Jaspers Massive Market Data (Polygon.io): Market data plugin wrapping the Polygon.io/Massive REST API: bars, snapshots, options, news, financials, indicators, and four chart/watchlist views.
| 1 | import { useData, usePublish, type PanelRef } from '@jaspers-ai/sdk' |
| 2 | import './styles.css' |
| 3 | |
| 4 | interface Snap { |
| 5 | ticker: string |
| 6 | last: number | null |
| 7 | change: number | null |
| 8 | changePercent: number | null |
| 9 | volume: number | null |
| 10 | updated: string | null |
| 11 | [field: string]: unknown |
| 12 | } |
| 13 | |
| 14 | const fmt = (v: number | null | undefined, d = 2) => (typeof v === 'number' ? v.toFixed(d) : '–') |
| 15 | const vol = (v: number | null | undefined) => |
| 16 | typeof v !== 'number' ? '–' : v >= 1e9 ? `${(v / 1e9).toFixed(2)}B` : v >= 1e6 ? `${(v / 1e6).toFixed(2)}M` : v >= 1e3 ? `${(v / 1e3).toFixed(1)}K` : String(v) |
| 17 | const sign = (v: number | null | undefined) => (typeof v !== 'number' || v === 0 ? '' : v > 0 ? 'mv-up' : 'mv-down') |
| 18 | |
| 19 | export function WatchlistView({ panel }: { panel: PanelRef }) { |
| 20 | const state = useData(`workspaces/${panel.workspaceId}/panels/${panel.id}/state`) as { tickers?: string[] } | undefined |
| 21 | if (state === undefined) return <p className="mv-note">Loading…</p> |
| 22 | const tickers = (state.tickers ?? []).map((t) => t.trim().toUpperCase()).filter(Boolean) |
| 23 | if (!tickers.length) return <Empty panel={panel} /> |
| 24 | return <Table panel={panel} tickers={tickers} /> |
| 25 | } |
| 26 | |
| 27 | function Empty({ panel }: { panel: PanelRef }) { |
| 28 | usePublish(panel, { tickers: [], count: 0, error: null }) |
| 29 | return <p className="mv-note">No tickers yet. Ask for some.</p> |
| 30 | } |
| 31 | |
| 32 | function Table({ panel, tickers }: { panel: PanelRef; tickers: string[] }) { |
| 33 | const { data, error, loading, refetch } = useData('massive/snapshot', { tickers }) |
| 34 | const rows = (data ?? []) as Snap[] |
| 35 | usePublish(panel, { tickers: rows.map((r) => r.ticker), count: rows.length, error: error ?? null }) |
| 36 | |
| 37 | return ( |
| 38 | <div className="mv-wrap"> |
| 39 | <div className="mv-bar"> |
| 40 | <span className="mv-title">Watchlist</span> |
| 41 | <button className="mv-button" onClick={() => refetch()} disabled={loading}> |
| 42 | {loading ? 'Refreshing…' : 'Refresh'} |
| 43 | </button> |
| 44 | </div> |
| 45 | {error ? <p className="mv-note mv-error">{error}</p> : null} |
| 46 | {!data && !error ? <p className="mv-note">Loading…</p> : null} |
| 47 | {data ? ( |
| 48 | <table className="mv-table"> |
| 49 | <thead> |
| 50 | <tr> |
| 51 | <th>Ticker</th> |
| 52 | <th className="mv-num">Last</th> |
| 53 | <th className="mv-num">Change</th> |
| 54 | <th className="mv-num">Change %</th> |
| 55 | <th className="mv-num">Volume</th> |
| 56 | </tr> |
| 57 | </thead> |
| 58 | <tbody> |
| 59 | {rows.map((r) => ( |
| 60 | <tr key={r.ticker}> |
| 61 | <td>{r.ticker}</td> |
| 62 | <td className="mv-num">{fmt(r.last)}</td> |
| 63 | <td className={`mv-num ${sign(r.change)}`}>{fmt(r.change)}</td> |
| 64 | <td className={`mv-num ${sign(r.changePercent)}`}>{typeof r.changePercent === 'number' ? `${fmt(r.changePercent)}%` : '–'}</td> |
| 65 | <td className="mv-num">{vol(r.volume)}</td> |
| 66 | </tr> |
| 67 | ))} |
| 68 | </tbody> |
| 69 | </table> |
| 70 | ) : null} |
| 71 | </div> |
| 72 | ) |
| 73 | } |