedrock Anthropic model, this is will load it:

  ChatAnthropic.new!(%{
    model: "anthropic.claude-3-5-sonnet-20241022-v2:0",
    bedrock: BedrockConfig.from_application_env!()
  })