generic-repository/dist/mongodb_connect.js

Generic repository pattern implementation for node.js. Currently supports mongo and in-memory(testing) databases.

"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    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) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
Object.defineProperty(exports, "__esModule", { value: true });
const mongodb_1 = require("mongodb");
// Singleton, in order to make sure repositories share a connection/db
class MongoConnect {
    constructor() { }
    static get Instance() {
        return this._instance || (this._instance = new this());
    }
    connect(connectionString = undefined, database = undefined) {
        return __awaiter(this, void 0, void 0, function* () {
            let dbUri = connectionString || process.env.DB_URI;
            let dbName = database || process.env.DB_NAME;
            if (process.env.NODE_ENV === 'test' && process.env.DB_URI_TEST) {
                console.log('Running in ', process.env.NODE_ENV, ' environment');
                dbUri = process.env.DB_URI_TEST;
                dbName = process.env.DB_NAME_TEST;
            }
            if (!connectionString) {
                console.warn('No connectionString found! Make sure you either pass it to the mongo connect, or have it defined in your enviroment settings(DB_URI)');
            }
            else if (!database) {
                console.warn('No database specified! Make sure you either pass it to the mongo connect, or have it defined in your enviroment settings(DB_NAME)');
            }
            console.log(this, 'Connecting to database..');
            return this._connection = mongodb_1.MongoClient.connect(dbUri).then((ready) => {
                console.log('Connected!');
                this._readyConnection = ready;
                return this._db = ready.db(dbName);
            }).catch(error => console.log('Failed to connect to', dbUri, error));
        });
    }
    get connection() {
        return this._connection;
    }
    get db() {
        return this._db;
    }
    gracefulExit() {
        this._readyConnection && this._readyConnection.close();
    }
}
exports.MongoConnect = MongoConnect;
exports.MongoConnection = MongoConnect.Instance;
exports.default = exports.MongoConnection;