One of CouchDB's most noteworthy features is the _changes API. With it, we can view all the alterations to a database via HTTP.
For instance, to see all the changes made to our quotes database, we can make a GET request to http://localhost:5984/quotes/_changes. Even better, if we want to hook up to a live stream, we need to add the query parameter ?feed=continuous.
Cradle provides an attractive interface to the _changes API, which we'll explore in this recipe.
We'll need a functioning CouchDB database and a way to write to it. We can use the quotes.js example used in Storing data to CouchDB with Cradle, so let's copy that into a new directory and then create a file alongside it named quotes_stream.js.
If we followed the Creating an admin user and Locking all modifying operations to an admin user sections of the previous recipe's There's more… section, we will need to modify the second line of quotes.js in order to continue to insert...