haxl VS chaselev-deque

Compare haxl vs chaselev-deque and see what are their differences.

haxl

A Haskell library that simplifies access to remote data, such as databases or web-based services. (by facebook)

chaselev-deque

A collection of different packages for CAS based data structures. (by rrnewton)
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haxl chaselev-deque
12 -
4,308 109
0.1% 0.9%
4.1 5.7
2 months ago about 1 year ago
Haskell Haskell
BSD 3-clause "New" or "Revised" License BSD 3-clause "New" or "Revised" License
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

haxl

Posts with mentions or reviews of haxl. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2025-07-01.
  • Abstraction boundaries are optimization boundaries
    2 projects | news.ycombinator.com | 1 Jul 2025
    Name-dropped both the N+1 problem and Haskell without mentioning Haxl.

    Take a look at last decade's solution to this problem:

    https://github.com/facebook/Haxl/blob/main/example/sql/readm...

  • Functors, Applicatives, and Monads
    2 projects | news.ycombinator.com | 30 Mar 2025
    For some reason everyone wants to talk about Monads, but really the other types here are just as interesting. For example, Applicatives are less dynamic than Monads in that you can't `flatMap`/`bind` to decide on the "next" thing to evaluate based on the previous value, but in exchange you get a "static" tree (or graph) of Applicatives that lends itself much better to static analysis, optimization, parallelism, and so on.

    For example, Haxl (https://github.com/facebook/Haxl) uses this to optimize and parallelise remote data fetching, which is hard to do with Monads since those are inherently sequential due to the nature of `flatMap`/`bind`. My own Mill build tool (https://mill-build.org/) uses an applicative structure for your build so we can materialize the entire build graph up front and choose how to parallelize it, query it, or otherwise manipulate it before we actually start evaluating the individual steps

    Monads seem to have this strange aura around them that attracts certain kinds of personalities, but really they're just one abstraction in a whole toolkit of useful abstractions, and there are many cases where Applicative or some other construct are much more suited

  • Simon Peyton Jones – Haskell is useless [video]
    2 projects | news.ycombinator.com | 18 Feb 2024
  • Is Haskell gaining or losing popularity?
    2 projects | /r/haskell | 19 May 2023
  • Algebraic Effects: Another mistake carried through to perfection?
    2 projects | /r/ProgrammingLanguages | 4 May 2023
    Sounds a bit like Haxl. From this page:
  • Ban 1+N in Django
    10 projects | news.ycombinator.com | 26 Mar 2023
    +1. The JS event loop auto-monad-izing Promises into Haxl [1]-esqe trees of implicitly-batched loads has been a big win for us building on JavaScript/TypeScript.

    If I had to move to another language, I'd really want to find a "powered by the event loop / dataloader" framework, i.e. Vert.x for Java.

    Also, per dataloader, a shameless plug for our ORM that has dataloader de-N+1-ing built natively into all object graph traversals:

    https://joist-orm.io/docs/goals/avoiding-n-plus-1s

    [1]: https://github.com/facebook/Haxl

  • Is Meta decommissioning Sigma?
    2 projects | /r/haskell | 17 Jan 2023
    and Haxl
  • 11 Companies That Use Haskell in Production
    7 projects | dev.to | 4 May 2022
    Haxl, a framework for efficient and concise data fetching.
  • I would like a job writing Haskell
    7 projects | news.ycombinator.com | 8 Feb 2022
    You mean, Haxl? [1] But AFAIK only a few devs are involved for the development.

    [1] https://github.com/facebook/Haxl

  • Do You Know Where Haskell Is Used?
    6 projects | dev.to | 13 Dec 2021
    Probably, the most googled and well-known example of Haskell application in major companies is the Facebook Meta spam filters. Messages containing spam, links to potential malware and phishing attacks are filtered by Sigma, the system that was rewritten in Haskell in 2015. The choice of language was based, among other things, on performance requirements, the need for pure functions and static typing, as well as the possibility of interactive development. The Haxl framework is used under the bonnet, which the company has open-sourced. You can find more details about the development process and technical aspects in the company’s blog post.

chaselev-deque

Posts with mentions or reviews of chaselev-deque. We have used some of these posts to build our list of alternatives and similar projects.

We haven't tracked posts mentioning chaselev-deque yet.
Tracking mentions began in Dec 2020.

What are some alternatives?

When comparing haxl and chaselev-deque you can also consider the following projects:

streamly - High performance, concurrent functional programming abstractions

conceit - Concurrently + Either

cspmchecker - The library FDR3 uses for parsing, type checking and evaluating machine CSP.

hjsonschema

fraxl

named-lock - A named lock that is created on demand.

Stream - Scalable APIs for Chat, Feeds, Moderation, & Video.
Stream helps developers build engaging apps that scale to millions with performant and flexible Chat, Feeds, Moderation, and Video APIs and SDKs powered by a global edge network and enterprise-grade infrastructure.
getstream.io
featured
InfluxDB – Built for High-Performance Time Series Workloads
InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
www.influxdata.com
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