opaleye
haskell-companies
Our great sponsors
opaleye | haskell-companies | |
---|---|---|
9 | 25 | |
594 | 900 | |
- | - | |
8.5 | 4.2 | |
5 days ago | about 1 month ago | |
Haskell | ||
BSD 3-clause "New" or "Revised" License | The Unlicense |
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.
opaleye
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What's your favorite Database EDSL/library in Haskell?
If you ever have any questions about Opaleye I'm happy to help. Feel free to open an issue to ask about anything any time.
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Persistent vs. beam for production database
Sounds like Opaleye isn't on your list of choices, but if it is then feel free to ask me any questions, any time by filing an issue (I'm the Opaleye maintainer).
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How to build a large-scale haskell backend for a photo sharing app (some questions)
Opaleye is Posgres-only, and Postgres does such a good job of optimizing queries that performance issues basically don't arise. I have a long-standing invitation to improve Opaleye's query generation as soon as anyone can produce a repeatable example of a poorly-performing query. In Opaleye's eight years, no one ever has. There's a thread where two reports have come close, but it's still not clear that that's simply due to using a six year old version of Postgres.
- What are things that the Haskell scene lacks the most?
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Out of memory when building product-profunctors
Nice! Well done. If you have any more questions about product-profunctors or Opaleye then please let me know. It's best to ask by [opening an issue](https://github.com/tomjaguarpaw/haskell-opaleye/issues/new).
- Embedded Pattern Matching
- How to simply do opaleye field type conversion
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Against SQL
The only way out that I can see is to design embedded domain specific languages (EDSLs) that inherit the expressiveness, composability and type safety from the host language. That's what Opaleye and Rel8 (Postgres EDSLs for Haskell do. Haskell is particularly good for this. The query language can be just a monad and therefore users can carry all of their knowledge of monadic programming to writing database queries.
This approach doesn't resolve all of the author's complaints but it does solve many.
Disclaimer: I'm the author of Opaleye. Rel8 is built on Opaleye. Other relational query EDSLs are available.
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Combining Deep and Shallow Embedding of Domain-Specific Languages
For an example of how this plays out in practice observe Opaleye's MaybeFields (generously contributed by Shane and /u/ocharles at Circuithub). The definition is essentially identical to Optional from the paper. Instead of a specialised typeclass Inhabited we use the ProductProfunctor NullSpec (which happens to conjure up an SQL NULL, but it could be any other witness).
haskell-companies
- A gently curated list of companies using Haskell in industry
- List of companies that use Haskell
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Are there any sectors that use Haskell as a main programming language?
There's quite a few finance companies listed on this haskell-companies list (and also 7 different blockchain companies). Standard Chartered presented how they use Haskell at HIW 2021.
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I'm totally lost and freaking out about what I'll do for a living after graduating.
This is a useful list: https://github.com/erkmos/haskell-companies
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Book Review: Production Haskell
There are only a handful of industry resources using Haskell, despite being a fully-fledged production language used by dozens of companies.
- Where could I get a job as junior haskell developer?
- Companies abandoning Haskell
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Where is Haskell used?
Here is the list of companies where Haskell is used.
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Are there a lot of Haskell jobs in the US?
You can find a list of some companies that use Haskell (some based in the US) here: https://github.com/erkmos/haskell-companies
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This guy loves Javascript
luck i guess, i had no idea of it's existance until i started working there (as an intern). 4 years later i fucking love it, best thing that ever happened to me. r/haskell has some postings from time to time, and they also made a list of companies that use it. I work in chile btw.
What are some alternatives?
esqueleto - Bare bones, type-safe EDSL for SQL queries on persistent backends.
learn-you-a-haskell - “Learn You a Haskell for Great Good!” by Miran Lipovača
mywatch
haxl - A Haskell library that simplifies access to remote data, such as databases or web-based services.
HDBC - Haskell Database Connectivity
InterviewTest2022
database-migrate - database-migrate haskell library to assist with migration for *-simple sql backends.
wire-server - 🇪🇺 Wire back-end services
HongoDB - A Simple Key Value Store
harmtrace - HarmTrace (Harmony Analysis and Retrieval of Music with Type-level Representations of Abstract Chords Entities) is a system for automatic harmony analysis of music.
squeal-postgresql - Squeal, a deep embedding of SQL in Haskell
pyre-check - Performant type-checking for python.