I have confusion between Rest API and Websocket. Although WS is faster than REST API in terms of data fetching. My application is to Buy a Coin(any item) on any Exchange (Binance, Kucoin, Coinbase) as fast as I can. In the documentations, Every exchange provides Endpoints for order place(Buying the coin) only for REST API. They only provide a Coin price stream for Websockets.
Is it Possible to Buy or post something using Websockets or do we have to use REST API for that Purpose?
Thanks in Advance
i don't think you need websocket to place an order, even if you are developing a trading bot, placing an order will not happen a lot.
so i suggest you use REST API
also, i think the only useful way to have websocket, is to get K lines.
REST API vs Websocket for buying an asset