moja VS postgrest

I want sum types.

I want a statically-typed way of constructing composable queries that follow SQL rather than reinvent a different thing. It doesn't have to be the same syntax but it has to be the same structuring.

I started writing one[0] and stopped before doing all the boilerplate code generation, having moved on from the JVM ecosystem for the time being. One thing it does is treat most things like sets so we don't end up with N+1 queries. Another trick it uses is collapsing constant expressions via an expression evaluation library[1].

[0] https://github.com/karmakaze/safeql

[1] https://github.com/karmakaze/moja

Over the years, I've written many apps and utilities for myself or others (that didn't end up get used). These are the interesting ones I remember. Many not quite complete/usable. Other than hackerer.news none of them are 'up' and running. Some have and others haven't been published as opensource.

- https://hackerer.news HN viewer (source[0]): I use daily so I can see today's top stories in reverse chronological order with mainstream topics sorted to the bottom.

- qwickly[1] keyboard layout: I use all the time as an easier to learn and more comfortable to type than Colemak/Tarmak

- safeql[2]: Java type-safe SQL expression composer that reduces constant expressions and eliminates N+1 queries loading associations by always operating on set relation or array of models.

- moja[3]: Composable computation pipelines for Java: Async, Lazy, Option, Try, Result, Multi (List), Stated, Reader, Logger, Writer.

- gitgrep.com[4] Opensource SaaS version of etsy/houndd (now called hound-search).

- statuspages.me: Status page aggregator with dynamic javascript for scraping each source using selector expressions.

- movies to watch aggregator: with links to sources to watch. It was hard then to get 3rd party deep links into streaming sites so included some torrent links. Got a DMCA phone call, so took it down. Combined thumbnails, summaries, actors(?), imdb ratings, links.

- java2cpp: Translate a moderately sized java app with test suite to c++, not 100% required final manual fixups.

- swift2java (or maybe it was java2swift, it's fuzzy now): translate Swift to Java obviously, using ANTLR4. Not 100% required final manual fixups.

- gui2log: to make an ASCII rendition of on-screen GUI widgets into an application log file when form submitted, so users couldn't complain that they saw X, but got Y.

- some basic stats/ML algorithms: k-nearest neighbour, RNN back-propagation, etc?

- Java in-memory DB: Small SQL-like memory tables with indexing/searching.

- wwwsqldesigner: This exists as opensource and I extended it to infer foreign key relationships based on naming conventions used in a MySQL schema. It was great for zooming around a large ERD.

- tracelog: combination of microservices parent/child span logging and generated high level events shown as a sequence diagram. Integrated with Loggly for full/verbose logs of selected high-level events.

- pcl2bmp downscaler: Reduce high resolution HP LaserJet (PCL5) printed to file to lower resolution bitmap pages for screen display (before retina DPI was common). It aimed to shrink same-color areas and preserve black/white transitions while reducing.

[0] https://gitlab.com/karmakaze/hackerer-news

[1] https://github.com/qwickly-org/Qwickly

[2] https://github.com/karmakaze/safeql

[3] https://github.com/karmakaze/moja

[4] https://github.com/gitgrep-com/gitgrep

Sure, SafeQL[0] SQL library. It's been sitting in a close but not enough to promote state for a while. The main thing I wanted was to have generation of the bindings to existing DB schema. I also want to combine using Moja[1] datatypes for uniform handling of single/multi, normal/async, and errors.

[0] https://github.com/karmakaze/safeql

[1] https://github.com/karmakaze/moja

I made a similar thing for Java moja Options as needed other projects. It sort-of works but it's not great.

hey hn, supabase ceo her

we just announced GA, after ~4 years of beta. for those who don't know: supabase is a postgres hosting company. we also host other open source "backend" tools that make it easy to get started with postgres (tools like PostgREST for auto-generate APIs [0])

we owe a lot to the HN community. you launched us 4 years ago [1], when we were just a few developers. since then HN has been a staple in our journey, one of the best sources of product feedback [2]

the GA badge is mostly to signify organizational readiness. we're at a stage where we can take any profile of customer. we have a support team that works 24/7, and a success team that will help customers improve their postgres usage. we released our Index Advisor [3] yesterday, and we'll be releasing a few more products this week that helps customer with performance and security.

on a personal note: i read HN most days, and love going through the ShowHN's to see what devs are building. thanks for being an awesome community and my favorite place to lurk on the internet. i'll stick around to answer any questions

[0] PostgREST: https://postgrest.org

[1] Launch: https://news.ycombinator.com/item?id=23319901

[2] HN journey: https://hn.algolia.com/?dateRange=all&page=0&prefix=false&qu...

[3] Index Advisor: https://news.ycombinator.com/item?id=40028111

If you use PostgreSQL and are proficient with using its row-level security feature, you can choose from several tools/services built above RLS, including Supabase, PostgREST, and PostGraphile. They all provide a way to expose database CRUD as a web API, assuming you've configured the RLS rules to properly secure the access.

wget 'https://github.com/PostgREST/postgrest/releases/download/v11.2.0/postgrest-v11.2.0-linux-static-x64.tar.xz'

SupaBase is entirely based upon PostgREST. In fact, PostgREST is arguably 49% of their value proposition according to their own website. The other 49% is PostgreSQL. PostgreSQL of course is a super mature database, and some would argue the best RDBMS on the planet, so let's ignore that part for a moment, and consider it a mature thing and move on to PostgREST.

You don't need this PHP snippet:

To get the same functionality without the extra step, simply use PostgREST [1]

[1] https://postgrest.org/

PostgREST is a standalone web server that turns your PostgreSQL database into a RESTful API using the database's structural constraints and permissions to define the API's endpoints and operations. In this tutorial, you will create a simple note-taking app by leveraging PostgREST to construct a RESTful API for the app and using htmx to deliver HTML content.

You might find some info in the docs of PostgREST [1] or in the previous discussions on HN about it [2].

For the versioning, I just have a git repo where I keep every role, schema, table, view, function, trigger, etc. definitions. Every time I change something in the database I first change it in the git repo too to have an history.

[1] https://postgrest.org

[2] https://hn.algolia.com/?q=postgrest

Don't know if you would call this a "program" but PostgREST is written is Haskell too.

https://github.com/PostgREST/postgrest