Real-time event subscriptions around SQLite API

[maietta]

I would love to see a thin layer that enables real-time event subscriptions API around SQLite for listening to changes on the database for different types of actions such as inserts or updates, deletes, watching changes on a specific record, etc.

I currently leverage Pocketbase for a local instance of a real-time database that uses SQLite, but to have this kind of functionality as a native feature of Bun would be amazing, if it makes sense.

Curious of this feature idea would be a good one for the Bun project. I don't believe it would be very difficult and if I had some extra time, I might consider seeing if I could get a basic implementation working. I've not written anything in Rust yet.

Let's discuss.

[maietta]

Update:

A Twitter follower (PavitraGolchha) kindly pointed out to me that SQLite has a Date Change Notification that could be exposed via Bun runtime.

https://www.sqlite.org/c3ref/update_hook.html

[truongan07]

real-time event subscriptions API around SQLite for listening to changes on the database for different types of actions such as inserts or updates, deletes, watching changes on a specific record, etc.

You want to log info for monitoring management or what ?

[maietta]

As it turns out, SQLite now offers the ability register a callback to listen for actions taken on the database.

Imagine a multi-player game where each-other's health, movements, scores and other data are updated as they happen. You wouldn't ever want to "poll" the database at a set interval to see what the updates are. No, you'd need real-time streaming of that information.

I have many use-cases including updates to articles, a content management system in development, a game I'm working on, a radio station website network and notifying users of changes to any listings they are monitoring as they browse a realty websites.

The choice to use SQLite is because it's robust enough and can live with the website. Most of my projects need only a very small database.

[truongan07]

I don't think SQLite is a small database because i use this database to record information of farms in huge data. It reads data faster than PostgreSQL or MySQL.

[maietta]

No offense, but I think English is not your first language.

Let's not get distracted from the point here. The goal would be to extend the already-existing data notification service hook(s) to the Bun API.

The issue of SQLite's size or performance is not being called into question or up for discussion.