mongooseInit.js

const mongoose = require('mongoose');
const DB_PORT = 27017;
const DB_NAME = 'playground';
mongoose.connect(`mongodb://localhost:${DB_PORT}/${DB_NAME}`)
    .then(() => console.log('Connected to Mongo...'))
    .catch(err => console.error('Could not connect...', err))

const courseSchema = new mongoose.Schema({
    name: String,
    author: String,
    tags: [String],
    date: { type: Date, default: Date.now},
    isPublished: Boolean
})

//mongoose.model() takes two arguments, the first is the name of the model, 
//the second is the schema
const Course = mongoose.model('Course', courseSchema);