Subscribing & Unsubscribing

Once connected to the WebSocket API you can subscribe to various feeds using the subscribe or unsubscribe commands.

These commands should be JSON with the following properties:

Property	Type	Description
type	string	Command you are sending to the websocket (subscribe or unsubscribe)
feeds	string[]	List of the feeds that should be subscribed/unsubscribed to

NodeJS

const subscribeMsg = {
  type: 'subscribe',
  feeds: ['ticker.sfox.btcusd']
}
ws.send(JSON.stringify(subscribeMsg));

...

const unsubscribeMsg = {
  type: 'unsubscribe',
  feeds: ['ticker.sfox.btcusd']
}
ws.send(JSON.stringify(unsubscribeMsg))

Python

subscribe_msg = {
    "type": "subscribe",
    "feeds": ["ticker.sfox.btcusd"],
}

await ws.send(json.dumps(subscribe_msg))

...


unsubscribe_msg = {
    "type": "unsubscribe",
    "feeds": ["ticker.sfox.btcusd"],
}

await ws.send(json.dumps(unsubscribe_msg))