Live market data

Use sdk.live to keep a pair or instrument fresh. Nutrimatic bootstraps over HTTPS, streams updates over SSE, merges locally, and (in the browser) pauses when the tab is hidden.

You do not need to invent poll intervals for the default path.

watchPair

const sub = sdk.live.watchPair({
  pair: '42-USDT',
  chart: { interval: '1h', limit: 100 },
  channels: ['spot', 'pool', 'trades', 'chart'],
  onUpdate: (snap) => {
    // snap.spot, snap.pool, snap.chart, snap.trades, …
  },
  onError: (err) => {
    console.error(err.code, err.message)
  },
})

// later
sub.unsubscribe()

Field	Meaning
`pair`	Listed `pairLabel`
`chart`	Optional — bootstrap candles (`interval`, `limit`)
`channels`	Optional SSE channels (default includes spot, pool, trades, chart)
`onUpdate`	Called after bootstrap and on each stream update
`onError`	Typed failures (`INFRASTRUCTURE_UNAVAILABLE`, …)

Returns { unsubscribe, getSnapshot() }.

watchInstrument

const sub = sdk.live.watchInstrument({
  instrumentId: 'evm:421018:instrument:42',
  onUpdate: (snap) => {
    // snap.telemetry
  },
})

Advanced (optional)

One-shot reads (easy.read.getChart, feed windows, etc.) remain for paging history, diagnostics, and custom UIs. Composition of candle/feed windows (bootstrap / after / before) is documented under Chart windows and Activity feeds — those pages are not the default live path.

Activity feeds Write operations