market:futures:tickers [ENT]

Make sure you're connected. Either the instrument or exchange have to be specified - one needs to be specified, but both cannot be empty.

Note that there is a dedicated URL for this subscription: wss://ws.web3api.io/futures.

Request

{
  "jsonrpc" : "2.0",
  "id"      : 1,
  "method"  : "subscribe",
  "params"  : [ "market:futures:tickers", { "instrument": "XRPUSDT", "exchange": "binance" } ]
}

Param	Type	Description
instrument	`string`	The asset instrument.
exchange	`string`	The exchange for which to retrieve asset instruments.

Response

"result": {
  "exchange": "binance",
  "instrument": "XRPUSDT",
 "timestamp": 1607745120000,
  "exchangeTimestamp": 1607745120907,
  "exchangeTimestampNanoseconds": 0,
  "bid": 0.3718,
  "ask": 0.372,
  "mid": 0.3719,
  "last": null,
}

Field	Type	Description
exchange	`string`	The exchange.
timestamp	`number`	The time at which the ticker took place.

Example

const WebSocket = require('ws');
const ws = new WebSocket('wss://ws.web3api.io/futures', {headers: {x-api-key:'<api_key>'}});

ws.on('open', () => {
  ws.send(JSON.stringify({
      jsonrpc: '2.0',
      method: 'subscribe',
      params: ['market:futures:tickers', {'instrument': 'XRPUSDT', 'exchange': 'binance'}],
      id: 1,
    }));
});

ws.on('message', data => {
  console.log(JSON.stringify(JSON.parse(data), null, 2));
});