imo-publications-mcp-server/dist/utils/mongodb.js

MCP server for IMO (International Maritime Organization) publications - Node.js TypeScript version

import { MongoClient } from 'mongodb';
import { logger } from './api.js';
let client = null;
let db = null;
export async function connectToMongoDB(config) {
    try {
        if (client && db) {
            logger.log('Using existing MongoDB connection');
            return { client, db };
        }
        logger.log('Connecting to MongoDB...');
        client = new MongoClient(config.mongoUri);
        await client.connect();
        db = client.db(config.dbName);
        logger.log(`Successfully connected to MongoDB database: ${config.dbName}`);
        return { client, db };
    }
    catch (error) {
        const errorMessage = error instanceof Error ? error.message : 'Unknown error';
        logger.error(`Failed to connect to MongoDB: ${errorMessage}`, error);
        throw new Error(`MongoDB connection failed: ${errorMessage}`);
    }
}
export async function getDb(config) {
    if (!db) {
        const { db: database } = await connectToMongoDB(config);
        return database;
    }
    return db;
}
export async function closeMongoDB() {
    if (client) {
        await client.close();
        client = null;
        db = null;
        logger.log('MongoDB connection closed');
    }
}
process.on('SIGINT', async () => {
    await closeMongoDB();
    process.exit(0);
});
process.on('SIGTERM', async () => {
    await closeMongoDB();
    process.exit(0);
});