Venue configuration for a tai instance. This module provides a utility function Tai.Venues.Config.parse/0 that hydrates a list of venues from the %Tai.Config{}.

It can be configured with the following options:

config :tai,
  venues: %{
    okex: [
      # Module that implements the `Tai.Venues.Adapter` behaviour
      adapter: Tai.VenueAdapters.OkEx,

      # [default: %Tai.Config#adapter_timeout] [optional] Per venue override for start
      # timeout in milliseconds
      timeout: 120_000,

      # [default: true] [optional] Starts the venue on initial boot
      start_on_boot: true,

      # [default: []] [optional] Subscribe to venue specific channels
      channels: [],

      # [default: "*"] [optional] A `juice` query matching on alias and symbol, or `{module, func_name}`
      # to filter available products. Juice query syntax is described in more detail at
      # https://github.com/rupurt/juice#usage
      products: "eth_usd_200925 eth_usd_bi_quarter",

      # [default: "*"] [optional] A `juice` query matching on alias and symbol, or `{module, func_name}`
      # to filter streaming order books & trades from available products. Juice query syntax is described 
      # in more # detail at https://github.com/rupurt/juice#usage
      market_streams: "* -eth_usd_200925",

      # [default: 1] [optional] The number of streaming order book levels to maintain. This
      # value has adapter specific support. For example some venues may only allow you to
      # subscribe in blocks of 5 price points. So supported values for that venue
      # are `5`, `10`, `15`, ...
      quote_depth: 1,

      # [default: "*"] [optional] A juice query matching on asset to filter available accounts.
      # Juice query syntax is described in more detail at https://github.com/rupurt/juice#usage
      accounts: "*",

      # [default: %{}] [optional] `Map` of named credentials to use private API's on the venue
      credentials: %{
        main: %{
          api_key: {:system_file, "OKEX_API_KEY"},
          api_secret: {:system_file, "OKEX_API_SECRET"},
          api_passphrase: {:system_file, "OKEX_API_PASSPHRASE"}
        }
      },

      # [default: %{}] [optional] `Map` of extra venue configuration parameters for non-standard
      # tai functionality.
      opts: %{},
    ]
  }