Function: getUsdmMarketDataWsKeyForTopic()

function getUsdmMarketDataWsKeyForTopic(wsKey: WsKey, topic: string): WsKey;

USD-M Futures retired the legacy combined market data endpoint on 2026-04-23. Keep the legacy usdm wsKey convenient by routing raw market data streams to Binance's split public/market stream keys.

Parameters

Parameter	Type
wsKey	WsKey
topic	string

Returns

WsKey