Example of using Logger.metadata

To improve the logger metadata I use this function:

def enhance_metadata(%{} = metadata) do
    context_hash = :crypto.hash(:md5, inspect(metadata)) |> Base.encode16()

    %{
      log_id: UUIDv7.generate(),
      context_hash: context_hash,
      context: metadata
    }
  end

And the updated config:

config :logger, :default_formatter,
  # 22:44:55.512 |> error |> "some good reason" |> log_id=0199e4e5-e458-78d8-b623-31539c4db8b5 context_hash=4C0CAE343D9B60CADC8BD53D5BB84563 module=EmCanvas.Canvas.Items.AllPositions.ListAllItemsPositions function=list/1 line=18
  format: "$time |> $level |> $message |> $metadata\n",
  metadata: [
    :request_id,
    :log_id,
    :context_hash,
    :module,
    :function,
    :line
  ]