|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Loading prices...
Search...⌘K
WebSocket
Subscriptions
Learn how to subscribe and unsubscribe to real-time data channels for prices, orderbooks, and trades.
Subscribe to Channels
Subscribe to receive real-time updates for specific markets:
ws.send(JSON.stringify({
type: 'subscribe',
channel: 'prices', // Channel type
marketId: 'MARKET_ID' // Market to subscribe to
}))You'll receive a confirmation message:
{"type": "subscribed", "channel": "prices", "marketId": "..."}Unsubscribe from Channels
Stop receiving updates for a specific channel:
ws.send(JSON.stringify({
type: 'unsubscribe',
channel: 'prices',
marketId: 'MARKET_ID'
}))All subscriptions are automatically cleaned up when the WebSocket connection closes.
Available Channels
prices
Real-time price updates for YES and NO tokens. Updates on every trade or significant price change.
orderbook
Orderbook changes including new orders, fills, and cancellations. Provides bid/ask depth up to 20 levels.
trades
Individual trade notifications with price, size, and side. Useful for trade tape displays.
market
Market-level updates including status changes and resolutions. Subscribe to receive resolution notifications.
Subscription Examples
Subscribe to multiple channels for comprehensive data:
const marketId = 'YOUR_MARKET_ID'
const channels = ['prices', 'orderbook', 'trades']
channels.forEach(channel => {
ws.send(JSON.stringify({
type: 'subscribe',
channel,
marketId
}))
})
// Track subscriptions
const subscriptions = new Map()
ws.onmessage = (event) => {
const data = JSON.parse(event.data)
if (data.type === 'subscribed') {
subscriptions.set(data.channel, data.marketId)
console.log(`Subscribed to ${data.channel}`)
}
}