Alex Anderson alxndrsn

Anatomy of the CouchDB changes feed

I just spent a lot of time finally understanding CouchDB's changes feed, so I thought I'd do a short writeup here.

Let's imagine the following changes to the database. There are two documents, A and B:

_id	seq	rev	winner?

	#!/bin/bash
	# Don't forget to `unset HISTFILE` before using this script ;¬)
	#
	# Check your password against Troy Hunt's massive password database.
	# https://www.troyhunt.com/ive-just-launched-pwned-passwords-version-2/

	full_hash="$(node -e "
	const crypto = require('crypto');
	const shasum = crypto.createHash('sha1');
	shasum.update('${@}');