Archive of stories published by Permutive

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Paulius Imbrasas in Permutive

Aug 6, 2019

Taking BigQuery HLL to the extreme

BigQuery, HLL and the inclusion-exclusion principle

Building petabyte-scale analytics with BigQuery and HLL

2 responses

Tim Spence in Permutive

Jan 31, 2019

Having your cake and eating it

Pure, mutable state in Haskell with the ST monad

At Permutive, we’re committed to functional programming. That typically means also committing to immutable data structures (a very good thing!), but there are times when…

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Tim Spence in Permutive

Aug 2, 2019

Optimized Docker builds for Haskell Stack

Stack recently removed support for automatically building Docker images for Haskell apps, citing the reason that “with the advent of Docker multistage builds, this functionality is no longer useful.”

1 response

Tim Spence in Permutive

Feb 19, 2019

Towards a better API for I/O

Iteratees in Haskell

The core premise of Iteratees (and their ideologically similar derivatives such as fs2 in Scala and pipes and conduit in Haskell) is that there are three properties you should seek in an I/O API:

Travis Brown in Permutive

Mar 4, 2020

Community engineering report

February 2020

Travis Brown in Permutive

Sep 3, 2019

Community engineering report

August 2019

Permutive Community Engineering, August 2019

This article summarizes some of the projects that I worked on during my first month on Permutive’s new Community Engineering team. We’ll be publishing a follow-up…

Tim Spence in Permutive

Feb 28, 2020

Announcing Cats STM 0.7.0

I recently released version 0.7.0 of Cats STM with several significant bug fixes and improvements to the fairness…

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Travis Brown in Permutive

Dec 6, 2019

Community engineering report

November 2019

Permutive Community Engineering, November 2019

We’d planned a few big releases for November (Cats 2.1.0, Jawn 1.0.0, and Sangria 2.0.0), and while none of these actually happened, Cats 2.1.0 in particular…

Tim Spence in Permutive

Mar 27, 2019

Fun with mutually-recursive typeclass resolution

Automatically deriving InputTypes in Sangria with Shapeless

At Permutive we’ve recently started experimenting with GraphQL, via Sangria. During that process I’ve had to write a few…

Travis Brown in Permutive

Feb 4, 2020

Community engineering report

January 2020

These were the top 10 stories published by Permutive; you can also dive into yearly archives: 2019, 2020, and 2022.

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Permutive

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