mst-scm-server-core/db.js

MST backend project-ийн core project

const { MongoClient } = require("mongodb");

const MY_CLIENT = new MongoClient(process.env.MONGODB_URL, {
  useUnifiedTopology: true,
  useNewUrlParser: true,
  keepAlive: true,
  connectTimeoutMS: 300000,
  socketTimeoutMS: 300000,
  // poolSize: 5,
  minPoolSize: 3,
  maxPoolSize: 10,
});

// const connection = {};

MY_CLIENT.connect((err) => {
  console.log("mongo success connected", err);
  //   const db = MY_CLIENT.db("scm");
});

module.exports = async (dbName) => {
  try {
    if (MY_CLIENT && MY_CLIENT.topology && MY_CLIENT.topology.isConnected()) {
      //connection.isConnected
      return MY_CLIENT;
    }
    MY_CLIENT.connect();
    // connection.isConnected = true;
    return MY_CLIENT;
  } catch (e) {
    throw e;
  }
};