11–19 of 19 posts
Earlier quoted context omitted.
An app usually sit between the database and the user, isolating them from each other. This demo does not isolate the database, it is just a proof of concept.
Sorry, I was asking about the way the changefeed feature is meant to be used, not about this demo specifically.
I read the changefeeds post, but I don't think I understood exactly what they're for. Would clients be talking directly to the database, or would a persistent app worker block on database updates and then send this to the client?
You can see an example here of a node.js app using a changefeed to convey updates to the frontend through Socket.io: http://rethinkdb.com/blog/realtime-cluster-monitoring/
Though, of course, you can also build things other than web apps. Here's a simple IRC bot built with Go that also uses RethinkDB changefeeds: http://rethinkdb.com/blog/go-irc-bot/
Earlier quoted context omitted.
An app usually sit between the database and the user, isolating them from each other. This demo does not isolate the database, it is just a proof of concept.
Sorry, I was asking about the way the changefeed feature is meant to be used, not about this demo specifically.
The app can then also have a persistent websocket connection or whatever to the client, so you're able to get push architecture all the way from the data source to the client.
"Start the changefeed at timestamp `x`. Once it's caught up to realtime, keep feeding me new ones"
I read the changefeeds post, but I don't think I understood exactly what they're for. Would clients be talking directly to the database, or would a persistent app worker block on database updates and then send this to the client?
In a more conventional usage scenario, your application is responsible for picking up updates from the changefeed. You can see an example here of a node.js app using a changefeed to convey updates to the frontend through Socket.io: http://rethinkdb.com/blog/realtime-cluster-monitoring/ Though, of course, you can also build things other than web apps. Here's a simple IRC bot built with Go that also uses RethinkDB chan…
Is it possible to "backload" changes? "Start the changefeed at timestamp `x`. Once it's caught up to realtime, keep feeding me new ones"
The code in the demo does this by performing a separate `between` query.