willcode2surf / couchpubtato

use Node.js to make CouchDB eat feeds like potato chips

Feed archiving using Node.js and CouchDB

This project evolved from a CouchApp that stored PubSubHubbub notifications in CouchDB into a Node.js app that actively fetches feeds and stores them in Couch. Original concept by @tylergillies (Tyler Gillies)

still a work in progress!

Architecture: a 'parent' node process (couchpubtato.js) monitors a database on a CouchDB for any documents that have both a "feed" and "db" attribute. Anytime it sees a matching document it will spawn a worker that will fetch the url contained within the "feed" attribute and save each item into the local CouchDB specified in the "db" field.

Currently it only works on RSS/ATOM feeds but it is using JSDOM which is capable of HTML parsing so in a future version you will be able to include a javascript function to execute on the fetched DOM.

To try out:

# install latest node + npm
# start couchdb
# clone this repo
npm install request
npm install jsdom
git submodule init
git submodule update
ruby create_test_data.rb http://admin:password@localhost:5894
node couchpubtato.js http://localhost:5984/feeds

Then look in the 'articles' database on Couch :)

License

The MIT License

Copyright (c) 2010 Max Ogden and Tyler Gillies

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.