{
    "assets": @inc=http://@env{CONFIG_SERVICE}/refdata/assets
    , "instruments": @inc=http://@env{CONFIG_SERVICE}/refdata/instruments
    , "exchanges": @inc=http://@env{CONFIG_SERVICE}/refdata/exchanges
    , "exchange_instruments": @inc=http://@env{CONFIG_SERVICE}/refdata/exchange_instruments
    , "instant_exch_inst_ids": ["ALPACA"]
}