SIsiraben·Oct 8, 2020Submission
Haskell Language Server 0.5.0: Case splitting and auto filling of typed holes
4 points · Open discussionhaskell
haskell-language-server
Haskell2020–2024
haskell / haskell-language-server
haskell-language-server
Official Haskell IDE support via the language server protocol (LSP)
13Distinct people
13Mentions
1Explicit recommenders
3KGitHub stars
What to know before exploring
What it is
Official Haskell IDE support via the language server protocol (LSP)
GitHub
Where it is used
No documented product use was verified in the last source check.
What people are saying
> What does Haskell have? It has Req (and a bunch of other also rans), and the docs for Req are atrocious, spanning a staggering 1 (one) example and then a meandering essay on…
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Also in these discussions
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This week on Hacker News
Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 7:02:50 PM UTC.
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Mentions over time
HN mentions by year13 dated mentions
Observed mentions: 2020-05-31 02:03:27 UTC to 2024-09-13 12:15:16 UTC.
Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.
View mention counts and date ranges
| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| 2020 | 2020-01-01 00:00:00 UTC | 2021-01-01 00:00:00 UTC | 3 | 1 | 2 |
| 2021 | 2021-01-01 00:00:00 UTC | 2022-01-01 00:00:00 UTC | 6 | 1 | 5 |
| 2022 | 2022-01-01 00:00:00 UTC | 2023-01-01 00:00:00 UTC | 1 | 1 | 0 |
| 2023 | 2023-01-01 00:00:00 UTC | 2024-01-01 00:00:00 UTC | 1 | 0 | 1 |
| 2024 | 2024-01-01 00:00:00 UTC | 2025-01-01 00:00:00 UTC | 2 | 0 | 2 |
What Hacker News says
3 sourcesHaskell Language Server (https://github.com/haskell/haskell-language-server) offers a pretty good IDE experience.
It also mitigates the parameter naming problem. With a type hole, the language server will infer the type. But in the case of two parameters having the same type, you have to consult the definition or doc.
In Motivation – Keli Language> What does Haskell have? It has Req (and a bunch of other also rans), and the docs for Req are atrocious, spanning a staggering 1 (one) example and then a meandering essay on the deficiency of other Haskell HTTP clients. It's not good enough.
For HTTP request library, most would recommend Wreq. Being most popular, the documentation is really good I might say with most used API have their own example [1]. You can also easily find great tutorial on the net, like http://www.serpentine.com/wreq/tutorial.html for example. Honestly I never use Req myself and looking at the documentation myself, even though I don't it's lacking, I think it's not really geared toward Haskell beginners so maybe you have a point there.
As a novice Haskell programer who only use it for side projects, I don't think the documentation is that bad and it's only getting
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better. Most popular libraries like database clients and web frameworks have intensive documentation and tutorial nowadays.
I agree with you for the state of IDE support, it leaves something to be desired. But people are still working on it[2]. For now I mostly use vim with help of linter and formatter. The great thing about good type system is, you can still do much even without great IDE support. Haskell already have working and great REPL support that make development a breeze so it helped. I'll still take Haskell over OCaml or Scala anyday. Rust is great and I love it so much that it's my go to language for something system programming or networking related, but I don't think it's a good match if you want to learn functional programming.
[1] https://hackage.haskell.org/package/wreq-0.5.3.2/docs/Networ...
[2] https://github.com/haskell/haskell-language-server