fused-effects
hasql-th
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fused-effects | hasql-th | |
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3 | 4 | |
631 | 109 | |
0.0% | - | |
4.5 | 5.2 | |
5 days ago | 4 months ago | |
Haskell | Haskell | |
BSD 3-clause "New" or "Revised" License | MIT License |
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fused-effects
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Where's more discussion of the designs of effect systems?
Languages such as Koka only support algebraic effects, not scoping operations such as catch and listen. The Effect Handlers in Scope paper introduces scoping operations, which lead to the Haskell libraries fused-effects and polysemy, but they turned out to have some weird semantics. eff is her effort to fix that.
- Haskell doesn't make sense without pure functions
- Monthly Hask Anything (June 2021)
hasql-th
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How to use PostgreSQL with Haskell: hasql
Hasql is an ecosystem of libraries. To keep it simple, let’s limit ourselves to core hasql, hasql-transaction, and hasql-th. We’re using hasql 1.6.3.2 published in 2023.
- Parsing SQL
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Open Source SQL Parsers
There is also a Haskell port of the original PostgreSQL parser, implemented using megaparsec, which makes it highly flexible and hackable: https://github.com/nikita-volkov/hasql-th#implementation
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Haskell doesn't make sense without pure functions
I'd consider hasql-th a good example in what concerns databases. Otherwise, I just use aeson together with deriving-aeson and lens-aeson.
What are some alternatives?
polysemy - :gemini: higher-order, no-boilerplate monads
eveff - Efficient Haskell effect handlers based on evidence translation.
Neks - A dead simple networked key/value store
eff - 🚧 a work in progress effect system for Haskell 🚧
tokyocabinet-haskell - This repository will get archived soon. Please visit https://git.singpolyma.net/tokyocabinet-haskell
hasql - The fastest PostgreSQL libpq-based driver for Haskell
wai-middleware-cache-redis - Redis backend for wai-middleware-cache
freer-simple - A friendly effect system for Haskell
control-monad-free - Free monads and monad transformers
ghc - Mirror of the Glasgow Haskell Compiler. Please submit issues and patches to GHC's Gitlab instance (https://gitlab.haskell.org/ghc/ghc). First time contributors are encouraged to get started with the newcomers info (https://gitlab.haskell.org/ghc/ghc/wikis/contributing).
ampersand - Build database applications faster than anyone else, and keep your data pollution free as a bonus.
control-monad-exception - Explicitly Typed exceptions as a library