Trades

const ws = require('ws')
const w = new ws('wss://api-pub.bitfinex.com/ws/2')

w.on('message', (msg) => console.log(msg))

let msg = JSON.stringify({ 
  event: 'subscribe', 
  channel: 'trades', 
  symbol: 'tBTCUSD' 
})

w.on('open', () => w.send(msg))

wscat -c wss://api-pub.bitfinex.com/ws/2
{ "event": "subscribe",  "channel": "trades",  "symbol": "tBTCUSD" }

ws = websocket.WebSocketApp('wss://api-pub.bitfinex.com/ws/2')

ws.on_open = lambda self: self.send('{ "event": "subscribe", "channel": "trades", "symbol": "tBTCUSD"}')

ws.on_message = lambda self, evt:  print (evt)

// request
{ 
  event: "subscribe", 
  channel: "trades", 
  symbol: SYMBOL 
}

// response Trading
{
  event: "subscribed",
  channel: "trades",
  chanId: CHANNEL_ID,
  symbol: "tBTCUSD"
  pair: "BTCUSD"
}

{"event":"subscribed","channel":"trades","chanId":19111,"symbol":"tBTCUSD","pair":"BTCUSD"}

// response Funding
{
  event: "subscribed",
  channel: "trades",
  chanId: CHANNEL_ID,
  symbol: "fUSD",
  currency: "USD"
}

{"event":"subscribed","channel":"trades","chanId":339521,"symbol":"fUSD","currency":"USD"}

// on trading pairs (ex. tBTCUSD)
[
  CHANNEL_ID,
  [
    [
      ID,
      MTS,
      AMOUNT,
      PRICE
    ],
    ...
  ]
]

[17470,[[401597393,1574694475039,0.005,7244.9],[401597392,1574694470503,-0.01,7245.3]]]  

// on funding currencies (ex. fUSD)
[
  CHANNEL_ID,
  [
    [
      ID,
      MTS,
      AMOUNT,
      RATE,
      PERIOD
    ],
    ...
  ]
]
  
[339521,[[133323072,1574694245478,-258.7458086,0.0002587,2],[133323071,1574694245368,-1932.20263916,0.0002587,2]]]

// on trading pairs (ex. tBTCUSD)
[
  CHANNEL_ID,
  <"te", "tu">,
  [
    ID,
    MTS,
    AMOUNT,
    PRICE
  ]
]

[17470,"te",[401597395,1574694478808,0.005,7245.3]]
[17470,"tu",[401597395,1574694478808,0.005,7245.3]]

// on funding currencies (ex. fUSD)
[
  CHANNEL_ID,
  <"fte", "ftu">,
  [
    ID,
    MTS,
    AMOUNT,
    RATE,
    PERIOD
  ]
]

[337371,"fte",[133323543,1574694605000,-59.84,0.00023647,2]]
[337371,"ftu",[133323543,1574694605000,-59.84,0.00023647,2]]

Request Fields

Fields	Type	Description
SYMBOL	String	Trading pair or funding currency

Stream Fields

Fields	Type	Description
CHANNEL_ID	int	Identification number assigned to the channel for the duration of this connection.
ID	int	Trade ID
MTS	int	millisecond time stamp
±AMOUNT	float	Amount bought (positive) or sold (negative).
PRICE	float	Price at which the trade was executed
RATE	float	Funding rate of the trade
PERIOD	int	Funding offer period in days

The order that causes the trade (the taker) determines if it is a buy or a sell.