index.js

'use strict';

// Requiring the Dynamoose NPM package
var dynamoose = require('dynamoose');

// Setting our table name prefix to "example-"
dynamoose.setDefaults({
	prefix: 'example-',
	suffix: ''
});

// Creating a new Dynamomoose model, with 3 attributes (id, name, and ttl), the name of our table is "example-Cat" (due to our prefix default set above, and our suffix being an empty string)
var Cat = dynamoose.model('Cat', {
	id: Number,
	name: String
}, {
	expires: {
		// ttl (time to live) will be set to 1 day (86,400 seconds), this value must always be in seconds
		ttl: 1 * 24 * 60 * 60,
		// This is the name of our attribute to be stored in DynamoDB
		attribute: 'ttl'
	}
});

// Creating a new instance of our "Cat" model
var garfield = new Cat({id: 1, name: 'Fluffy'});

// Saving our new cat to DynamoDB
garfield.save()
.then(function () {
	// Getting our cat from DynamoDB after it has completed saving
	return Cat.get(1);
})
.then(function (fluffy) {
	// After getting our cat from DynamoDB we print the object that we received from DynamoDB
	console.log(JSON.stringify(fluffy, null, ' '));
	
	/*
	{
		"id": 3,
		"name": "Fluffy",
		"ttl": "2017-05-28T01:35:01.000Z"
	}
	*/
});