mohanki/ck_qr_nextjs_node_redis_postgres
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feat: add SVG/PNG download options, track geolocation from CF headers, and fix analytics pie charts by parsing counts as integers

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This commit is contained in:
Mohan Ki
2026-07-27 17:00:54 +05:30
parent fba969dd55
commit 9aaf94625a
8 changed files with 163 additions and 38 deletions
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api/routes/analytics.js
+15 -6
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@@ -22,8 +22,8 @@ router.get('/:qrCodeId', verifyToken, async (req, res) => {
return res.status(403).json({ error: 'Unauthorized or QR code not found' });
}
// Get total scans
const totalQuery = await pgPool.query('SELECT COUNT(*) as total FROM qr_scans WHERE qr_code_id = $1', [qrCodeId]);
// Get total scans and unique scanners
const totalQuery = await pgPool.query('SELECT COUNT(*) as total, COUNT(DISTINCT ip_address) as unique_scanners FROM qr_scans WHERE qr_code_id = $1', [qrCodeId]);
// Get OS breakdown
const osQuery = await pgPool.query(
@@ -37,6 +37,12 @@ router.get('/:qrCodeId', verifyToken, async (req, res) => {
[qrCodeId]
);
// Get Country breakdown
const countryQuery = await pgPool.query(
'SELECT country, COUNT(*) as count FROM qr_scans WHERE qr_code_id = $1 GROUP BY country ORDER BY count DESC',
[qrCodeId]
);
// Get Scans over time (last 7 days grouped by date)
const timeQuery = await pgPool.query(
`SELECT DATE(scanned_at) as date, COUNT(*) as count
@@ -46,11 +52,14 @@ router.get('/:qrCodeId', verifyToken, async (req, res) => {
[qrCodeId]
);
// Parse string counts from PG back to integers for Recharts
res.json({
totalScans: parseInt(totalQuery.rows[0].total),
osBreakdown: osQuery.rows,
deviceBreakdown: deviceQuery.rows,
timeline: timeQuery.rows
totalScans: parseInt(totalQuery.rows[0].total) || 0,
uniqueScanners: parseInt(totalQuery.rows[0].unique_scanners) || 0,
osBreakdown: osQuery.rows.map(r => ({ ...r, count: parseInt(r.count) })),
deviceBreakdown: deviceQuery.rows.map(r => ({ ...r, count: parseInt(r.count) })),
countryBreakdown: countryQuery.rows.map(r => ({ country: r.country || 'Unknown', count: parseInt(r.count) })),
timeline: timeQuery.rows.map(r => ({ ...r, count: parseInt(r.count) }))
});
} catch (err) {
console.error(err);