Spaces:
Sleeping
Sleeping
File size: 2,808 Bytes
14356bb | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 | /**
* Genesis AI — Price Elasticity Intelligence (React)
* Express server for Hugging Face Spaces deployment
* Serves the Vite-built React app + proxies /api/data/* from output/ JSONs
*/
const express = require('express')
const path = require('path')
const fs = require('fs')
const app = express()
const PORT = process.env.PORT || 7860
const ROOT = __dirname
const DIST_DIR = path.join(ROOT, 'dist')
const OUTPUT_DIR = path.join(ROOT, 'output')
app.use(express.json())
// ── Health check (Hugging Face pings this) ────────────────────────────────
app.get('/health', (req, res) => {
res.json({ status: 'ok', timestamp: new Date().toISOString() })
})
// ── API: serve individual JSON artefacts ──────────────────────────────────
const JSON_MAP = {
models: 'models.json',
recs: 'recs_full.json',
trend: 'trend.json',
ms: 'ms.json',
vol_salience: 'vol_salience.json',
val_share: 'val_share.json',
freq_anchors: 'freq_anchors.json',
ppa_mt: 'ppa_mt.json',
ppa_tt: 'ppa_tt.json',
comp_ms: 'comp_ms.json',
vtm: 'vtm.json',
interaction: 'interaction.json',
growth_decomp:'growth_decomp.json',
pgi: 'pgi.json',
stats: 'stats.json',
recs_full: 'recs_full.json',
}
app.get('/api/data/:key', (req, res) => {
const fname = JSON_MAP[req.params.key]
if (!fname) return res.status(404).json({ error: 'Unknown data key' })
const fpath = path.join(OUTPUT_DIR, fname)
if (!fs.existsSync(fpath)) {
return res.status(404).json({ error: `File not found: ${fname}` })
}
res.setHeader('Content-Type', 'application/json')
res.sendFile(fpath)
})
// ── API: status ────────────────────────────────────────────────────────────
app.get('/api/status', (req, res) => {
const files = Object.entries(JSON_MAP).map(([key, fname]) => ({
key,
file: fname,
exists: fs.existsSync(path.join(OUTPUT_DIR, fname)),
}))
res.json({ artefacts: files })
})
// ── Serve React build (must be last) ─────────────────────────────────────
app.use(express.static(DIST_DIR))
app.get('*', (req, res) => {
const indexPath = path.join(DIST_DIR, 'index.html')
if (fs.existsSync(indexPath)) {
res.sendFile(indexPath)
} else {
res.status(503).send('React build not found. Run: npm run build')
}
})
app.listen(PORT, '0.0.0.0', () => {
console.log(`Genesis AI React App — http://0.0.0.0:${PORT}`)
console.log(`Output dir: ${OUTPUT_DIR}`)
})
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