HN user

ecksor

25 karma

http://simperium.com

Posts0
Comments16
View on HN
No posts found.
Show HN: Simperium, a realtime data layer 14 years ago

Thanks saurik! Yeah that's right, we've tried to make it as easy as we can for developers to use. One of our goals has been to let developers be able to work with data as they do normally if it were just local, while we handle figuring out whats changed.

0ThreadHN
Show HN: Simperium, a realtime data layer 14 years ago

We provide endpoints for you to monitor all changes across all users - using this you can run a service that could validate each piece of data as it is changed, making updates if necessary, or do things like mirror the entire datastore.

0ThreadHN
Show HN: Simperium, a realtime data layer 14 years ago

Correct, each object is on a separate timeline for purposes of operational transform. If both clients are connected at the time the changes are made, then it shouldnt be possible to see the second change before the first. We keep an ordered history of all changes to all objects, though for efficiency, if a client that wasn't present when changes were initially made syncs, changes to multiple objects may appear in a different order. For example, a modification to object A, then object B, then object A again, would appear in the correct order for all clients when those changes are made. If a different client then syncs and asks for what's changed, we may group the two changes to object A such that there would appear to be two changes, a change to B then a change to A.

There is currently limited support for keeping a subset of data synchronized (we have plans to improve this) - if you're using the client libraries in an app, we've focused on supporting the common case of keeping all the data per bucket for a user synced. In the case of keeping all data mirrored to a backend, we provide an endpoint per bucket that you can listen to all changes for all users so you can keep the entire data store synchronized.

0ThreadHN
Show HN: Simperium, a realtime data layer 14 years ago

Yes definitely, you can update directly using the bucket.update() method, and pass in an id and the data object. The better way would be to implement the 'local' callback to return the data, then just call bucket.update(id), and the library will call your 'local' method to retrieve the current state for that id. You can read about the 'local' callback here: https://simperium.com/docs/reference/js/#local

For auth, we'll be adding cross-origin support for https://auth.simperium.com, up till now we've been focused on supporting apps with existing backends which generally use the HTTP API to generate auth tokens from their server.

0ThreadHN
Show HN: Simperium, a realtime data layer 14 years ago

1. Server side is all python (combination of tornado/gevent/zeromq)

2. We've experimented with it, we'll likely add it as an option in the future since there may be security concerns depending on the app.

0ThreadHN
Stealth Payment Startup Stripe Backed By PayPal Founders 15 years ago

We (Simplenote) have been using Stripe since summer also, it's awesome. At least an order of magnitude easier than Paypal api and the merchant account process was completely transparent, we actually have no idea what's involved with getting a merchant account because they just handle it all and payments show up in our bank account.

0ThreadHN