connect2mongodb/lib/index.js

Dynamically Connect to MongoDB databse & close connection.

var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
import mongoose from 'mongoose';
import { config } from 'dotenv';
config();
// Just Use MONGO_URI = Your MongoURI In .env but without '' String
const userMongoDBLink = process.env.MONGO_URI || process.env.MONGODB_URI;
// Caching MongoDB connection
let cachedConnection = null;
function connect2MongoDB() {
    return __awaiter(this, arguments, void 0, function* (databaseName = undefined) {
        if (!userMongoDBLink) {
            console.error("MongoDB URI is not defined in environment variables.");
            return false;
        }
        const mongoDBUri = databaseName ? `${userMongoDBLink}${databaseName}` : userMongoDBLink;
        // If connection is already cached, return true
        if (cachedConnection) {
            console.log("Using cached MongoDB connection.");
            return true;
        }
        try {
            // Connection to MongoDB
            yield mongoose.connect(mongoDBUri);
            // Caching the MongoDB connection
            cachedConnection = mongoose.connection;
            // Connecting with the cached connection
            cachedConnection.on("connected", () => {
                console.log("MongoDB connected successfully.");
            });
            cachedConnection.on("error", (err) => {
                console.error("MongoDB connection error:", err);
            });
            return true;
        }
        catch (error) {
            console.error("Error connecting to MongoDB:", error);
            return false;
        }
    });
}
function disconnect2MongoDB() {
    return __awaiter(this, void 0, void 0, function* () {
        try {
            if (!cachedConnection) {
                console.log("No cached connection to disconnect.");
                return true;
            }
            yield mongoose.disconnect();
            cachedConnection = null;
            console.log("Disconnected from MongoDB! 👋");
            return true;
        }
        catch (error) {
            console.log(error);
            return false;
        }
    });
}
export { connect2MongoDB, disconnect2MongoDB };