aws-price-grabber

Capture AWS pricing as JSON

Based on a Stack Overflow answer

Description

AWS does not have an API for pricing. Most of the pricing pages however load their data via jsonp. Those jsonp endpoints can and do change. This project will scan a pricing page for the jsonp endpoints it relies on then process those endpoints into JSON.

For each endpoint (pricemap) aws-price-grabber will emit an event allowing the consuerm to parse or store the raw data as they see fit.

Since AWS does not support pulling prices this way, aws-price_grabber will not attempt to manipulate, normalize, or change data in any way. That will be the job of the consming application/module. This will hopefully keep any breaking changes made by AWS to a minimum.

Services that work

• ec2
• elasticloadbalancing
• s3
• glacier
• ebs
• storagegateway
• rds
• elasticache
• dynamodb
• redshift
• sqs
• sns
• swf
• cloudsearch
• elastictranscoder
• elasticmapreduce
• kinesis

Services that DO NOT work

The following services embed pricing as HTML and do not use jsonp.

• ses
• directconnect
• vpc
• lambda
• cloudfront
• route53
• appstream

Use

var awsPriceGrabber = require('awsPriceGrabber-ec2');

// grab all services
var grabber = awsPriceGrabber.requestPricing;
grabber.on('pricemap:received',doSomething);
grabber.on('end',finishSomething);

// grab specific services
var grabber2 = awsPriceGrabber.requestPricing({services:['ec2']});;
...

Scripts

request_all.js

Script that dumps all pricing in JSON to STDOUT

> ./scripts/request_all.js

count_price_endpoints.js

Counts the total number of jsonp endpoints that can be collected

> ./scripts/count_price_endpoints.js

Other useful ec2 pricing projects

• https://github.com/erans/ec2instancespricing
• https://github.com/CloudHealth/amazon-pricing