To see all this in action, let's get right on it by creating our first collection.

We create a file called collections.js inside our my-meteor-blog folder. We need to create it in the root folder so that it will be available on both the client and the server. Now let's add the following line of code to the collections.js file:

Posts = new Mongo.Collection('posts');

This will make the Posts variable globally available, as we haven't used the var keyword, which would restrict it to the scope of this file.

Mongo.Collection is the API used to query the database and it comes with the following basic methods: