Amazon price crawler and monitor

If you're selling (or buying) something at amazon, it'll be useful to know the historical price trends.

This is also a good startpoint for web crawling and js visualization. I think the front-end library management (with npm) in this repo is interesting too.

Screenshot

Deployment

# dependencies
sudo apt-get install phantomjs  # necessary for data crawling and analysis
npm install

# deploy the crawler
# edit the crawl.sh according to your path
vim crawl.sh
# deploy to crontab
# example crontab configuration:
# 0 * * * * /path/to/repo/crawl.sh 
crontab -e

# launch!
coffee app

An example price.txt is provided for quick visualizaiton preview. You may want to remove it before crawling your own data.

Interesting fact

An interesting fact of this repo is, every file has a different extension name/language. :)