Attoparsec-conduit Alternatives

attoparsec-conduit reviews and mentions

• Writing Parquet files using Haskell
  5 projects | news.ycombinator.com | 24 Sep 2026

  There are companies like IOHK or Mercury that hired large swathes (50?) of Haskell programmers in relatively short time, so I don't think bus factor of the programmer market is an issue. Of course it's still an issue if a company hires 1 or 2 Haskell devs only, and those depart.

  > from the past three years [..] the latest I’ve seen were Opus-4.6 and GPT-5.5 struggle a lot with standard GHC Haskell

  If your experience is from years ago, I totally get that. For my standards, LLMs were pretty bad before 2026.

  I haven't tried any serious LLM Haskell before 2026-02, because it was just not a timesaver.

  I had good experiences with Opus-4.6 already on Haskell, such as it having detail knowledge on async exceptions, allowing it to immediately pinpoint difficult bugs that me and other experts missed, e.g. https://github.com/snoyberg/conduit/pull/530

  But most of my experience is from Opus >= 4.8. I found it excellent at writing difficult TemplateHaskell and Generics implementations, such as oneshotting Postgres JsonPath queries derived from lens-like field accessors on Haskell types.

  Note it's still not great at writing general high-quality "engineering" stuff, e.g. Opus 5.0 writes functions that refer to things out of their scope, such as:

      requireFooOr400 :: MyMonad m => Maybe Foo -> m Foo

• Haskell: A Great Procedural Language
  18 projects | news.ycombinator.com | 19 Jan 2025
• Ask HN: What resources do you recommend for learning Haskell?
  8 projects | news.ycombinator.com | 21 Jul 2024

  Working through Learn You A Haskell is a good start.

  After that, I honestly think you'll get the best bang-for-buck by reading library-specific tutorials. If you play with enough of the libraries the rest of the language more or less falls into place.

  Conduit is a pretty ok streaming library, and has good documentation: https://github.com/snoyberg/conduit#readme

  Lens gives you a lot of useful features that more or less correspond to stuff like Getters and Setters in something like Java, and the tutorials for it get into some helpful details about writing Haskell code: https://hackage.haskell.org/package/lens

  Otherwise it's basically a lot of "just build shit, and don't be afraid to feel confused" and it'll fall into place.

• Conduit question - what is "a single input value"?
  1 project | /r/haskell | 4 Feb 2023
• Parallel streaming in Haskell: Part 1 – Fast, efficient, and fun
  2 projects | news.ycombinator.com | 5 Jan 2023

  > makes me think that there aren't any conduits that have more data than can fit in memory on a single machine

  Just because you can dedup a conduit doesn't mean you have to. We use conduits for streaming gigabytes-large files while staying within megabytes of memory use – ensuring that is one of the main selling points of libraries like conduit: https://github.com/snoyberg/conduit#readme

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  www.appsignal.com | 15 Oct 2026

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