Persisting data

Every time you restart your ExpressJS server your greetings counters disappears. How can use fix that?

You need to store the data in a database. You will start using MongoDB, with the mongoose module.

Skills required

Installing and using MongoDB

• How to install MongoDB - only do Part 1.
• How to use the MongoDB console.

JavaScript

• MongoDB - how to store & retrieve data
• How to use Mongoose to model, store, update and retrieve data on MongoDB.