File size: 2,874 Bytes
927c386 3deceab 927c386 | 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 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 | const express = require('express');
const cors = require('cors');
const fs = require('fs');
const path = require('path');
const { LRUCache } = require('lru-cache');
const app = express();
const PORT = process.env.PORT || 7860;
const dbDirectory = path.join(__dirname, 'database');
if (!fs.existsSync(dbDirectory)) {
fs.mkdirSync(dbDirectory);
}
const cache = new LRUCache({
max: 500,
ttl: 1000 * 60 * 60 * 24 * 30,
allowStale: false,
updateAgeOnGet: true,
updateAgeOnHas: true,
});
function loadDatabasesIntoCache() {
const ownerDirs = fs.readdirSync(dbDirectory);
for (const owner of ownerDirs) {
const ownerPath = path.join(dbDirectory, owner);
if (fs.statSync(ownerPath).isDirectory()) {
const files = fs.readdirSync(ownerPath);
for (const file of files) {
if (path.extname(file) === '.json') {
const dbName = path.basename(file, '.json');
const filePath = path.join(ownerPath, file);
const cacheKey = `${owner}_${dbName}`;
try {
const data = fs.readFileSync(filePath, 'utf8');
cache.set(cacheKey, JSON.parse(data));
} catch (e) {
console.error(`Gagal memuat ${file} untuk owner ${owner} ke cache.`, e);
}
}
}
}
}
console.log('Semua database dari disk telah dimuat ke LRU Cache.');
}
app.use(cors());
app.use(express.json({ limit: '50mb' }));
app.get('/db/:owner/:name', (req, res) => {
const { owner, name } = req.params;
const cacheKey = `${owner}_${name}`;
const data = cache.get(cacheKey);
if (data) {
return res.status(200).json(data);
}
const filePath = path.join(dbDirectory, owner, `${name}.json`);
if (fs.existsSync(filePath)) {
try {
const fileData = JSON.parse(fs.readFileSync(filePath, 'utf8'));
cache.set(cacheKey, fileData);
return res.status(200).json(fileData);
} catch (e) {
return res.status(500).json({ success: false, message: 'Gagal membaca database.' });
}
} else {
return res.status(200).json({});
}
});
app.post('/db/:owner/:name', (req, res) => {
try {
const { owner, name } = req.params;
const data = req.body;
const cacheKey = `${owner}_${name}`;
cache.set(cacheKey, data);
const ownerDir = path.join(dbDirectory, owner);
if (!fs.existsSync(ownerDir)) {
fs.mkdirSync(ownerDir, { recursive: true });
}
const filePath = path.join(ownerDir, `${name}.json`);
fs.writeFileSync(filePath, JSON.stringify(data, null, 2));
res.status(200).json({ success: true, message: 'Database berhasil disimpan.' });
} catch (error) {
res.status(500).json({ success: false, message: 'Terjadi kesalahan internal.' });
}
});
app.listen(PORT, () => {
loadDatabasesIntoCache();
console.log(`Server database multi-tenant berjalan di port ${PORT}.`);
}); |