kernel.js

const mongoose = require("mongoose");

const { dbUri, PORT } = require("./utils/config");

module.exports = (app) => {
  mongoose
    .connect(dbUri, {
      useNewUrlParser: true,
      useUnifiedTopology: true,
      useFindAndModify: false,
      useCreateIndex: true,
    })
    .then((res) =>
      app.listen(PORT, () =>
        console.log("Web application started at port: " + PORT)
      )
    )
    .catch((err) => console.log(err));
};