43 lines
1.6 KiB
JavaScript
43 lines
1.6 KiB
JavaScript
// backend/db/mongoose.js
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// Connects the backend to MongoDB.
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// The backend is READ-ONLY — all writes are done by the proxy server.
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// MongoDB URI is provided via MONGODB_URI environment variable.
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const mongoose = require('mongoose');
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const path = require('path');
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require('dotenv').config({ path: path.join(__dirname, '../../.env.local') });
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const MONGODB_URI = process.env.MONGODB_URI || 'mongodb://127.0.0.1:27017/backone_dpi';
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async function connectDB() {
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if (mongoose.connection.readyState >= 1) return; // already connected
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const MAX_RETRIES = 5;
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const RETRY_DELAY = 5000;
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for (let attempt = 1; attempt <= MAX_RETRIES; attempt++) {
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try {
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console.log(`[MongoDB] Connecting... (attempt ${attempt}/${MAX_RETRIES})`);
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await mongoose.connect(MONGODB_URI, {
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serverSelectionTimeoutMS: 10000,
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connectTimeoutMS: 10000,
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});
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console.log('[MongoDB] ✓ Connected successfully');
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const { logCapacityStats } = require('./capacityTracker');
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logCapacityStats('[MongoDB]').catch(err => console.warn('[MongoDB] Capacity log failed:', err.message));
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return;
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} catch (error) {
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console.error(`[MongoDB] ✗ Attempt ${attempt} failed: ${error.message}`);
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if (attempt < MAX_RETRIES) {
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console.log(`[MongoDB] Retrying in ${RETRY_DELAY / 1000}s...`);
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await new Promise(resolve => setTimeout(resolve, RETRY_DELAY));
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}
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}
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}
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console.error('[MongoDB] All connection attempts failed. Backend cannot serve dashboard data.');
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// Do NOT exit — allow health check endpoint to remain available
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}
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module.exports = connectDB;
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