Function database

web_server/config/database.js:17–55

(envConfig)

import mongoose from 'mongoose';

export default function database(envConfig) {
    const db_options = {};

    if (Object.hasOwn(envConfig, 'mongodbSSLCA') && envConfig.mongodbSSLCA !== "") {
        db_options['tlsCAFile'] = envConfig.mongodbSSLCA;
    }

    // connect to the database
    mongoose.connect(envConfig.database, db_options);

    // Use a better Promise provider
    mongoose.Promise = global.Promise;

    // Preparing for Mongoose 7.0
    mongoose.set('strictQuery', false);

    // Acknowledge a successful connection to the console
    mongoose.connection.on('connected', function () {
        console.log('Mongoose default connection open');
    });

    // Event handler for when the connection throws an error
    mongoose.connection.on('error', function (err) {
        console.log('Mongoose default connection error: ' + err);
    });

    // Event handler for when the connection is disconnected
    mongoose.connection.on('disconnected', function () {
        console.log('Mongoose default connection disconnected');
    });

    // If the Node process ends, close the Mongoose connection
    process.on('SIGINT', function () {
        mongoose.connection.close().then(function () {
            console.log('Mongoose default connection disconnected through app termination');
            process.exit(0);
        });
    });
};