realtime
absurd-sql
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realtime | absurd-sql | |
---|---|---|
54 | 24 | |
6,460 | 4,050 | |
1.3% | - | |
9.0 | 2.5 | |
2 days ago | 9 months ago | |
Elixir | JavaScript | |
Apache License 2.0 | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
realtime
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A Technical Dive into PostgreSQL's replication mechanisms
You can LISTEN/NOTIFY. Or you can use logical replication and a custom subscriber.[1] Supabase uses the latter.[2]
[1]: https://www.postgresql.org/docs/current/logical-replication....
[2]: https://github.com/supabase/realtime
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Supabase Studio: AI Assistant and User Impersonation
Supabase Realtime is great for building collaborative applications. You can receive database changes over websockets, store and synchronize data about user presence, and broadcast any data to clients via "channels".
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Unpacking Elixir: Observability
We use :telemetry to collect usage data per tenant for Supabase Realtime.
We do this for rate limiting but it also makes it very easy for us to attach a listener (https://github.com/supabase/realtime/blob/main/lib/realtime/...) which ships these (per second) aggregates to BigQuery (via Logflare), which then the billing team can aggregate further to display and actually bill people with.
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All the ways to capture changes in Postgres
Yo :D This is what Supabase Realtime does!
https://github.com/supabase/realtime
Spin up a Supabase database and then subscribe to changes with WebSockets.
You can play with it here once you have a db: https://realtime.supabase.com/inspector/new
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Supabase Local Dev: migrations, branching, and observability
Every project is a Postgres database, wrapped in a suite of tools like Auth, Storage, Edge Functions, Realtime and Vectors, and encompassed by API middleware and logs.
- Sync client state globally over WebSockets in Realtime
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Writing a chat application in Django 4.2 using async StreamingHttpResponse
Where can I learn more about this? I've been thinking of trying to integrate Supabase Realtime (https://github.com/supabase/realtime) into my Django app (without the rest of Supabase), but I'd also like to keep things even simpler if possible.
Also, what was the reason not to go with Gevent?
- Supabase Realtime โ Broadcast, Presence, and Postgres Changes via WebSockets
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How to Listen to Database Changes Using Postgres Triggers in Elixir
I believe #2 was the main driver for the supabase team to build their real-time component: https://github.com/supabase/realtime
Background/announcement: https://supabase.com/blog/supabase-realtime-multiplayer-gene...
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How To Kill A Fly With A Shotgun
As a minor note, one of the linked articles talks about having used RethinkDB for its changefeeds and I made a mental note a bit back that if I ever want that supabase's realtime ( https://github.com/supabase/realtime ) provides something rather like that atop Postgres and I should try that before doing anything clever.
absurd-sql
- Absurd-SQL: sqlite3 in ur indexeddb (hopefully a better back end soon)
- What If OpenDocument Used SQLite?
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WASM SQL database recommendations wanted
Not really, but I'm aware of absurd-sql. Note that this requires IndexedDB and thus a browser environment.
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Best local database that works on all platforms including web?
I don't need SQL capabilities, so I didn't look into those options (there's also absurd-sql, which ports sqlite to the browser on top of IndexedDB).
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SQLite WASM in the Browser Backed by the Origin Private File System
Ironically I was just about to drop in absurd-sql [1] to a project, which uses indexeddb to back SQLite. This seems better.
[1] https://github.com/jlongster/absurd-sql
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Irmin in the Browser (OCaml/MirageOS)
There is also absurd-sql that is sqlite3 in wasm using IndexDB as storage and itโs faster than IndexDB itself
[1]: https://github.com/jlongster/absurd-sql
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Postgres WASM by Snaplet and Supabase
Offline data: running it in the browser for an offline cache, similar to sql.js or absurd-sql.
- WordPress WASM
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Learn PWA
We are very close to having WASM SQLite with persistence in the web platform. Until now SQLite compiled to WASM was in memory and you had to write the whole database out as a binary array to save changes. There is absurd-sql (https://github.com/jlongster/absurd-sql), which builds a virtual file system on top of IndexedDB for sqlite, its incredible, but a bit of an ugly hack.
However, the new file-access apis (https://developer.mozilla.org/en-US/docs/Web/API/File_System...) that are landing in browsers will fix this. One of the things it does is enable very efficient block level read/write access to a privet sandboxed filesystem for the websites origin, perfect for persistent sqlite. There is more here: https://web.dev/file-system-access/#accessing-files-optimize...
- Learn Postgres at the Playground
What are some alternatives?
supabase - The open source Firebase alternative.
lovefield - Lovefield is a relational database for web apps. Written in JavaScript, works cross-browser. Provides SQL-like APIs that are fast, safe, and easy to use.
debezium - Change data capture for a variety of databases. Please log issues at https://issues.redhat.com/browse/DBZ.
crdt-example-app - A full implementation of CRDTs using hybrid logical clocks and a demo app that uses it
Appwrite - Build like a team of hundreds_
dolt - Dolt โ Git for Data
blockscout - Blockchain explorer for Ethereum based network and a tool for inspecting and analyzing EVM based blockchains.
donutdb - Store and query a sqlite db directly backed by DynamoDB.
litestream - Streaming replication for SQLite.
localForage - ๐พ Offline storage, improved. Wraps IndexedDB, WebSQL, or localStorage using a simple but powerful API.
Hasura - Blazing fast, instant realtime GraphQL APIs on your DB with fine grained access control, also trigger webhooks on database events.
LevelDB - LevelDB is a fast key-value storage library written at Google that provides an ordered mapping from string keys to string values.