postgres-websockets
duplo
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postgres-websockets | duplo | |
---|---|---|
1 | 2 | |
338 | 378 | |
- | - | |
7.2 | 0.0 | |
5 months ago | almost 2 years ago | |
Haskell | Go | |
BSD 3-clause "New" or "Revised" License | MIT License |
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postgres-websockets
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PostgREST – Serve a RESTful API from Any Postgres Database
At work, we've finally replaced a large part of a custom (mostly-)web backend with PostgREST recently, and that's quite a relief: considerably less code to maintain in that project now, and that was a rather awkward code. Something akin to PostgREST's "Embedding with Top-level Filtering" [1] had to be provided for all the tables, with OpenAPI schema and a typed API (Haskell + Servant); I avoided manually writing it all down, but at the cost of poking framework internals, and maintainability suffered. It was particularly annoying that the code doesn't really do anything useful, except for standing between a database and an HTTP client, and simply mimics the database anyway. Whenever a change had to be introduced, it was introduced into the database, the backend, and the frontend simultaneously, so it wasn't even useful for some kind of compatibility.
Now PostgREST handles all that, and only a few less trivial endpoints are handled by a custom backend (including streaming, which I'm considering replacing with postgrest-websocket [2] at some point).
During the switch to PostgREST, the encountered minor issues were those with inherited tables (had to set a bunch of computed/virtual columns [3] in order to "embed" those), and with a bug on filtering using such relations (turned out it was an already-fixed regression [4], so an update helped). Also a couple of helper stored procedures (to use via /rpc/) for updates in multiple tables at once (many-to-many relationships, to edit entities along with their relationships, using fewer requests) were added (though the old custom backend didn't have that), the security policies were set from the beginning, the frontend was rewritten (which allowed to finally switch without adding more work), so it was only left to cleanup the backend.
Not using views, since as mentioned above, database changes usually correspond to frontend changes, and the API doesn't have to be that stable yet.
Happy with it so far.
[1] https://postgrest.org/en/stable/api.html#embedding-with-top-...
[2] https://github.com/diogob/postgres-websockets
[3] https://postgrest.org/en/stable/api.html#computed-virtual-co...
duplo
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PhotoPrism: Browse Your Life in Pictures
And if you just want to go by the pixel data, look into "perceptual hashing". https://github.com/rivo/duplo works quite well for me, even when dealing with watermarks or slight colour processing / sharpening. You could even go further and improve your success rate with Neural Hash or something similar.
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Get number of open files
I looked at that library, but I would switch to another one. The author does like his loops in loops in loops in loops a lot. Perhaps : https://github.com/rivo/duplo is more usable?
What are some alternatives?
postgrest - REST API for any Postgres database
mash-playbook - 🐋 Ansible playbook which helps you host various FOSS services as Docker containers on your own server
graphql-api - Write type-safe GraphQL services in Haskell
photo-autorganize
graphql - Haskell GraphQL implementation
PhotoPrism - AI-Powered Photos App for the Decentralized Web 🌈💎✨
gc-monitoring-wai - a wai application to show `GHC.Stats.GCStats`
PiGallery 2 - A fast directory-first photo gallery website, with rich UI, optimized for running on low resource servers (especially on raspberry pi)
simpleconfig
tagsoup - Haskell library for parsing and extracting information from (possibly malformed) HTML/XML documents
raml - RESTful API Modeling Language (RAML) library for Haskell
hbro - [Unmaintained] A minimal web-browser written and configured in Haskell.