@tmlmobilidade/connectors/dist/src/mongo.js

This package provides pre-made database connectors to streamline development and reduce boilerplate. By using these connectors, you can avoid re-implementing controller classes every time, ensuring consistency and saving development time.

/* * */
import { MongoClient } from 'mongodb';
/* * */
export class MongoConnector {
    /**
     * Get the MongoClient instance.
     */
    get client() {
        return this._client;
    }
    _client;
    constructor(uri, options) {
        this._client = new MongoClient(uri, options);
        this._client.on('close', () => {
            console.warn('MongoDB connection closed unexpectedly.');
        });
        this._client.on('reconnect', () => {
            console.log('MongoDB reconnected.');
        });
    }
    /**
     * Aggregates data from a collection.
     */
    async aggregate(collection, pipeline) {
        return collection.aggregate(pipeline).toArray();
    }
    /**
     * Connect to MongoDB and return the database instance.
     */
    async connect() {
        if (!this._client) {
            throw new Error('MongoClient not initialized');
        }
        try {
            await this._client.connect();
            return this._client;
        }
        catch (error) {
            throw new Error('Error connecting to MongoDB', { cause: error });
        }
    }
    /**
     * Create a new Db instance sharing the current socket connections.
     *
     * @param dbName - The name of the database we want to use. If not provided, use database name from connection string.
     * @param options - Optional settings for Db construction
     */
    db(dbName, options) {
        return this._client.db(dbName, options);
    }
    /**
   * Close the MongoDB connection.
   */
    async disconnect() {
        if (this._client) {
            await this._client.close();
            console.log('⤷ Disconnected from MongoDB.');
        }
    }
    /**
     * Get a specific collection by name.
     * @param db - The database instance.
     * @param collectionName - The name of the collection to retrieve.
     * @returns The collection instance.
     */
    async getCollection(db, collectionName) {
        return db.collection(collectionName);
    }
    /**
     * Watches a collection for changes.
     */
    async watch(collection) {
        return collection.watch();
    }
}