New to MongoDb, I am working on a small phonebook application where the user can add and remove phonebook entries using a name and phone number. I am able to successfully add and delete entries and have the database updated successfully, but not sure how to get the number of total entries/queries in a specific MongoDB collection.
MongoDB module:
const mongoose = require('mongoose')
const url = process.env.MONGODB_URI
console.log('connecting to', url)
mongoose.connect(url)
.then(result => {
console.log('connected to MongoDB')
})
.catch((error) => {
console.log('error connecting to MongoDB:', error.message)
})
const personSchema = new mongoose.Schema({
name: String,
number: String,
}, { collection: 'phonebook' })
personSchema.set('toJSON', {
transform: (document, returnedObject) => {
returnedObject.id = returnedObject._id.toString()
delete returnedObject._id
delete returnedObject.__v
}
})
module.exports = mongoose.model('Person', personSchema)
On my MongoDB cluster, the name of my DB is ‘myFirstDatabase’ and the collection name is ‘phonebook’
Current DB looks like this:
On index.js:
app.get('/info', (request, response) => {
const date = new Date();
const numPersons = Person.countDocuments()
//Should be 2
response.send(`Today is ${date} </br>There are ${numPersons} entries in the phonebook`)
})