conexion a la base de datos

const mongoose = require('mongoose');

mongoose.connect('mongodb://localhost/mongo-exercises')
    .then(() => console.log('Connected to MongoDB...'))
    .catch(err => console.error('Could not connect to MongoDB...', err));

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

async function getCourses() {
    return await Course
    .find({ isPublished: true, tags: 'backend' })
    .sort({ name: 1 })
    .select({ name: 1, author: 1 });
}

async function run() {
    const courses = await getCourses();
    console.log(courses);
}

run();