mongodb-connection-lib/lib/config/database.js

A comprehensive MongoDB connection library with CRUD operations, connection pooling, and model abstraction

const { MongoClient } = require("mongodb");
require("dotenv").config();

class DatabaseConfig {
  constructor() {
    this.uri = process.env.MONGODB_URI;
    this.dbName = process.env.MONGODB_DB_NAME;
    this.options = {
      minPoolSize: parseInt(process.env.MONGODB_MIN_POOL_SIZE) || 5,
      maxPoolSize: parseInt(process.env.MONGODB_MAX_POOL_SIZE) || 10,
      serverSelectionTimeoutMS:
        parseInt(process.env.MONGODB_SERVER_SELECTION_TIMEOUT) || 5000,
      socketTimeoutMS: 45000,
      connectTimeoutMS: 10000,
      heartbeatFrequencyMS: 10000,
      retryWrites: true,
      retryReads: true,
    };
  }

  getConnectionString() {
    return this.uri;
  }

  getOptions() {
    return this.options;
  }

  getDatabaseName() {
    return this.dbName;
  }
}

module.exports = new DatabaseConfig();